Koichi Sumioka

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Nagaokakyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Dye for dye-sensitized solar cell, semiconductor electrode, and dye...
- Patent number 8,383,831
- Issue date Feb 26, 2013
- Mitsubishi Paper Mills Limited
- Masakazu Takata
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Ink-jet recording material and ink for ink-jet recording
- Patent number 6,821,585
- Issue date Nov 23, 2004
- Mitsubishi Paper Mills Limited
- Koichi Sumioka
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Ink-jet recording material
- Patent number 6,607,269
- Issue date Aug 19, 2003
- Mitsubishi Paper Mills Limited
- Koichi Sumioka
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Light absorbing dye for photography
- Patent number 4,904,578
- Issue date Feb 27, 1990
- Mitsubishi Paper Mills, Ltd.
- Akira Tanaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
DYE FOR DYE-SENSITIZED SOLAR CELL, SEMICONDUCTOR ELECTRODE, AND DYE...
- Publication number 20110155241
- Publication date Jun 30, 2011
- Masakazu Takata
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Ink-jet recording material and ink for ink-jet recording
- Publication number 20030072923
- Publication date Apr 17, 2003
- Koichi Sumioka
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Ink-jet recording material
- Publication number 20020140796
- Publication date Oct 3, 2002
- Koichi Sumioka
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS