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Numazu-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Image forming apparatus
Patent number
7,250,244
Issue date
Jul 31, 2007
Ricoh Company, Ltd.
Yuka Miyamoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus with electrostatic charger
Patent number
7,014,967
Issue date
Mar 21, 2006
Ricoh Company, Ltd.
Yuka Miyamoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photoreceptor, method for manufacturing the pho...
Patent number
6,844,124
Issue date
Jan 18, 2005
Ricoh Company Limited
Hiroshi Ikuno
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus, image forming method, process cartridge, p...
Patent number
6,699,631
Issue date
Mar 2, 2004
Ricoh Company, Ltd.
Yuka Miyamoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photoreceptor, method of evaluating a photoreceptor, and method of...
Patent number
6,649,313
Issue date
Nov 18, 2003
Ricoh Company, Ltd.
Toshiyuki Kabata
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photoreceptor, method for manufacturing the pho...
Patent number
6,641,964
Issue date
Nov 4, 2003
Ricoh Company Limited
Hiroshi Ikuno
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photoreceptor, method of evaluating the photoreceptor, method of pr...
Patent number
6,534,227
Issue date
Mar 18, 2003
Ricoh Company, Ltd.
Toshiyuki Kabata
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
Image forming apparatus
Publication number
20060063079
Publication date
Mar 23, 2006
Yuka Miyamoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus
Publication number
20040151997
Publication date
Aug 5, 2004
Yuka Miyamoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Electrophotographic photoreceptor, method for manufacturing the pho...
Publication number
20040048178
Publication date
Mar 11, 2004
Hiroshi Ikuno
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Photoreceptor, method of evaluating a photoreceptor, and method of...
Publication number
20030175606
Publication date
Sep 18, 2003
Toshiyuki Kabata
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus, image forming method, process cartridge, p...
Publication number
20020160287
Publication date
Oct 31, 2002
Yuka Miyamoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Electrophotographic photoreceptor, method for manufacturing the pho...
Publication number
20020115005
Publication date
Aug 22, 2002
Hiroshi Ikuno
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Photoreceptor, method of evaluting the photoreceptor, method of pro...
Publication number
20020018947
Publication date
Feb 14, 2002
RICOH COMPANY, LTD.
Toshiyuki Kabata
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY