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Patents Grants
last 30 patents
Information
Patent Grant
Method and system for extending coverage of WLAN access points via...
Patent number
7,650,112
Issue date
Jan 19, 2010
Panasonic Corporation
Kuniaki Utsumi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless communication system
Patent number
7,460,829
Issue date
Dec 2, 2008
Panasonic Corporation
Kuniaki Utsumi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Low-cost optical burst transmission system, apparatus, and method
Patent number
7,076,166
Issue date
Jul 11, 2006
Matsushita Electric Industrial Co., Ltd.
Masaru Fuse
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
FM modulator
Patent number
6,909,855
Issue date
Jun 21, 2005
Matsushita Electric Industrial Co., Ltd.
Masaru Fuse
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
FM modulator
Patent number
6,687,465
Issue date
Feb 3, 2004
Matsushita Electric Industrial Co., Ltd.
Masaru Fuse
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
FM modulator
Patent number
6,512,621
Issue date
Jan 28, 2003
Matsushita Electric Industrial Co., Ltd.
Masaru Fuse
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Optical transmitter-receiver
Patent number
6,459,519
Issue date
Oct 1, 2002
Matsushita Electric Industrial Co., Ltd.
Hiroyuki Sasai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission device and system
Patent number
6,271,942
Issue date
Aug 7, 2001
Matsushita Electric Industrial Co., Ltd.
Hiroyuki Sasai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission method, error rate evaluation method applied i...
Patent number
6,118,479
Issue date
Sep 12, 2000
Matsushita Electric Industrial Co., Ltd.
Kazuki Maeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmitter and optical transmission system using the same
Patent number
6,078,412
Issue date
Jun 20, 2000
Matsushita Electric Industrial Co., Ltd.
Masaru Fuse
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
FM modulation device
Patent number
5,973,820
Issue date
Oct 26, 1999
Matsushita Electric Industrial Co., Ltd.
Masaru Fuse
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Catv system in which chanel selection signal is transmitted from th...
Patent number
5,729,281
Issue date
Mar 17, 1998
Matsushita Electric Industrial Co., Ltd.
Kuniaki Utsumi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for measuring distance between reflection points along light...
Patent number
5,644,389
Issue date
Jul 1, 1997
Matsushita Electric Industrial Co., Ltd.
Hiroaki Yamamoto
G01 - MEASURING TESTING
Information
Patent Grant
Image signal transmission apparatus for repeatedly reproducing and...
Patent number
5,574,569
Issue date
Nov 12, 1996
Matsushita Electric Industrial Co., Ltd.
Kuniaki Utsumi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Picture image distributing apparatus provided within passenger movi...
Patent number
5,539,657
Issue date
Jul 23, 1996
Matsushita Electric Industrial Co., Ltd.
Kuniaki Utsumi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Fiber optic communication terminal, fiber optic communication syste...
Patent number
5,532,865
Issue date
Jul 2, 1996
Matsushita Electric Industrial Co., Ltd.
Kuniaki Utsumi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Peak compression circuit and light transmitter
Patent number
5,519,530
Issue date
May 21, 1996
Matsushita Electric Industrial Co., Ltd.
Kuniaki Utsumi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Light receiving module for SCM transmission
Patent number
5,490,227
Issue date
Feb 6, 1996
Matsushita Electric Industrial Co., Inc.
Manabu Tanabe
G02 - OPTICS
Information
Patent Grant
Optical disc, an image signal transmitting apparatus utilizing the...
Patent number
5,432,767
Issue date
Jul 11, 1995
Matsushita Electric Industrial Co., Ltd.
Kuniaki Utsumi
G11 - INFORMATION STORAGE
Information
Patent Grant
Cable broadcasting system and the transmission center for on demand...
Patent number
5,339,315
Issue date
Aug 16, 1994
Matsushita Electric Industrial Co., Ltd.
Kazuki Maeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Pay-channel transmission system for CATV
Patent number
5,204,767
Issue date
Apr 20, 1993
Matsushita Electric Industrial Co., Ltd.
Hiroaki Nakata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for multiplexing digital signals
Patent number
4,644,536
Issue date
Feb 17, 1987
Matsushita Electric Industrial Co., Ltd.
Kuniaki Utsumi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
Optical fiber radio transmission system, transmission device, and r...
Publication number
20060239630
Publication date
Oct 26, 2006
Kazutoshi Hase
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Wireless communication system
Publication number
20060045054
Publication date
Mar 2, 2006
Kuniaki Utsumi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Radio communication system
Publication number
20050266797
Publication date
Dec 1, 2005
Kuniaki Utsumi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
FM modulator
Publication number
20040126121
Publication date
Jul 1, 2004
Masaru Fuse
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Bi-directional optical transmission system, and master and slave st...
Publication number
20030161637
Publication date
Aug 28, 2003
Hiroaki Yamamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
FM modulator
Publication number
20030067661
Publication date
Apr 10, 2003
Masaru Fuse
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Low-cost optical burst transmission system, apparatus, and method
Publication number
20030030877
Publication date
Feb 13, 2003
Masaru Fuse
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical transmitter-receiver
Publication number
20030030868
Publication date
Feb 13, 2003
Hiroyuki Sasai
H04 - ELECTRIC COMMUNICATION TECHNIQUE