Kaoru Teramura

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Kawasaki, JP

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Patents Grantslast 30 patents

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Tricyclic pyrazine compound and electrophotographic photoconductor...
- Patent number 5,618,935
- Issue date Apr 8, 1997
- Ricoh Company, Ltd.
- Masayuki Shoshi
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Positively-chargeable single-layered type electrophotographic photo...
- Patent number 5,492,784
- Issue date Feb 20, 1996
- Ricoh Company, Ltd.
- Masao Yoshikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Pyrazine compound and electrophotographic photoconductor comprising...
- Patent number 5,460,909
- Issue date Oct 24, 1995
- Ricoh Company, Ltd.
- Masayuki Shoshi
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
High dielectric polymeric optical recording medium
- Patent number 5,326,678
- Issue date Jul 5, 1994
- Ricoh Company Ltd.
- Akio Kojima
- G11 - INFORMATION STORAGE