Kenichiro Takahashi

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical device
- Patent number 9,885,837
- Issue date Feb 6, 2018
- Sumitomo Electric Industries Ltd.
- Hidehisa Tazawa
- G02 - OPTICS
Information Patent Grant
Wavelength selective switch
- Patent number 9,596,526
- Issue date Mar 14, 2017
- Sumitomo Electric Industries, Ltd
- Manabu Shiozaki
- G02 - OPTICS
Information Patent Grant
Wavelength selective switch
- Patent number 9,467,757
- Issue date Oct 11, 2016
- Sumitomo Electric Industries, Ltd
- Kenichiro Takahashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength selective switch
- Patent number 9,372,311
- Issue date Jun 21, 2016
- Sumitomo Electric Industries, Ltd
- Hidehisa Tazawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical device
- Patent number 9,182,601
- Issue date Nov 10, 2015
- Sumitomo Electric Industries, Ltd.
- Akira Inoue
- G02 - OPTICS
Information Patent Grant
Wavelength selective switch
- Patent number 9,116,414
- Issue date Aug 25, 2015
- Sumitomo Electric Industries, Ltd
- Hidehisa Tazawa
- G02 - OPTICS
Information Patent Grant
Optical fiber cable
- Patent number 8,983,256
- Issue date Mar 17, 2015
- Sumitomo Electric Industries, Ltd.
- Kazuhisa Konishi
- G02 - OPTICS
Information Patent Grant
Optical multiplexer/demultiplexer and optical communication system
- Patent number 7,457,497
- Issue date Nov 25, 2008
- Sumitomo Electric Industries, Ltd.
- Michiko Takushima
- G02 - OPTICS
Information Patent Grant
Optical multiplexer/demultiplexer, optical communication system and...
- Patent number 7,277,613
- Issue date Oct 2, 2007
- Sumitomo Electric Indutries. Ltd.
- Michiko Takushima
- G02 - OPTICS
Information Patent Grant
Optical fiber
- Patent number 7,212,717
- Issue date May 1, 2007
- Sumitomo Electric Industries, Ltd.
- Tatsuhiko Saito
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Optical device control apparatus and optical device control method
- Patent number 7,110,636
- Issue date Sep 19, 2006
- Sumitomo Electric Industries, Ltd.
- Kenichiro Takahashi
- G02 - OPTICS
Information Patent Grant
Optical device, optical module, optical amplifier, and optical tran...
- Patent number 6,898,002
- Issue date May 24, 2005
- Sumitomo Electric Industries, Ltd.
- Masayuki Shigematsu
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL DEVICE
- Publication number 20160306116
- Publication date Oct 20, 2016
- Sumitomo Electric Industries, Ltd.
- Hidehisa Tazawa
- G02 - OPTICS
Information Patent Application
WAVELENGTH SELECTIVE SWITCH
- Publication number 20150358698
- Publication date Dec 10, 2015
- Sumitomo Electric Industries, Ltd.
- Kenichiro TAKAHASHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WAVELENGTH SELECTIVE SWITCH
- Publication number 20150358699
- Publication date Dec 10, 2015
- Sumitomo Electric Industries, Ltd.
- Manabu SHIOZAKI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WAVELENGTH SELECTIVE SWITCH
- Publication number 20150078748
- Publication date Mar 19, 2015
- Sumitomo Electric Industries, Ltd.
- Hidehisa TAZAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WAVELENGTH SELECTIVE SWITCH
- Publication number 20140268305
- Publication date Sep 18, 2014
- Sumitomo Electric Industries, Ltd.
- Hidehisa TAZAWA
- G02 - OPTICS
Information Patent Application
OPTICAL FIBER CABLE
- Publication number 20140050448
- Publication date Feb 20, 2014
- Sumitomo Electric Industries, Ltd.
- Kazuhisa Konishi
- G02 - OPTICS
Information Patent Application
OPTICAL DEVICE
- Publication number 20120328238
- Publication date Dec 27, 2012
- Sumitomo Electric Industries, Ltd.
- Akira INOUE
- G02 - OPTICS
Information Patent Application
Optical fiber
- Publication number 20060159410
- Publication date Jul 20, 2006
- Tatsuhiko Saito
- G02 - OPTICS
Information Patent Application
Optical multiplexer/demultiplexer, optical communication system and...
- Publication number 20060029328
- Publication date Feb 9, 2006
- Michiko Takushima
- G02 - OPTICS
Information Patent Application
Optical multiplexer/demultiplexer and optical communication system
- Publication number 20060029329
- Publication date Feb 9, 2006
- Michiko Takushima
- G02 - OPTICS
Information Patent Application
Optical device control apparatus and optical device control method
- Publication number 20050025413
- Publication date Feb 3, 2005
- Kenichiro Takahashi
- G02 - OPTICS
Information Patent Application
Optical device, optical module, optical amplifier, and optical tran...
- Publication number 20030053197
- Publication date Mar 20, 2003
- Masayuki Shigematsu
- G02 - OPTICS
Information Patent Application
Optical add/drop multiplexer apparatus, method of controlling the s...
- Publication number 20010030786
- Publication date Oct 18, 2001
- SUMITOMO ELECTRIC INDUSTRIES, LTD.
- Kenichiro Takahashi
- G02 - OPTICS

Kenichiro Takahashi

Person

Patents Grantslast 30 patents

Optical device

Wavelength selective switch

Wavelength selective switch

Wavelength selective switch

Optical device

Wavelength selective switch

Optical fiber cable

Optical multiplexer/demultiplexer and optical communication system

Optical multiplexer/demultiplexer, optical communication system and...

Optical fiber

Optical device control apparatus and optical device control method

Optical device, optical module, optical amplifier, and optical tran...

Patents Applicationslast 30 patents

OPTICAL DEVICE

WAVELENGTH SELECTIVE SWITCH

WAVELENGTH SELECTIVE SWITCH

WAVELENGTH SELECTIVE SWITCH

WAVELENGTH SELECTIVE SWITCH

OPTICAL FIBER CABLE

OPTICAL DEVICE

Optical fiber

Optical multiplexer/demultiplexer, optical communication system and...

Optical multiplexer/demultiplexer and optical communication system

Optical device control apparatus and optical device control method

Optical device, optical module, optical amplifier, and optical tran...

Optical add/drop multiplexer apparatus, method of controlling the s...