Michikazu Shima

Person

Kawasaki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Wavelength-division-multiplexing optical amplifier
- Patent number 6,061,173
- Issue date May 9, 2000
- Fujitsu Limited
- Kazuo Yamane
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical amplifying apparatus
- Patent number 6,055,094
- Issue date Apr 25, 2000
- Fujitsu Limited
- Michikazu Shima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multi-wavelength optical batch amplification apparatus
- Patent number 5,870,217
- Issue date Feb 9, 1999
- Fujitsu Limited
- Hiroyuki Itou
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Auxiliary-signal transmission system
- Patent number 5,841,558
- Issue date Nov 24, 1998
- Fujitsu Limited
- Yuji Tamura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Control apparatus for optical amplifier
- Patent number 5,822,112
- Issue date Oct 13, 1998
- Fujitsu Limited
- Hiroyuki Itou
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Auxiliary-signal transmission system
- Patent number 5,798,857
- Issue date Aug 25, 1998
- Fujitsu Limited
- Yuji Tamura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wavelength-division-multiplexing optical amplifier
- Patent number 5,764,404
- Issue date Jun 9, 1998
- Fujitsu Limited
- Kazuo Yamane
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical amplifier and optical transmission apparatus
- Patent number 5,680,246
- Issue date Oct 21, 1997
- Fujitsu Limited
- Tsukasa Takahashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Auxiliary-signal transmission system
- Patent number 5,625,481
- Issue date Apr 29, 1997
- Fujitsu Limited
- Yuji Tamura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Drive circuit for electronic device
- Patent number 5,604,759
- Issue date Feb 18, 1997
- Fujitsu Limited
- Yuji Miyaki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Michikazu Shima

Person

Patents Grantslast 30 patents

Wavelength-division-multiplexing optical amplifier

Optical amplifying apparatus

Multi-wavelength optical batch amplification apparatus

Auxiliary-signal transmission system

Control apparatus for optical amplifier

Auxiliary-signal transmission system

Wavelength-division-multiplexing optical amplifier

Optical amplifier and optical transmission apparatus

Auxiliary-signal transmission system

Drive circuit for electronic device