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Mito, JP
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last 30 patents
Information
Patent Grant
Developing toner for electrophotography and electro-photographic de...
Patent number
7,813,674
Issue date
Oct 12, 2010
Ricoh Company, Ltd.
Junji Kobayashi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus
Patent number
7,570,904
Issue date
Aug 4, 2009
Ricoh Printing Systems, Ltd.
Shigenori Yaguchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic toner and image forming apparatus
Patent number
7,435,519
Issue date
Oct 14, 2008
Ricoh Printing Systems, Ltd.
Shigenori Yaguchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrostatic charge image developing toner, and developer, image f...
Patent number
7,144,667
Issue date
Dec 5, 2006
Ricoh Printing Systems, Ltd.
Tsuneaki Kawanishi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image printer
Patent number
5,634,183
Issue date
May 27, 1997
Hitachi Koki Co., Ltd.
Yosuke Saito
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
Image forming apparatus
Publication number
20090180810
Publication date
Jul 16, 2009
RICOH COMPANY, LTD.
Shigenori Yaguchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus
Publication number
20050271428
Publication date
Dec 8, 2005
Ricoh Printing Systems, Ltd.
Shigenori Yaguchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Electrophotographic toner and image forming apparatus
Publication number
20050164110
Publication date
Jul 28, 2005
Shigenori Yaguchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Developing toner for electrophotography and electro-photographic de...
Publication number
20050158645
Publication date
Jul 21, 2005
Ricoh Printing Systems, Ltd.
Junji Kobayashi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Electrostatic charge image developing toner, and developer, image f...
Publication number
20040175640
Publication date
Sep 9, 2004
Hitachi Printing Solutions, Ltd.
Tsuneaki Kawanishi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Electrostatic charge image developing toner and image forming appar...
Publication number
20040058259
Publication date
Mar 25, 2004
HITACHI PRINTING SOLUTIONS, LTD.
Junji Kobayashi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY