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Keizo YASUDA
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Kanagawa, JP
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Patents Grants
last 30 patents
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Patent Grant
Print/copy control system including a processing unit with a displa...
Patent number
8,705,058
Issue date
Apr 22, 2014
Ricoh Company, Ltd.
Keizo Yasuda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Image forming apparatus, fixing unit, and image forming method with...
Patent number
8,131,198
Issue date
Mar 6, 2012
Ricoh Co., Ltd.
Kenji Ishii
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus capable of erasing an image recorded in a s...
Patent number
5,400,123
Issue date
Mar 21, 1995
Ricoh Company, Ltd.
Masumi Sato
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
PRINT/COPY CONTROL SYSTEM
Publication number
20110317196
Publication date
Dec 29, 2011
RICOH COMPANY, LTD.
Keizo YASUDA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Image forming apparatus, fixing unit, and image forming method with...
Publication number
20070014600
Publication date
Jan 18, 2007
Ricoh Co., LTD.
Kenji Ishii
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY