Sumiko Watabe

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Electrophotographic photoreceptor
- Patent number 5,338,633
- Issue date Aug 16, 1994
- Mitsubishi Kasei Corporation
- Mamoru Nozomi
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Electrophotographic photoreceptor containing hydrazone compounds
- Patent number 5,284,728
- Issue date Feb 8, 1994
- Mitsubishi Kasei Corporation
- Tetsuo Murayama
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparation of crystalline oxytitanium phthalocyanine
- Patent number 5,059,355
- Issue date Oct 22, 1991
- Mitsubishi Kasei Corporation
- Hitoshi Ono
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photoreceptor
- Patent number 5,037,714
- Issue date Aug 6, 1991
- Mitsubishi Kasei Corporation
- Mamoru Nozomi
- C07 - ORGANIC CHEMISTRY