Hiroki Ogiso

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Gamagoori-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Charge control agent, toner using same developer containing the ton...
- Patent number 6,977,129
- Issue date Dec 20, 2005
- Ricoh Company, Ltd.
- Takuya Saito
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Charge control agent and toner using same
- Patent number 6,830,859
- Issue date Dec 14, 2004
- Ricoh Company, Ltd.
- Keiko Shiraishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Charge control agent, toner using same developer containing the ton...
- Publication number 20030162018
- Publication date Aug 28, 2003
- Takuya Saito
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Charge control agent and toner using same
- Publication number 20030077534
- Publication date Apr 24, 2003
- Keiko Shiraishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY