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Takeshi Ukai
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Yokohama, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Image forming apparatus with specific document determining module a...
Patent number
7,038,228
Issue date
May 2, 2006
Ricoh Company, Ltd.
Yutaka Hasegawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Specific document determining apparatus including a microwave sensor
Patent number
6,949,757
Issue date
Sep 27, 2005
Ricoh Company, Ltd.
Yutaka Hasegawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Image forming apparatus with specific document module having a micr...
Patent number
6,696,696
Issue date
Feb 24, 2004
Ricoh Company, Ltd.
Yutaka Hasegawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Original-discrimination system for discriminating special document,...
Patent number
6,272,248
Issue date
Aug 7, 2001
Ricoh Company, Ltd.
Takashi Saitoh
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Specific document determining apparatus, image reading apparatus, s...
Patent number
6,025,603
Issue date
Feb 15, 2000
Ricoh Company, Ltd.
Yutaka Hasegawa
G07 - CHECKING-DEVICES
Information
Patent Grant
Original-discrimination system for discriminating special document,...
Patent number
5,751,854
Issue date
May 12, 1998
Ricoh Company, Ltd.
Takashi Saitoh
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Bar code recording device for a paper media system
Patent number
5,696,365
Issue date
Dec 9, 1997
Ricoh Company, Ltd.
Takeshi Ukai
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Special-document discriminating apparatus and managing system for i...
Patent number
5,659,628
Issue date
Aug 19, 1997
Ricoh Company, Ltd.
Michiyoshi Tachikawa
G07 - CHECKING-DEVICES
Information
Patent Grant
Special-document discriminating apparatus and managing system for i...
Patent number
5,652,803
Issue date
Jul 29, 1997
Ricoh Company, Ltd.
Michiyoshi Tachikawa
G07 - CHECKING-DEVICES
Information
Patent Grant
Copier having a security function
Patent number
5,642,199
Issue date
Jun 24, 1997
Ricoh Company, Ltd.
Takeshi Ukai
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Copying apparatus having determination unit for special original an...
Patent number
5,604,596
Issue date
Feb 18, 1997
Ricoh Company, Ltd.
Takeshi Ukai
G11 - INFORMATION STORAGE
Information
Patent Grant
Specific document discriminating apparatus and image reading appara...
Patent number
5,602,939
Issue date
Feb 11, 1997
Richo Company, Ltd.
Tadato Hashiguchi
G07 - CHECKING-DEVICES
Information
Patent Grant
Image forming apparatus which adds identification information to re...
Patent number
5,444,518
Issue date
Aug 22, 1995
Ricoh Company, Ltd.
Tadato Hashiguchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
Specific document determining apparatus, image reading apparatus, s...
Publication number
20040075066
Publication date
Apr 22, 2004
Yutaka Hasegawa
G07 - CHECKING-DEVICES
Information
Patent Application
Image forming apparatus with specific document determining module a...
Publication number
20040046988
Publication date
Mar 11, 2004
Yutaka Hasegawa
G07 - CHECKING-DEVICES