Tatsuya Katoh deceased

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late of Yokodera, JP

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Patents Grantslast 30 patents

Information Patent Grant
Layered electrophotographic photoconductor containing a hydrazone
- Patent number 4,481,271
- Issue date Nov 6, 1984
- Ricoh Company, Ltd.
- Mitsuru Hashimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Layered charge generator/transport electrophotographic photoconduct...
- Patent number 4,390,608
- Issue date Jun 28, 1983
- Ricoh Company, Ltd.
- Mitsuru Hashimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY