Yasuo Murakami

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Electrophotographic photoreceptor
- Patent number 6,790,574
- Issue date Sep 14, 2004
- Hodogaya Chemical Co., Ltd.
- Katsumi Abe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Display device
- Patent number 6,686,969
- Issue date Feb 3, 2004
- NEC - Mitsubishi Electric Visual Systems Corporation
- Kouichirou Hara
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Diamine compounds for use in electrophotographic photoconductors
- Patent number 5,631,404
- Issue date May 20, 1997
- Ricoh Company, Ltd.
- Mitsutoshi Anzai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Hydrazone compounds
- Patent number 5,629,421
- Issue date May 13, 1997
- Hodagaya Chemical Co., Ltd.
- Atsushi Takesue
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Hydrazone compound and electrophotographic photoreceptor and organi...
- Patent number 5,512,400
- Issue date Apr 30, 1996
- Hodogaya Chemical Co., Ltd.
- Atsushi Takesue
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Electrophotographic photoconductor and diamine compounds for use in...
- Patent number 5,489,495
- Issue date Feb 6, 1996
- Richoh Company, Ltd.
- Mitsutoshi Anzai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Electrophotographic photoreceptor
- Publication number 20030203298
- Publication date Oct 30, 2003
- Hodogaya Chemical Co., Ltd.
- Katsumi Abe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY