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Masaki Asobe
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Atsugi-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical amplifier
Patent number
9,065,243
Issue date
Jun 23, 2015
Nippon Telegraph and Telephone Corporation
Masaki Asobe
G02 - OPTICS
Information
Patent Grant
Wavelength converter and wavelength conversion apparatus
Patent number
7,940,451
Issue date
May 10, 2011
Nippon Telegraph and Telephone Corporation
Masaki Asobe
G02 - OPTICS
Information
Patent Grant
Light source apparatus with modulation function and its driving method
Patent number
7,729,585
Issue date
Jun 1, 2010
NipponTelegraph and Telephone Corporation
Katsuaki Magari
G01 - MEASURING TESTING
Information
Patent Grant
Laser light source
Patent number
7,573,921
Issue date
Aug 11, 2009
Nippon Telegraph and Telephone Corporation
Junji Yumoto
G01 - MEASURING TESTING
Information
Patent Grant
Laser light source
Patent number
7,391,795
Issue date
Jun 24, 2008
Nippon Telegraph and Telephone Corporation
Junji Yumoto
G01 - MEASURING TESTING
Information
Patent Grant
Wavelength converter and wavelength converting apparatus
Patent number
6,806,986
Issue date
Oct 19, 2004
Nippon Telegraph and Telephone Corporation
Masaki Asobe
G02 - OPTICS
Information
Patent Grant
Optical transmitter and optical transmitter control method using va...
Patent number
6,763,197
Issue date
Jul 13, 2004
Nippon Telegraph and Telephone Corporation
Akira Hirano
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL AMPLIFIER DEVICE
Publication number
20150036210
Publication date
Feb 5, 2015
Masaki Asobe
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
LIGHT SOURCE APPARATUS WITH MODULATION FUNCTION AND ITS DRIVING METHOD
Publication number
20100053720
Publication date
Mar 4, 2010
Nippon Telegraph and Telephone Corporation
Katsuaki Magari
G02 - OPTICS
Information
Patent Application
Wavelength Converter and Wavelength Conversion Apparatus
Publication number
20100039699
Publication date
Feb 18, 2010
Nippon Telegraph and Telephone Corporation
Masaki Asobe
G02 - OPTICS
Information
Patent Application
LIGHT SOURCE AND GAS MEASURING DEVICE
Publication number
20090303486
Publication date
Dec 10, 2009
Nippon Telegraph and Telephone Corporation
Katsuaki Magari
G02 - OPTICS
Information
Patent Application
METHOD FOR MANUFACTURING A PERIODICALLY-POLED STRUCTURE
Publication number
20090022903
Publication date
Jan 22, 2009
Nippon Telegraph and Telephone Corporation
Hiroyuki Suzuki
G02 - OPTICS
Information
Patent Application
LASER LIGHT SOURCE
Publication number
20070297465
Publication date
Dec 27, 2007
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Junji Yumoto
G02 - OPTICS
Information
Patent Application
Laser light source
Publication number
20060013270
Publication date
Jan 19, 2006
Nippon Telegraph and Telephone Corporation
Junji Yumoto
G02 - OPTICS
Information
Patent Application
Wavelength converter and wavelength converting apparatus
Publication number
20030231890
Publication date
Dec 18, 2003
Nippon Telegraph and Telephone Corporation
Masaki Asobe
G02 - OPTICS