Koji Okamura

Person

Kakogawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Solution doping method of making an optical amplifying fiber
- Patent number 6,408,652
- Issue date Jun 25, 2002
- Fujitsu Limited
- Koji Okamura
- G02 - OPTICS
Information Patent Grant
Optically amplifying fiber and optical fiber amplifier
- Patent number 5,970,198
- Issue date Oct 19, 1999
- Fujitsu Limited
- Shinya Inagaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical amplifying fiber and process of producing the same
- Patent number 5,930,436
- Issue date Jul 27, 1999
- Fujitsu Limited
- Koji Okamura
- G02 - OPTICS
Information Patent Grant
Method of manufacturing an optical module for wavelength division m...
- Patent number 5,496,390
- Issue date Mar 5, 1996
- Fujitsu Limited
- Tadao Arima
- G02 - OPTICS
Information Patent Grant
Method for fabricating star coupler for interconnecting optical fib...
- Patent number 5,454,057
- Issue date Sep 26, 1995
- Fujitsu Limited
- Tadao Arima
- G02 - OPTICS
Information Patent Grant
Polarization-splitting fiber coupler and method of making same
- Patent number 5,420,949
- Issue date May 30, 1995
- Fujitsu Limited
- Tadao Arima
- G02 - OPTICS
Information Patent Grant
Planar wave guide type optical amplifier
- Patent number 5,381,262
- Issue date Jan 10, 1995
- Fujitsu Limited
- Tadao Arima
- G02 - OPTICS
Information Patent Grant
Waveguide type optical device and method for manufacturing the same
- Patent number 5,299,276
- Issue date Mar 29, 1994
- Fujitsu Limited
- Koji Okamura
- G02 - OPTICS
Information Patent Grant
Photo-semiconductor module employing semi-spherical lens to enhance...
- Patent number 5,023,447
- Issue date Jun 11, 1991
- Fujitsu Limited
- Takayuki Masuko
- G02 - OPTICS
Information Patent Grant
Method of producing an optical fiber
- Patent number 4,149,867
- Issue date Apr 17, 1979
- Fujitsu Limited
- Takeshi Akamatsu
- C03 - GLASS MINERAL OR SLAG WOOL

Koji Okamura

Person

Patents Grantslast 30 patents

Solution doping method of making an optical amplifying fiber

Optically amplifying fiber and optical fiber amplifier

Optical amplifying fiber and process of producing the same

Method of manufacturing an optical module for wavelength division m...

Method for fabricating star coupler for interconnecting optical fib...

Polarization-splitting fiber coupler and method of making same

Planar wave guide type optical amplifier

Waveguide type optical device and method for manufacturing the same

Photo-semiconductor module employing semi-spherical lens to enhance...

Method of producing an optical fiber