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Akio Kuroda
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Yokohama, JP
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last 30 patents
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Patent Grant
High density information record medium comprising a polymer materia...
Patent number
4,906,499
Issue date
Mar 6, 1990
Victor Company of Japan, Ltd.
Toshiaki Hamaguchi
G11 - INFORMATION STORAGE
Information
Patent Grant
High density information record medium using carbon black particles...
Patent number
4,646,284
Issue date
Feb 24, 1987
Victor Company of Japan, Ltd.
Toshiaki Hamaguchi
G11 - INFORMATION STORAGE
Information
Patent Grant
High density information records made of conductive resin compositi...
Patent number
4,639,908
Issue date
Jan 27, 1987
Victor Company of Japan, Ltd.
Kazuhira Namikawa
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
High density information records of an electrostatic capacitance type
Patent number
4,631,717
Issue date
Dec 23, 1986
Victor Company of Japan, Ltd.
Kazuhira Namikawa
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Conductive resin composition and information record
Patent number
4,592,862
Issue date
Jun 3, 1986
Victor Company of Japan, Ltd.
Mutsuaki Nakamura
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
High density information records made of conductive resin compositi...
Patent number
4,548,739
Issue date
Oct 22, 1985
Victor Company of Japan, Ltd.
Mutsuaki Nakamura
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
High density information record made of a conductive resin composit...
Patent number
4,547,545
Issue date
Oct 15, 1985
Victor Company of Japan, Ltd.
Toshiaki Hamaguchi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...