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Naoki Tsumura
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Kawasaki, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Wireless communication system and terminal-device authentication me...
Patent number
9,094,826
Issue date
Jul 28, 2015
Ricoh Company, Limited
Naoki Tsumura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Information processor configured to detect available space in a sto...
Patent number
7,698,484
Issue date
Apr 13, 2010
Ricoh Co., Ltd.
Junichi Ikeda
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
High speed serial switch fabric performing mapping of traffic class...
Patent number
7,664,904
Issue date
Feb 16, 2010
Ricoh Company, Limited
Koji Oshikiri
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Communication terminal and facsimile apparatus connected to an anal...
Patent number
7,007,182
Issue date
Feb 28, 2006
Ricoh Company, Ltd.
Naoki Tsumura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Telecommunication apparatus having a capability of translation
Patent number
5,701,497
Issue date
Dec 23, 1997
Ricoh Company, Ltd.
Satoshi Yamauchi
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
Device for processing digital signal in audio-frequency bandwidth
Patent number
4,989,232
Issue date
Jan 29, 1991
Ricoh Company, Ltd.
Naoki Tsumura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Facsimile machine having an output level adjusting function
Patent number
4,868,852
Issue date
Sep 19, 1989
Ricoh Company, Ltd.
Naoki Tsumura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
SYSTEM, COMMUNICATION APPARATUS, AND COMMUNICATION METHOD
Publication number
20150332060
Publication date
Nov 19, 2015
RICOH COMPANY, LTD.
Naoki Tsumura
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
WIRELESS COMMUNICATION SYSTEM AND TERMINAL-DEVICE AUTHENTICATION ME...
Publication number
20140157388
Publication date
Jun 5, 2014
Naoki Tsumura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING SYSTEM, AN...
Publication number
20070211746
Publication date
Sep 13, 2007
Koji Oshikiri
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Information processor
Publication number
20070067551
Publication date
Mar 22, 2007
Junichi Ikeda
G06 - COMPUTING CALCULATING COUNTING