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Noboru Edagawa
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Saitama, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Method for dynamically establishing logical link in PON systems and...
Patent number
7,558,482
Issue date
Jul 7, 2009
KDDI Corporation
Keiji Tanaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method to provide caller's location in IP phone system, optical tra...
Patent number
7,551,854
Issue date
Jun 23, 2009
KDDI Corporation
Yukio Horiuchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical amplifier having various control circuitry
Patent number
6,867,908
Issue date
Mar 15, 2005
Mitsubishi Denki Kabushiki Kaisha
Aritomo Uemura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical TDM multiplexer, optical TDM demultiplexer, WDM/TDM convert...
Patent number
6,775,478
Issue date
Aug 10, 2004
DDI Corporation
Masatoshi Suzuki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission system, optical transmission line and optical...
Patent number
6,768,872
Issue date
Jul 27, 2004
KDD Corporation
Takehiro Tsuritani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical fiber transmission line
Patent number
6,754,420
Issue date
Jun 22, 2004
KDDI Submarine Cable Systems Inc.
Takehiro Tsuritani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission line
Patent number
6,748,178
Issue date
Jun 8, 2004
DDI Corporation
Takayuki Miyakawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission system, its method, and optical amplification...
Patent number
6,744,989
Issue date
Jun 1, 2004
KDDI Corporation
Takehiro Tsuritani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
WDM optical transmission system and an optical transmission line th...
Patent number
6,744,990
Issue date
Jun 1, 2004
KDD Corporation
Masatoshi Suzuki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Pumping light generator and fiber Raman amplifier
Patent number
6,728,437
Issue date
Apr 27, 2004
KDD Submarine Cable Systems Inc.
Noboru Edagawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical amplifier having various control circuitry
Patent number
6,614,588
Issue date
Sep 2, 2003
Mitsubishi Denki Kabushiki Kaisha
Aritomo Uemura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Dispersion compensating optical transmission line and system
Patent number
6,594,428
Issue date
Jul 15, 2003
KDD Corporation
Keiji Tanaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Soliton pulse compression optical fiber and method for making solit...
Patent number
6,549,711
Issue date
Apr 15, 2003
Shin-Etsu Chemical Co., Ltd.
Tadakatsu Shimada
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Optical digital regenerator
Patent number
6,532,091
Issue date
Mar 11, 2003
KDD Corporation
Tetsuya Miyazaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Raman amplifier
Patent number
6,519,078
Issue date
Feb 11, 2003
KDD Submarine Cable Systems, Inc.
Takayuki Miyakawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical waveform shaper
Patent number
6,515,793
Issue date
Feb 4, 2003
DDI Corporation
Noboru Edagawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical amplifying transmission system and optical amplifier
Patent number
6,504,638
Issue date
Jan 7, 2003
KDD Corporation
Keiji Tanaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmitting apparatus
Patent number
6,459,518
Issue date
Oct 1, 2002
KDD Corporation
Masatoshi Suzuki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical pulse position detecting circuit and an optical pulse gener...
Patent number
6,445,478
Issue date
Sep 3, 2002
Mitsubishi Denki Kabushiki Kaisha
Katsuhiro Shimizu
G02 - OPTICS
Information
Patent Grant
Multi-wavelength light source and discrete-wavelength-variable ligh...
Patent number
6,331,907
Issue date
Dec 18, 2001
Kokusai Denshin Denwa Kabushiki-Kaisha
Tetsuya Miyazaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multi-wavelength light source and discrete-wavelength-variable ligh...
Patent number
6,285,477
Issue date
Sep 4, 2001
Kokusai Denshin Denwa Kabushiki-Kaisha
Tetsuya Miyazaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical pulse position detecting circuit and an optical pulse gener...
Patent number
6,236,488
Issue date
May 22, 2001
Mitsubishi Denki Kabushiki Kaisha
Katsuhiro Shimizu
G02 - OPTICS
Information
Patent Grant
Multi-wavelength light source and discrete-wavelength-variable ligh...
Patent number
6,219,163
Issue date
Apr 17, 2001
Kokusai Denshin Denwa Kabushiki-Kaisha
Tetsuya Miyazaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multi-wavelength light source and discrete-wavelength-variable ligh...
Patent number
6,215,566
Issue date
Apr 10, 2001
Kokusai Denshin Denwa Kabushiki-Kaisha
Tetsuya Miyazaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical amplifying transmission system and optical amplifying repeater
Patent number
6,188,510
Issue date
Feb 13, 2001
KDD Corporation
Noboru Edagawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical amplifying transmission system and optical amplifier
Patent number
6,115,173
Issue date
Sep 5, 2000
KDD Corporation
Keiji Tanaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Gain equalizing apparatus
Patent number
6,091,538
Issue date
Jul 18, 2000
Kokusai Denshin Denwa Kabushiki Kaisha
Noriyuki Takeda
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wavelength-division multiplexing optical transmission system
Patent number
6,021,235
Issue date
Feb 1, 2000
Kokusai Denshin Denwa Kabushiki Kaisha
Shu Yamamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission device, WDM optical transmission apparatus, an...
Patent number
6,005,702
Issue date
Dec 21, 1999
Kokusai Denshin Denwa Kabushiki Kaisha
Masatoshi Suzuki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission system and optical repeater
Patent number
5,966,228
Issue date
Oct 12, 1999
Kokusai Denshin Denwa Kabushiki Kaisha
Shigeyuki Akiba
G02 - OPTICS
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL COMMUNICATION NETWORK SYSTEM, PARENT STATION OPTICAL COMMUN...
Publication number
20090263133
Publication date
Oct 22, 2009
MITSUBISHI ELECTRIC CORPORATION
Junichi Nakagawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method to Provide Caller's Location in IP Phone System, Optical Tra...
Publication number
20080279555
Publication date
Nov 13, 2008
Yukio Horiuchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method for dynamically establishing logical link in PON systems and...
Publication number
20060083245
Publication date
Apr 20, 2006
Keiji Tanaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method to provide caller's location in IP phone system, optical tra...
Publication number
20050286893
Publication date
Dec 29, 2005
Yukio Horiuchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Control method of xDSL modem and xDSL modem
Publication number
20050185705
Publication date
Aug 25, 2005
Keiji Tanaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical transmission system and optical transmitter and methods the...
Publication number
20040052532
Publication date
Mar 18, 2004
Itsuro Morita
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method and system for monitoring distributed raman optical transmis...
Publication number
20040032642
Publication date
Feb 19, 2004
Kaoru Imai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical amplifier having various control circuitry
Publication number
20030184850
Publication date
Oct 2, 2003
Mitsubishi Denki Kabushiki Kaisha
Aritomo Uemura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Dispersion compensating optical transmission line and optical trans...
Publication number
20020131711
Publication date
Sep 19, 2002
Keiji Tanaka
G02 - OPTICS
Information
Patent Application
Optical TDM multiplexer, optical TDM demultiplexer, WDM/TDM convert...
Publication number
20020126346
Publication date
Sep 12, 2002
Masatoshi Suzuki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical fiber transmission line
Publication number
20020118936
Publication date
Aug 29, 2002
Takehiro Tsuritani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical transmitter
Publication number
20020063920
Publication date
May 30, 2002
Itsuro Morita
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical transmission system, its method, and optical amplification...
Publication number
20020003647
Publication date
Jan 10, 2002
Takehiro Tsuritani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Raman amplifier
Publication number
20020001123
Publication date
Jan 3, 2002
Takayuki Miyakawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Pumping light generator and fiber raman amplifier
Publication number
20010053264
Publication date
Dec 20, 2001
Noboru Edagawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Optical transmission line
Publication number
20010021291
Publication date
Sep 13, 2001
Takayuki Miyakawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MULTI-WAVELENGTH LIGHT SOURCE AND DISCRETE-WAVELENGTH-VARIABLE LIGH...
Publication number
20010012144
Publication date
Aug 9, 2001
TETSUYA MIYAZAKI
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Optical pulse position detecting circuit and an optical pulse gener...
Publication number
20010009469
Publication date
Jul 26, 2001
Mitsubishi Denki Kabushiki Kaisha
Katsuhiro Shimizu
G01 - MEASURING TESTING
Information
Patent Application
Optical waveform shaper
Publication number
20010005276
Publication date
Jun 28, 2001
Noboru Edagawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE