Wesley Joann Tyler

US Patent:

41706021, Oct 9, 1979

Filed:

Jul 11, 1975

Appl. No.:

5/595067

Inventors:

Robert J. Deffeyes - Arlington TX
Wesley R. Tyler - Arlington TX

Assignee:

Graham Magnetics, Inc. - Graham TX

International Classification:

C07F 1502
C07F 1504
C07F 1506

US Classification:

260439R

Abstract:

Improved processes and products based on the discovery that metal atoms in complex relationship with complexing agents can be used to moderate the formation of organic salt seed crystals which promote an exceptionally well-ordered acicular growth of organometallic salts such as oxalates of the metal. Some acicular, i. e. needle-like, products have particular utility for being reduced to ferromagnetic metal particles which retain a surprisingly large degree of acicularity and possess extraordinarily favorable properties for use in magnetic recording applications.

US Patent:

40618242, Dec 6, 1977

Filed:

Sep 12, 1975

Appl. No.:

5/612708

Inventors:

Robert J. Deffeyes - Arlington TX
Wesley R. Tyler - Arlington TX

Assignee:

Graham Magnetics Incorporated - Graham TX

International Classification:

C22B 2304
B32B 516
B32B 1502

US Classification:

428328

Abstract:

Improved processes and products based on the discovery that metal atoms in complex relationship with complexing agents can be used to moderate the formation of organic salt seed crystals which promote an exceptionally well-ordered acicular growth of organometallic salts such as oxalates of the metal. Some acicular, i. e. needle-like, products have particular utility for being reduced to ferromagnetic metal particles which retain a surprisingly large degree of acicularity and possess extraordinarily favorable properties for use in magnetic recording applications.

US Patent:

42683025, May 19, 1981

Filed:

Jul 2, 1979

Appl. No.:

6/053952

Inventors:

Robert J. Deffeyes - Arlington TX
Wesley R. Tyler - Arlington TX

Assignee:

Graham Magnetics Incorporated - North Richland Hills TX

International Classification:

B22F 100

US Classification:

75 05AA

Abstract:

Improved processes and products based on the discovery that metal atoms in complex relationship with complexing agents can be used to moderate the formation of organic salt seed crystals which promote an exceptionally well-ordered acicular growth of organometallic salts such as oxalates of the metal. Some acicular, i. e. , needle-like, products have particular utility for being reduced to ferromagnetic metal particles which retain a surprisingly large degree of acicularity and possess extraordinarily favorable properties for use in magnetic recording applications.

US Patent:

40049175, Jan 25, 1977

Filed:

Jul 11, 1975

Appl. No.:

5/595066

Inventors:

Robert J. Deffeyes - Arlington TX
Wesley R. Tyler - Arlington TX

Assignee:

Graham Magnetics Incorporated - Graham TX

International Classification:

C22B 2304

US Classification:

75 5AA

Abstract:

Improved processes and products based on the discovery that metal atoms in complex relationship with complexing agents can be used to moderate the formation of organic salt seed crystals which promote an exceptionally well-ordered acicular growth of organometallic salts such as oxalates of the metal. Some acicular, i. e. needle-like, products have particular utility for being reduced to ferromagnetic metal particles which retain a surprisingly large degree of acicularity and possess extraordinarily favorable properties for use in magnetic recording applications.