Yukinori Sakuma

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Ibaraki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Shutter mechanism
- Patent number 8,204,402
- Issue date Jun 19, 2012
- Ricoh Company, Limited
- Hideo Yoshizawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having a force-converting mechanism to deta...
- Patent number 7,616,915
- Issue date Nov 10, 2009
- Ricoh Company Ltd.
- Kazuhiro Shimojima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
SHUTTER MECHANISM
- Publication number 20090158667
- Publication date Jun 25, 2009
- Hideo Yoshizawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20080101818
- Publication date May 1, 2008
- Kazuhiro Shimojima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY