Rumiko Ono

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Image forming apparatus
- Patent number 7,557,823
- Issue date Jul 7, 2009
- Ricoh Company, Ltd.
- Rumiko Ono
- G02 - OPTICS
Information Patent Grant
Optical writing device and image forming apparatus
- Patent number 7,440,001
- Issue date Oct 21, 2008
- Ricoh Company, Ltd.
- Rumiko Ono
- G02 - OPTICS
Information Patent Grant
Lens mounting device
- Patent number 6,985,312
- Issue date Jan 10, 2006
- Ricoh Company, Ltd.
- Takeshi Yamakawa
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Image forming apparatus
- Publication number 20070046766
- Publication date Mar 1, 2007
- Rumiko Ono
- G02 - OPTICS
Information Patent Application
Optical writing device and image forming apparatus
- Publication number 20050012974
- Publication date Jan 20, 2005
- RICOH COMPANY, LTD.
- Rumiko Ono
- G02 - OPTICS
Information Patent Application
Lens mounting device
- Publication number 20040240083
- Publication date Dec 2, 2004
- Takeshi Yamakawa
- G02 - OPTICS
Information Patent Application
Image formation apparatus
- Publication number 20040105079
- Publication date Jun 3, 2004
- Takeshi Yamakawa
- G02 - OPTICS