Masahiro Katoh

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Ohta-ku, JP

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Patents Grantslast 30 patents

Information Patent Grant
Image forming apparatus comprising image density detector and toner...
- Patent number 9,696,654
- Issue date Jul 4, 2017
- Ricoh Company, Ltd.
- Masayoshi Nakayama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus including electric charge removing device a...
- Patent number 9,500,978
- Issue date Nov 22, 2016
- Ricoh Company, Ltd.
- Masayoshi Nakayama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 9,488,931
- Issue date Nov 8, 2016
- Ricoh Company, Ltd.
- Makoto Yasuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 9,316,954
- Issue date Apr 19, 2016
- Ricoh Company, Ltd.
- Ken Yoshida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20160291507
- Publication date Oct 6, 2016
- RICOH COMPANY, LTD.
- Masayoshi Nakayama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20160147174
- Publication date May 26, 2016
- Makoto YASUDA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
APPARATUS AND METHOD OF FORMING IMAGE
- Publication number 20160026109
- Publication date Jan 28, 2016
- RICOH COMPANY, LTD.
- Masayoshi Nakayama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20140086605
- Publication date Mar 27, 2014
- Ken YOSHIDA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Optical scanning device and image forming apparatus
- Publication number 20020051272
- Publication date May 2, 2002
- Ricoh Company, Ltd.
- Akira Kojima
- G02 - OPTICS