Katsufumi Kumano

Follow

Person

Yokohama-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Charging device, and process cartridge and image forming apparatus...
- Patent number 7,715,760
- Issue date May 11, 2010
- Ricoh Company, Ltd.
- Naomi Sugimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Charging device, and process cartridge and image forming apparatus...
- Publication number 20090116872
- Publication date May 7, 2009
- Naomi Sugimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY