Hiroshi Takegawa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Communication management apparatus, program, communication manageme...
- Patent number 9,692,608
- Issue date Jun 27, 2017
- Ricoh Company, Ltd.
- Hiroshi Takegawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Full-text search device performing merge processing by using full-t...
- Patent number 7,730,069
- Issue date Jun 1, 2010
- Ricoh Company, Ltd.
- Kensaku Yamamoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Full-text search device performing merge processing by using full-t...
- Patent number 7,644,097
- Issue date Jan 5, 2010
- Ricoh Company, Ltd.
- Kensaku Yamamoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Document retrieval apparatus retrieving document data using calcula...
- Patent number 5,680,612
- Issue date Oct 21, 1997
- Ricoh Company, Ltd.
- Kazushige Asada
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
COMMUNICATION MANAGEMENT APPARATUS, PROGRAM, COMMUNICATION MANAGEME...
- Publication number 20150150105
- Publication date May 28, 2015
- RICOH COMPANY, LTD.
- Hiroshi TAKEGAWA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Full-text search device performing merge processing by using full-t...
- Publication number 20070136258
- Publication date Jun 14, 2007
- Kensaku Yamamoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Full-text search device performing merge processing by using full-t...
- Publication number 20070118543
- Publication date May 24, 2007
- Kensaku Yamamoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Full-text search device performing merge processing by using full-t...
- Publication number 20040006555
- Publication date Jan 8, 2004
- Kensaku Yamamoto
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Database controlling system
- Publication number 20030220950
- Publication date Nov 27, 2003
- Takuya Hiraoka
- G06 - COMPUTING CALCULATING COUNTING