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Nobuhiro Kikuchi
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Kanagawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Semiconductor optical modulation element
Patent number
11,126,058
Issue date
Sep 21, 2021
Nippon Telegraph and Telephone Corporation
Yoshihiro Ogiso
G02 - OPTICS
Information
Patent Grant
High-frequency line
Patent number
10,522,892
Issue date
Dec 31, 2019
Nippon Telegraph and Telephone Corporation
Nobuhiro Kikuchi
G02 - OPTICS
Information
Patent Grant
Semiconductor optical modulation element
Patent number
10,254,624
Issue date
Apr 9, 2019
Nippon Telegraph and Telephone Corporation
Yoshihiro Ogiso
G02 - OPTICS
Information
Patent Grant
Optical modulator driver circuit and optical transmitter
Patent number
10,243,664
Issue date
Mar 26, 2019
Nippon Telegraph and Telephone Corporation
Munehiko Nagatani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Semiconductor optical modulator and optical modulating apparatus
Patent number
8,401,344
Issue date
Mar 19, 2013
NTT Electronics Corporation
Tadao Ishibashi
G02 - OPTICS
Information
Patent Grant
Semiconductor optical modulator
Patent number
8,031,984
Issue date
Oct 4, 2011
NTT Electronics Corporation
Tadao Ishibashi
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Optical semiconductor device and optical semiconductor integrated c...
Patent number
7,738,520
Issue date
Jun 15, 2010
Nippon Telegraph and Telephone Corporation
Nobuhiro Nunoya
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor optical modulator
Patent number
7,711,214
Issue date
May 4, 2010
Nippon Telegraph and Telephone Corporation
Ken Tsuzuki
G02 - OPTICS
Information
Patent Grant
Optical semiconductor device and optical semiconductor integrated c...
Patent number
7,474,817
Issue date
Jan 6, 2009
Nippon Telegraph and Telephone Corporation
Nobuhiro Nunoya
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical semiconductor device and optical semiconductor integrated c...
Patent number
7,471,864
Issue date
Dec 30, 2008
Nippon Telegraph and Telephone Corporation
Nobuhiro Nunoya
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical amplifier
Patent number
7,262,905
Issue date
Aug 28, 2007
Nippon Telegraph and Telephone Corporation
Yasuo Shibata
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical amplifier
Patent number
7,221,500
Issue date
May 22, 2007
Nippon Telegraph and Telephone Corporation
Yasuo Shibata
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical amplifier
Patent number
7,088,501
Issue date
Aug 8, 2006
Nippon Telegraph and Telephone Corporation
Yasuo Shibata
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
Optical Modulator Module
Publication number
20210341812
Publication date
Nov 4, 2021
Nippon Telegraph and Telephone Corporation
Shigeru Kanazawa
G02 - OPTICS
Information
Patent Application
Semiconductor Optical Modulation Element
Publication number
20210294176
Publication date
Sep 23, 2021
Yoshihiro OGISO
G02 - OPTICS
Information
Patent Application
Optical Modulator
Publication number
20210080795
Publication date
Mar 18, 2021
Nobuhiro Kikuchi
G02 - OPTICS
Information
Patent Application
HIGH-FREQUENCY LINE
Publication number
20180175474
Publication date
Jun 21, 2018
Nippon Telegraph and Telephone Corporation
Nobuhiro Kikuchi
G02 - OPTICS
Information
Patent Application
SEMICONDUCTOR OPTICAL MODULATION ELEMENT
Publication number
20180164654
Publication date
Jun 14, 2018
Nippon Telegraph and Telephone Corporation
Yoshihiro Ogiso
G02 - OPTICS
Information
Patent Application
Optical Modulator Driver Circuit and Optical Transmitter
Publication number
20160087727
Publication date
Mar 24, 2016
Nippon Telegraph and Telephone Corporation
Munehiko Nagatani
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SEMICONDUCTOR OPTICAL MODULATOR AND OPTICAL MODULATING APPARATUS
Publication number
20100296769
Publication date
Nov 25, 2010
Tadao Ishibashi
G02 - OPTICS
Information
Patent Application
SEMICONDUCTOR OPTICAL MODULATOR
Publication number
20100296766
Publication date
Nov 25, 2010
NTT ELECTRONICS CORPORATION
Tadao Ishibashi
G02 - OPTICS
Information
Patent Application
SEMICONDUCTOR OPTICAL MODULATOR
Publication number
20090034904
Publication date
Feb 5, 2009
Nippon Telegraph and Telephone Corporation
Ken Tsuzuki
G02 - OPTICS
Information
Patent Application
OPTICAL SEMICONDUCTOR DEVICE AND OPTICAL SEMICONDUCTOR INTEGRATED C...
Publication number
20070223856
Publication date
Sep 27, 2007
Nippon Telegraph and Telephone Corporation
Nobuhiro Nunoya
G02 - OPTICS
Information
Patent Application
OPTICAL SEMICONDUCTOR DEVICE AND OPTICAL SEMICONDUCTOR INTEGRATED C...
Publication number
20070223857
Publication date
Sep 27, 2007
Nippon Telegraph and Telephone Corporation
Nobuhiro Nunoya
G02 - OPTICS
Information
Patent Application
WAVELENGTH TUNABLE DISTRIBUTED BRAGG REFLECTOR (DBR) LASER
Publication number
20070041415
Publication date
Feb 22, 2007
Nippon Telegraph and Telephone Corporation
Naoki Fujiwara
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Optical amplifier
Publication number
20060268399
Publication date
Nov 30, 2006
Yasuo Shibata
G02 - OPTICS
Information
Patent Application
Optical amplifier
Publication number
20060232851
Publication date
Oct 19, 2006
Yasuo Shibata
G02 - OPTICS
Information
Patent Application
Optical semiconductor device and optical semiconductor in tegrated...
Publication number
20060050752
Publication date
Mar 9, 2006
Nobuhiro Nunoya
G02 - OPTICS
Information
Patent Application
Optical amplifier
Publication number
20030067678
Publication date
Apr 10, 2003
Yasuo Shibata
G02 - OPTICS