Kenichi Torii

Follow

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Quality monitoring method and apparatus for wavelength division mul...
- Patent number 7,400,830
- Issue date Jul 15, 2008
- Fujitsu Limited
- Kenichi Torii
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Raman amplifier utilizing pump modulation for expanding gain band w...
- Patent number 7,379,233
- Issue date May 27, 2008
- Fujitsu Limited
- Hiroshi Nakamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Raman amplifier and optical transmission system using the same
- Patent number 7,242,519
- Issue date Jul 10, 2007
- Fujitsu Limited
- Kenichi Torii
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Wavelength conversion apparatus
- Patent number 6,879,433
- Issue date Apr 12, 2005
- Japan Science and Technology Agency
- Shinji Yamashita
- G02 - OPTICS
Information Patent Grant
Raman amplifier and optical transmission system
- Patent number 6,671,083
- Issue date Dec 30, 2003
- Fujitsu Limited
- Toshiki Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Raman amplifier
- Publication number 20050063043
- Publication date Mar 24, 2005
- Hiroshi Nakamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Quality monitoring method and apparatus for wavelength division mul...
- Publication number 20040190899
- Publication date Sep 30, 2004
- FUJITSU LIMITED
- Kenichi Torii
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Raman amplifier and optical transmission system using the same
- Publication number 20040190120
- Publication date Sep 30, 2004
- FUJITSU LIMITED
- Kenichi Torii
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Wavelength dispersion compensation system
- Publication number 20040179850
- Publication date Sep 16, 2004
- FUJITSU LIMITED
- Toru Katagiri
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Raman amplifier and optical transmission system
- Publication number 20030117692
- Publication date Jun 26, 2003
- FUJITSU LIMITED
- Toshiki Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE