Yoshihisa Sakai

Person

Kanagawa-ken, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Semiconductor submodule, method for connecting connector and semico...
- Patent number 8,333,517
- Issue date Dec 18, 2012
- Nippon Telegraph and Telephone Corporation
- Hiromasa Tanobe
- G02 - OPTICS
Information Patent Grant
Optical waveband demultiplexer, optical waveband multiplexer, and o...
- Patent number 8,244,133
- Issue date Aug 14, 2012
- National University Corporation
- Ken-ichi Sato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Releasable locking mechanism for optical connector
- Patent number 8,157,454
- Issue date Apr 17, 2012
- Yamaichi Electronics Co., Ltd.
- Toshiyasu Ito
- G02 - OPTICS
Information Patent Grant
Optical packet routing network system based on optical label switch...
- Patent number 7,120,358
- Issue date Oct 10, 2006
- Nippon Telegraph and Telephone Corporation
- Akira Okada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical packet routing network system based on optical label switch...
- Patent number 7,113,701
- Issue date Sep 26, 2006
- Nippon Telegraph and Telephone Corporation
- Akira Okada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Light-controlled light modulator
- Patent number 6,961,169
- Issue date Nov 1, 2005
- Nippon Telegraph and Telephone Corporation
- Yasuo Shibata
- G02 - OPTICS
Information Patent Grant
Optical multiplexing circuit and optical multiplexer
- Patent number 6,842,560
- Issue date Jan 11, 2005
- NTT Electronics Corporation
- Yoshiki Yamauchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical packet routing network system based on optical label switch...
- Patent number 6,782,210
- Issue date Aug 24, 2004
- Nippon Telegraph and Telephone Corporation
- Akira Okada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Light-controlled light modulator
- Patent number 6,753,996
- Issue date Jun 22, 2004
- Nippon Telegraph and Telephone Corporation
- Yasuo Shibata
- G02 - OPTICS
Information Patent Grant
Method and apparatus for stabilizing frequency of semiconductor laser
- Patent number 5,025,448
- Issue date Jun 18, 1991
- Nippon Telegraph & Telephone Corporation
- Shoichi Sudo
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Semiconductor Submodule, Method for Connecting Connector and Semico...
- Publication number 20100074581
- Publication date Mar 25, 2010
- Nippon Telegraph and Telephone Corporation
- Hiromasa Tanobe
- G02 - OPTICS
Information Patent Application
RELEASABLE LOCKING MECHANISM FOR OPTICAL CONNECTOR
- Publication number 20100014813
- Publication date Jan 21, 2010
- Yamaichi Electronics Co., Ltd.
- Toshiyasu Ito
- G02 - OPTICS
Information Patent Application
Optical Waveband Demultiplexer, Optical Waveband Multiplexer, and O...
- Publication number 20090220234
- Publication date Sep 3, 2009
- NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY
- Ken-ichi Sato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DOUBLE-CORE OPTICAL FIBER
- Publication number 20090041415
- Publication date Feb 12, 2009
- Nippon Telegraph and Telephone Corporation
- Hiromasa Tanobe
- G02 - OPTICS
Information Patent Application
Light-controlled light modulator
- Publication number 20040190809
- Publication date Sep 30, 2004
- Nippon Telegraph and Telephone Corporation
- Yasuo Shibata
- G02 - OPTICS
Information Patent Application
Optical packet routing network system based on optical label switch...
- Publication number 20040146300
- Publication date Jul 29, 2004
- Nippon Telegraph and Telephone Corporation
- Akira Okada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical packet routing network system based on optical label switch...
- Publication number 20040141743
- Publication date Jul 22, 2004
- Nippon Telegraph and Telephone Corporation
- Akira Okada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical multiplexing circuit and optical multiplexer
- Publication number 20020126341
- Publication date Sep 12, 2002
- NTT ELECTRONICS CORPORATION and NIPPON TELEGRAPH AND TELEPHONE CORPORATION
- Yoshiki Yamauchi
- G02 - OPTICS
Information Patent Application
Light-controlled light modulator
- Publication number 20020101293
- Publication date Aug 1, 2002
- Nippon Telegraph
- Yasuo Shibata
- G02 - OPTICS

Yoshihisa Sakai

Person

Patents Grantslast 30 patents

Semiconductor submodule, method for connecting connector and semico...

Optical waveband demultiplexer, optical waveband multiplexer, and o...

Releasable locking mechanism for optical connector

Optical packet routing network system based on optical label switch...

Optical packet routing network system based on optical label switch...

Light-controlled light modulator

Optical multiplexing circuit and optical multiplexer

Optical packet routing network system based on optical label switch...

Light-controlled light modulator

Method and apparatus for stabilizing frequency of semiconductor laser

Patents Applicationslast 30 patents

Semiconductor Submodule, Method for Connecting Connector and Semico...

RELEASABLE LOCKING MECHANISM FOR OPTICAL CONNECTOR

Optical Waveband Demultiplexer, Optical Waveband Multiplexer, and O...

DOUBLE-CORE OPTICAL FIBER

Light-controlled light modulator

Optical packet routing network system based on optical label switch...

Optical packet routing network system based on optical label switch...

Optical multiplexing circuit and optical multiplexer

Light-controlled light modulator