Ryuichi Shimizu

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Hitachiota, JP

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Patents Grantslast 30 patents

Information Patent Grant
Electrophotographic photoreceptor and method of producing the same
- Patent number 4,990,418
- Issue date Feb 5, 1991
- Hitachi, Ltd.
- Akio Mukoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic toner comprising lactone-modified epoxy resin
- Patent number 4,978,596
- Issue date Dec 18, 1990
- Hitachi, Ltd.
- Ryuichi Shimizu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
White ink composition for ink-jet printing
- Patent number 4,680,058
- Issue date Jul 14, 1987
- Hitachi, Ltd.
- Ryuichi Shimizu
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...