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Masaharu Matsumoto
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Kawasaki, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Method of transferring frames of variable length for a passive opti...
Patent number
7,418,009
Issue date
Aug 26, 2008
Fujitsu Limited
Susumu Tominaga
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Communication system
Patent number
7,023,964
Issue date
Apr 4, 2006
Fujitsu Limited
Masaharu Matsumoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Caller information display system and recording medium
Patent number
6,798,872
Issue date
Sep 28, 2004
Fujitsu Limited
Masaharu Matsumoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Sound/data sharing communications system
Patent number
6,351,469
Issue date
Feb 26, 2002
Fujitsu Limited
Keiichi Otani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and device for two-way communication network
Patent number
5,960,005
Issue date
Sep 28, 1999
Fujitsu Limited
Umihiko Moteki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Terminal ID automatic assigning system
Patent number
5,952,934
Issue date
Sep 14, 1999
Fujitsu Limited
Masaharu Matsumoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Exchange system for incoming calls from direct-in lines
Patent number
5,099,511
Issue date
Mar 24, 1992
Fujitsu Limited
Masaharu Matsumoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
Method of transferring frames of variable length for a passive opti...
Publication number
20030095568
Publication date
May 22, 2003
FUJITSU LIMITED
Susumu Tominaga
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Communication system
Publication number
20010025314
Publication date
Sep 27, 2001
FUJITSU LIMITED
Masaharu Matsumoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE