Dispersoid reinforced alloy powder and method of making

Anderson, Iver E.; Terpstra, Robert L.

Advanced Search OptionsAdvanced Search queries use a traditional Term Search. For more info, see our FAQ.

All Fields:

Patent Title:

Abstract:

Assignee:

Inventor(s):

Patent Number:

Patent Classification (CPC):

All Classifications
A - human necessities
A01 - agriculture
A21 - baking
A22 - butchering
A23 - foods or foodstuffs
A24 - tobacco
A41 - wearing apparel
A42 - headwear
A43 - footwear
A44 - haberdashery
A45 - hand or travelling articles
A46 - brushware
A47 - furniture
A61 - medical or veterinary science
A62 - life-saving
A63 - sports
A99 - subject matter not otherwise provided for in this section
B - performing operations
B01 - physical or chemical processes or apparatus in general
B02 - crushing, pulverising, or disintegrating
B03 - separation of solid materials using liquids or using pneumatic tables or jigs
B04 - centrifugal apparatus or machines for carrying-out physical or chemical processes
B05 - spraying or atomising in general
B06 - generating or transmitting mechanical vibrations in general
B07 - separating solids from solids
B08 - cleaning
B09 - disposal of solid waste
B21 - mechanical metal-working without essentially removing material
B22 - casting
B23 - machine tools
B24 - grinding
B25 - hand tools
B26 - hand cutting tools
B27 - working or preserving wood or similar material
B28 - working cement, clay, or stone
B29 - working of plastics
B30 - presses
B31 - making articles of paper, cardboard or material worked in a manner analogous to paper
B32 - layered products
B33 - additive manufacturing technology
B41 - printing
B42 - bookbinding
B43 - writing or drawing implements
B44 - decorative arts
B60 - vehicles in general
B61 - railways
B62 - land vehicles for travelling otherwise than on rails
B63 - ships or other waterborne vessels
B64 - aircraft
B65 - conveying
B66 - hoisting
B67 - opening, closing {or cleaning} bottles, jars or similar containers
B68 - saddlery
B81 - microstructural technology
B82 - nanotechnology
B99 - subject matter not otherwise provided for in this section
C - chemistry
C01 - inorganic chemistry
C02 - treatment of water, waste water, sewage, or sludge
C03 - glass
C04 - cements
C05 - fertilisers
C06 - explosives
C07 - organic chemistry
C08 - organic macromolecular compounds
C09 - dyes
C10 - petroleum, gas or coke industries
C11 - animal or vegetable oils, fats, fatty substances or waxes
C12 - biochemistry
C13 - sugar industry
C14 - skins
C21 - metallurgy of iron
C22 - metallurgy
C23 - coating metallic material
C25 - electrolytic or electrophoretic processes
C30 - crystal growth
C40 - combinatorial technology
C99 - subject matter not otherwise provided for in this section
D - textiles
D01 - natural or man-made threads or fibres
D02 - yarns
D03 - weaving
D04 - braiding
D05 - sewing
D06 - treatment of textiles or the like
D07 - ropes
D10 - indexing scheme associated with sublasses of section d, relating to textiles
D21 - paper-making
D99 - subject matter not otherwise provided for in this section
E - fixed constructions
E01 - construction of roads, railways, or bridges
E02 - hydraulic engineering
E03 - water supply
E04 - building
E05 - locks
E06 - doors, windows, shutters, or roller blinds in general
E21 - earth drilling
E99 - subject matter not otherwise provided for in this section
F - mechanical engineering
F01 - machines or engines in general
F02 - combustion engines
F03 - machines or engines for liquids
F04 - positive - displacement machines for liquids
F05 - indexing schemes relating to engines or pumps in various subclasses of classes f01-f04
F15 - fluid-pressure actuators
F16 - engineering elements and units
F17 - storing or distributing gases or liquids
F21 - lighting
F22 - steam generation
F23 - combustion apparatus
F24 - heating
F25 - refrigeration or cooling
F26 - drying
F27 - furnaces
F28 - heat exchange in general
F41 - weapons
F42 - ammunition
F99 - subject matter not otherwise provided for in this section
G - physics
G01 - measuring
G02 - optics
G03 - photography
G04 - horology
G05 - controlling
G06 - computing
G07 - checking-devices
G08 - signalling
G09 - education
G10 - musical instruments
G11 - information storage
G12 - instrument details
G16 - information and communication technology [ict] specially adapted for specific application fields
G21 - nuclear physics
G99 - subject matter not otherwise provided for in this section
H - electricity
H01 - basic electric elements
H02 - generation
H03 - basic electronic circuitry
H04 - electric communication technique
H05 - electric techniques not otherwise provided for
H99 - subject matter not otherwise provided for in this section
Y - new / cross sectional technologies
Y02 - technologies or applications for mitigation or adaptation against climate change
Y04 - information or communication technologies having an impact on other technology areas
Y10 - technical subjects covered by former uspc

More Options ...

Title: Dispersoid reinforced alloy powder and method of making

Abstract

A method of making dispersion-strengthened alloy particles involves melting an alloy having a corrosion and/or oxidation resistance-imparting alloying element, a dispersoid-forming element, and a matrix metal wherein the dispersoid-forming element exhibits a greater tendency to react with a reactive species acquired from an atomizing gas than does the alloying element. The melted alloy is atomized with the atomizing gas including the reactive species to form atomized particles so that the reactive species is (a) dissolved in solid solution to a depth below the surface of atomized particles and/or (b) reacted with the dispersoid-forming element to form dispersoids in the atomized particles to a depth below the surface of said atomized particles. The atomized alloy particles are solidified as solidified alloy particles or as a solidified deposit of alloy particles. Bodies made from the dispersion strengthened alloy particles, deposit thereof, exhibit enhanced fatigue and creep resistance and reduced wear as well as enhanced corrosion and/or oxidation resistance at high temperatures by virtue of the presence of the corrosion and/or oxidation resistance imparting alloying element in solid solution in the particle alloy matrix.

Inventors:: Anderson, Iver E.; Terpstra, Robert L.

Issue Date:: Tue Oct 10 00:00:00 EDT 2017

Research Org.:: Ames Laboratory (AMES), Ames, IA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1398990

Patent Number(s):: 9782827

Application Number:: 14/121,415

Assignee:: Iowa State University Research Foundation, Inc.

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER

C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS

Show more

B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER
B22F2009/0888 - {casting construction of the melt process, apparatus, intermediate reservoir, e.g. tundish, devices for temperature control}
B22F2009/0896 - {particle transport, separation
B22F2201/02 - Nitrogen
B22F2201/03 - Oxygen
B22F2201/11 - Argon
B22F2201/30 - Carburising atmosphere
B22F2207/00 - Aspects of the compositions, gradients
B22F2999/00 - Aspects linked to processes or compositions used in powder metallurgy
B22F9/082 - {atomising using a fluid

C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS
C22C1/056 - {using gas}
C22C1/1042 - {by atomising
C22C19/03 - based on nickel
C22C32/00 - Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides whether added as such or formed in situ
C22C32/0015 - {with only single oxides as main non-metallic constituents}
C22C32/0021 - {Matrix based on noble metals, Cu or alloys thereof}
C22C49/02 - characterised by the matrix material
C22C5/02 - Alloys based on gold
C22C5/06 - Alloys based on silver
C22C9/00 - Alloys based on copper

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T428/12014 - having metal particles
Y10T428/12056 - Entirely inorganic
Y10T428/2982 - Particulate matter [e.g., sphere, flake, etc.]
Y10T428/2991 - Coated
Y10T428/2993 - Silicic or refractory material containing [e.g., tungsten oxide, glass, cement, etc.]

Show less

DOE Contract Number:: W-7405-ENG-82

Resource Type:: Patent

Resource Relation:: Patent File Date: 2014 Sep 03

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

Citation Formats


                    Anderson, Iver E., and Terpstra, Robert L. Dispersoid reinforced alloy powder and method of making.  United States: N. p., 2017. 
        Web.

Copy to clipboard


                    Anderson, Iver E., & Terpstra, Robert L. Dispersoid reinforced alloy powder and method of making.  United States.

Copy to clipboard


                    Anderson, Iver E., and Terpstra, Robert L. Tue .  
        "Dispersoid reinforced alloy powder and method of making".  United States.  https://www.osti.gov/servlets/purl/1398990.

Copy to clipboard


                    
@article{osti_1398990,

  title        = {Dispersoid reinforced alloy powder and method of making},

  author       = {Anderson, Iver E. and Terpstra, Robert L.},

  abstractNote = {A method of making dispersion-strengthened alloy particles involves melting an alloy having a corrosion and/or oxidation resistance-imparting alloying element, a dispersoid-forming element, and a matrix metal wherein the dispersoid-forming element exhibits a greater tendency to react with a reactive species acquired from an atomizing gas than does the alloying element. The melted alloy is atomized with the atomizing gas including the reactive species to form atomized particles so that the reactive species is (a) dissolved in solid solution to a depth below the surface of atomized particles and/or (b) reacted with the dispersoid-forming element to form dispersoids in the atomized particles to a depth below the surface of said atomized particles. The atomized alloy particles are solidified as solidified alloy particles or as a solidified deposit of alloy particles. Bodies made from the dispersion strengthened alloy particles, deposit thereof, exhibit enhanced fatigue and creep resistance and reduced wear as well as enhanced corrosion and/or oxidation resistance at high temperatures by virtue of the presence of the corrosion and/or oxidation resistance imparting alloying element in solid solution in the particle alloy matrix.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue Oct 10 00:00:00 EDT 2017},

  month        = {Tue Oct 10 00:00:00 EDT 2017}

}

Copy to clipboard

Patent:

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Production of Dispersion Hardened Copper Sheet from Metal Powders by Roll Compacting
patent, January 1972

Finlay, W. L.
US Patent Document 3,632,697
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3632697

Metal Dispersoid Powder Compositions
patent, June 1973

Fustukian, David A. W.; Norris, Leon F.; Fraser, Robert W.
US Patent Document 3,741,748
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3741748

Process for Making Sintered Articles
patent, November 1973

Kizer, Donald E.
US Patent Document 3,775,100
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3775100

Method for preparing magnetic alloy powder by surface nitriding
patent, September 1975

Takahashi, Noboru; Chiba, Koji; Nakamura, Mutsuaki
US Patent Document 3,904,448
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/3904448

Dispersion strengthened ferritic alloy for use in liquid-metal fast breeder reactors (LMFBRS)
patent, February 1978

Fischer, John J.
US Patent Document 4,075,010
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4075010

Dispersion strengthened metals
patent, June 1981

Nadkarni, Anil V.
US Patent Document 4,274,873
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4274873

Hard ferrite powder and process for the preparation thereof
patent, June 1982

Schmidberger, Rainer; Franke, Hilmar
US Patent Document 4,336,242
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4336242

Hard magnetic alloys of a transition metal and lanthanide
patent, September 1983

Koon, Norman C.
US Patent Document 4,402,770
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4402770

Preparation of hard magnetic alloys of a transition metal and lanthanide
patent, August 1985

Koon, Norman C.
US Patent Document 4,533,408
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4533408

Method for making rare-earth element containing permanent magnets
patent, April 1986

Narasimhan, Kalatur S. V. L.; Dulis, Edward J.
US Patent Document 4,585,473
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4585473

Process for producing permanent magnet materials
patent, July 1986

Matsuura, Yutaka; Sagawa, Masato; Fujimura, Setsuo
US Patent Document 4,597,938
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4597938

Method for generating fine sprays of molten metal for spray coating and powder making
patent, October 1986

Ayers, Jack D.; Anderson, Iver E.
US Patent Document 4,619,845
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4619845

Powder-metallurgical process for the production of a green pressed article of high strength and of low relative density from a heat resistant aluminum alloy
patent, July 1988

Couper, Malcolm J.
US Patent Document 4,758,405
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4758405

Method for manufacturing permanent magnets
patent, January 1989

Inoue, Nobuyuki; Takahashi, Katsumi; Imaizumi, Nobuo
US Patent Document 4,801,340
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4801340

High energy product rare earth-iron magnet alloys
patent, February 1989

Croat, John J.
US Patent Document 4,802,931
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4802931

Method for making flakes of RE-Fe-B type magnetically aligned material
patent, September 1989

Haverstick, Jerry Edward
US Patent Document 4,867,809
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4867809

Method for producing superfine powder in spherical form
patent, April 1990

Walz, Alfred
US Patent Document 4,919,854
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4919854

Sintered ferro alloy having heat and wear resistance and process for making
patent, October 1990

Fujiki, Akira; Yasuda, Yoshiteru; Endo, Hiroyuki
US Patent Document 4,966,626
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4966626

Method of producing nitrogen-strengthened alloys
patent, March 1991

Wilson, Eric G.
US Patent Document 4,999,052
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4999052

Dispersion strengthened copper alloy and a method of manufacturing the same
patent, April 1991

Shimamura, Keizo; Amano, Kagetaka; Aisaka, Tatsuyoshi
US Patent Document 5,004,498
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5004498

Fine hollow particles of metals and metal alloys and their production
patent, June 1991

Ashdown, Charles P.; Bewley, James G.; Kenney, George B.
US Patent Document 5,024,695
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5024695

Process for producing powdered aluminum alloys
patent, February 1992

Birkenstock, Udo; Scharschmidt, Jurgen; Kunert, Peter
US Patent Document 5,090,997
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5090997

Producing void-free metal alloy powders by melting as well as atomization under nitrogen ambient
patent, May 1992

Biancaniello, Francis S.; Janowski, Gregg N.; Ridder, Stephen D.
US Patent Document 5,114,470
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5114470

Atomizing nozzle and process
patent, June 1992

Anderson, Iver E.; Figliola, Richard S.; Molnar, Holly M.
US Patent Document 5,125,574
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5125574

Method and equipment for microatomizing liquids, preferably melts
patent, March 1993

Larsson, Hans-Gunnar
US Patent Document 5,190,701
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5190701

Atomizing apparatus and process
patent, March 1993

Coombs, Jeffrey S.; Dunstan, Gordon R.
US Patent Document 5,196,049
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5196049

Gas atomization synthesis of refractory or intermetallic compounds and supersaturated solid solutions
patent, November 1994

Anderson, Iver E.; Lograsso, Barbara K.; Ellis, Timothy W.
US Patent Document 5,368,657
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5368657

Method of making environmentally stable reactive alloy powders
patent, December 1994

Anderson, Iver E.; Lograsso, Barbara K.; Terpstra, Robert L.
US Patent Document 5,372,629
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5372629

Sintered metal bodies and manufacturing method therefor
patent, June 1995

Harada, Takashi; Fujiwara, Yoshihiro; Abe, Fumio
US Patent Document 5,427,601
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5427601

Highly rigid composite material and process for its manufacture
patent, October 1995

Asabe, Kazutaka; Nishiguchi, Masaru; Yamamoto, Sukeyoshi
US Patent Document 5,462,808
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5462808

Fe-based sintered alloy having wear resistance
patent, February 1996

Takahasi, Yositaka; Manabe, Akira; Kaneko, Tadataka
US Patent Document 5,489,324
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5489324

Alloy having excellent corrosion resistance and abrasion resistance, method for producing the same and material for use in production of the same
patent, March 1997

Sasaki, Kyoichi; Kato, Yoshihisa
US Patent Document 5,615,406
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5615406

Iron-based metallurgical compositions containing flow agents and methods for using same
patent, July 1998

Luk, Sydney
US Patent Document 5,782,954
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5782954

Strengthening of metallic alloys with nanometer-size oxide dispersions
patent, June 1999

Flinn, John E.; Kelly, Thomas F.
US Patent Document 5,908,486
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5908486

Oxide-dispersion strengthening of porous powder metalurgy parts
patent, April 2002

Judkins, Roddie R.
US Patent Document 6,375,705
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6375705

Production process for Fe-based sintered alloy valve seat
patent-application, July 2004

Kawakami, Atsushi; Hoshino, Kazuyuki; Hanata, Kunio
US Patent Document 10/677137; 20040131492
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20040131492

Ni-based sintered alloy
patent-application, May 2005

Okada, Ikuo; Ohsawa, Kei; Oguma, Hidetaka
US Patent Document 11/012222; 20050097986
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20050097986

Similar Records in DOE Patents and OSTI.GOV collections:

Dispersoid reinforced alloy powder and method of making

Patent Anderson, Iver E.; Terpstra, Robert L.

A method of making dispersion-strengthened alloy particles involves melting an alloy having a corrosion and/or oxidation resistance-imparting alloying element, a dispersoid-forming element, and a matrix metal wherein the dispersoid-forming element exhibits a greater tendency to react with a reactive species acquired from an atomizing gas than does the alloying element. The melted alloy is atomized with the atomizing gas including the reactive species to form atomized particles so that the reactive species is (a) dissolved in solid solution to a depth below the surface of atomized particles and/or (b) reacted with the dispersoid-forming element to form dispersoids in the atomizedmore » « less
Full Text Available
Dispersoid reinforced alloy powder and method of making

Patent Anderson, Iver E; Rieken, Joel

A method of making dispersion-strengthened alloy particles involves melting an alloy having a corrosion and/or oxidation resistance-imparting alloying element, a dispersoid-forming element, and a matrix metal wherein the dispersoid-forming element exhibits a greater tendency to react with an introduced reactive species than does the alloying element and wherein one or more atomizing parameters is/are modified to controllably reduce the amount of the reactive species, such as oxygen, introduced into the atomized particles so as to reduce anneal times and improve reaction (conversion) to the desired strengthening dispersoids in the matrix. The atomized alloy particles are solidified as solidified alloy particlesmore » « less
Full Text Available
Dispersoid reinforced alloy powder and method of making

Patent Anderson, Iver E.; Terpstra, Robert L.

A method of making dispersion-strengthened alloy particles involves melting an alloy having a corrosion and/or oxidation resistance-imparting alloying element, a dispersoid-forming element, and a matrix metal wherein the dispersoid-forming element exhibits a greater tendency to react with a reactive species acquired from an atomizing gas than does the alloying element. The melted alloy is atomized with the atomizing gas including the reactive species to form atomized particles so that the reactive species is (a) dissolved in solid solution to a depth below the surface of atomized particles and/or (b) reacted with the dispersoid-forming element to form dispersoids in the atomizedmore » « less
Full Text Available
Dispersoid reinforced alloy powder and method of making

Patent Anderson, Iver E [Ames, IA]; Terpstra, Robert L [Ames, IA]

A method of making dispersion-strengthened alloy particles involves melting an alloy having a corrosion and/or oxidation resistance-imparting alloying element, a dispersoid-forming element, and a matrix metal wherein the dispersoid-forming element exhibits a greater tendency to react with a reactive species acquired from an atomizing gas than does the alloying element. The melted alloy is atomized with the atomizing gas including the reactive species to form atomized particles so that the reactive species is (a) dissolved in solid solution to a depth below the surface of atomized particles and/or (b) reacted with the dispersoid-forming element to form dispersoids in the atomizedmore » « less
Full Text Available
Dispersoid reinforced alloy powder and method of making

Patent Anderson, Iver E; Terpstra, Robert L

A method of making dispersion-strengthened alloy particles involves melting an alloy having a corrosion and/or oxidation resistance-imparting alloying element, a dispersoid-forming element, and a matrix metal wherein the dispersoid-forming element exhibits a greater tendency to react with a reactive species acquired from an atomizing gas than does the alloying element. The melted alloy is atomized with the atomizing gas including the reactive species to form atomized particles so that the reactive species is (a) dissolved in solid solution to a depth below the surface of atomized particles and/or (b) reacted with the dispersoid-forming element to form dispersoids in the atomizedmore » « less
Full Text Available

Similar Records

Title: Dispersoid reinforced alloy powder and method of making

Abstract

Citation Formats

Production of Dispersion Hardened Copper Sheet from Metal Powders by Roll Compacting patent, January 1972

Metal Dispersoid Powder Compositions patent, June 1973

Process for Making Sintered Articles patent, November 1973

Method for preparing magnetic alloy powder by surface nitriding patent, September 1975

Dispersion strengthened ferritic alloy for use in liquid-metal fast breeder reactors (LMFBRS) patent, February 1978

Dispersion strengthened metals patent, June 1981

Hard ferrite powder and process for the preparation thereof patent, June 1982

Hard magnetic alloys of a transition metal and lanthanide patent, September 1983

Preparation of hard magnetic alloys of a transition metal and lanthanide patent, August 1985

Method for making rare-earth element containing permanent magnets patent, April 1986

Process for producing permanent magnet materials patent, July 1986

Method for generating fine sprays of molten metal for spray coating and powder making patent, October 1986

Powder-metallurgical process for the production of a green pressed article of high strength and of low relative density from a heat resistant aluminum alloy patent, July 1988

Method for manufacturing permanent magnets patent, January 1989

High energy product rare earth-iron magnet alloys patent, February 1989

Method for making flakes of RE-Fe-B type magnetically aligned material patent, September 1989

Method for producing superfine powder in spherical form patent, April 1990

Sintered ferro alloy having heat and wear resistance and process for making patent, October 1990

Method of producing nitrogen-strengthened alloys patent, March 1991

Dispersion strengthened copper alloy and a method of manufacturing the same patent, April 1991

Fine hollow particles of metals and metal alloys and their production patent, June 1991

Process for producing powdered aluminum alloys patent, February 1992

Producing void-free metal alloy powders by melting as well as atomization under nitrogen ambient patent, May 1992

Atomizing nozzle and process patent, June 1992

Method and equipment for microatomizing liquids, preferably melts patent, March 1993

Atomizing apparatus and process patent, March 1993

Gas atomization synthesis of refractory or intermetallic compounds and supersaturated solid solutions patent, November 1994

Method of making environmentally stable reactive alloy powders patent, December 1994

Sintered metal bodies and manufacturing method therefor patent, June 1995

Highly rigid composite material and process for its manufacture patent, October 1995

Fe-based sintered alloy having wear resistance patent, February 1996

Alloy having excellent corrosion resistance and abrasion resistance, method for producing the same and material for use in production of the same patent, March 1997

Iron-based metallurgical compositions containing flow agents and methods for using same patent, July 1998

Strengthening of metallic alloys with nanometer-size oxide dispersions patent, June 1999

Oxide-dispersion strengthening of porous powder metalurgy parts patent, April 2002

Production process for Fe-based sintered alloy valve seat patent-application, July 2004

Ni-based sintered alloy patent-application, May 2005

Production of Dispersion Hardened Copper Sheet from Metal Powders by Roll Compacting
patent, January 1972

Metal Dispersoid Powder Compositions
patent, June 1973

Process for Making Sintered Articles
patent, November 1973

Method for preparing magnetic alloy powder by surface nitriding
patent, September 1975

Dispersion strengthened ferritic alloy for use in liquid-metal fast breeder reactors (LMFBRS)
patent, February 1978

Dispersion strengthened metals
patent, June 1981

Hard ferrite powder and process for the preparation thereof
patent, June 1982

Hard magnetic alloys of a transition metal and lanthanide
patent, September 1983

Preparation of hard magnetic alloys of a transition metal and lanthanide
patent, August 1985

Method for making rare-earth element containing permanent magnets
patent, April 1986

Process for producing permanent magnet materials
patent, July 1986

Method for generating fine sprays of molten metal for spray coating and powder making
patent, October 1986

Powder-metallurgical process for the production of a green pressed article of high strength and of low relative density from a heat resistant aluminum alloy
patent, July 1988

Method for manufacturing permanent magnets
patent, January 1989

High energy product rare earth-iron magnet alloys
patent, February 1989

Method for making flakes of RE-Fe-B type magnetically aligned material
patent, September 1989

Method for producing superfine powder in spherical form
patent, April 1990

Sintered ferro alloy having heat and wear resistance and process for making
patent, October 1990

Method of producing nitrogen-strengthened alloys
patent, March 1991

Dispersion strengthened copper alloy and a method of manufacturing the same
patent, April 1991

Fine hollow particles of metals and metal alloys and their production
patent, June 1991

Process for producing powdered aluminum alloys
patent, February 1992

Producing void-free metal alloy powders by melting as well as atomization under nitrogen ambient
patent, May 1992

Atomizing nozzle and process
patent, June 1992

Method and equipment for microatomizing liquids, preferably melts
patent, March 1993

Atomizing apparatus and process
patent, March 1993

Gas atomization synthesis of refractory or intermetallic compounds and supersaturated solid solutions
patent, November 1994

Method of making environmentally stable reactive alloy powders
patent, December 1994

Sintered metal bodies and manufacturing method therefor
patent, June 1995

Highly rigid composite material and process for its manufacture
patent, October 1995

Fe-based sintered alloy having wear resistance
patent, February 1996

Alloy having excellent corrosion resistance and abrasion resistance, method for producing the same and material for use in production of the same
patent, March 1997

Iron-based metallurgical compositions containing flow agents and methods for using same
patent, July 1998

Strengthening of metallic alloys with nanometer-size oxide dispersions
patent, June 1999

Oxide-dispersion strengthening of porous powder metalurgy parts
patent, April 2002

Production process for Fe-based sintered alloy valve seat
patent-application, July 2004

Ni-based sintered alloy
patent-application, May 2005