Hajime Miyatuka

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Patents Grantslast 30 patents

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Process for preparing ferromagnetic metal powder and a magnetic rec...
- Patent number 4,481,253
- Issue date Nov 6, 1984
- Fuji Photo Film Co., Ltd.
- Akihiro Matsufuji
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Magnetic recording medium
- Patent number 4,465,737
- Issue date Aug 14, 1984
- Fuji Photo Film Co., Ltd.
- Hajime Miyatuka
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 4,455,345
- Issue date Jun 19, 1984
- Fuji Photo Film Co., Ltd.
- Hajime Miyatuka
- G11 - INFORMATION STORAGE
Information Patent Grant
Electrophotographic photosensitive layer and marking method
- Patent number 4,105,448
- Issue date Aug 8, 1978
- Fuji Photo Film Co., Ltd.
- Hajime Miyatuka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY