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Tetsuo Sakurai
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Tokyo, JP
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last 30 patents
Information
Patent Grant
Digital synthesizer digital copier and magnification control unit
Patent number
6,628,424
Issue date
Sep 30, 2003
Ricoh Company, Ltd.
Tetsuo Sakurai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Digital synthesizer, digital copier and magnification control unit
Patent number
6,515,767
Issue date
Feb 4, 2003
Ricoh Company, Ltd.
Tetsuo Sakurai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus for controlling a scanning speed of an image scanner
Patent number
6,147,776
Issue date
Nov 14, 2000
Ricoh Company, Ltd.
Tetsuo Sakurai
G02 - OPTICS
Information
Patent Grant
Digital copier including means for erasing digital image data over...
Patent number
5,200,837
Issue date
Apr 6, 1993
Ricoh Company, Ltd.
Tetsuo Sakurai
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Digital copier
Patent number
5,172,244
Issue date
Dec 15, 1992
Ricoh Company, Ltd.
Kazuyuki Nakahara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Image reader for an image forming apparatus
Patent number
5,119,211
Issue date
Jun 2, 1992
Ricoh Company, Ltd.
Tetsuo Sakurai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Digital copier
Patent number
5,051,839
Issue date
Sep 24, 1991
Ricoh Company, Ltd.
Kazuyuki Nakahara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Sheet stripper for an electrostatographic apparatus
Patent number
4,183,653
Issue date
Jan 15, 1980
Ricoh Company, Ltd.
Toyokazu Satomi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY