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Takeshi Ukegawa
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Hadano, JP
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last 30 patents
Information
Patent Grant
Image processing apparatus having scanner and method for sharing th...
Patent number
6,128,419
Issue date
Oct 3, 2000
Ricoh Company, Ltd.
Takeshi Ukegawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Facsimile machine with voice answer unit
Patent number
5,305,376
Issue date
Apr 19, 1994
Ricoh Company, Ltd.
Takeshi Ukegawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method of controlling a data terminal equipment for equalizing a tr...
Patent number
5,150,400
Issue date
Sep 22, 1992
Ricoh Company, Ltd.
Takeshi Ukegawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Error-corrected facsimile communication control system
Patent number
5,077,742
Issue date
Dec 31, 1991
Ricoh Company, Ltd.
Naoki Tsumura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Data communication apparatus having a reprogrammable voice memory
Patent number
4,926,463
Issue date
May 15, 1990
Ricoh Company, Ltd.
Takeshi Ukegawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE