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Toshihiko Yoshitomi
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Sagamihara, JP
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last 30 patents
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Patent Grant
Magnetic toner for electrophotography
Patent number
4,960,668
Issue date
Oct 2, 1990
Mitsubishi Kasei Corporation
Toshihiko Yoshitomi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Optical recording medium and process for producing the same
Patent number
4,839,207
Issue date
Jun 13, 1989
Mitsubishi Chemical Industries Limited
Toshihiko Yoshitomi
G11 - INFORMATION STORAGE
Information
Patent Grant
Amorphous silicon hydride photoreceptors for electrophotography, pr...
Patent number
4,764,448
Issue date
Aug 16, 1988
Mitsubishi Chemical Industries, Ltd.
Toshihiko Yoshitomi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Magneto-optical medium
Patent number
4,743,502
Issue date
May 10, 1988
Mitsubishi Chemical Industries Limited
Toshihiko Yoshitomi
G11 - INFORMATION STORAGE
Information
Patent Grant
Substrate for amorphous silicon semiconductor material
Patent number
4,551,575
Issue date
Nov 5, 1985
Mitsubishi Chemical Industries Limited
Kiyoshi Takahashi
H01 - BASIC ELECTRIC ELEMENTS