Takeo Iwama

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Kawasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical spectrum analyzer and optical spectrum detecting method
- Patent number 6,972,839
- Issue date Dec 6, 2005
- Fujitsu Limited
- Takeo Iwama
- G01 - MEASURING TESTING
Information Patent Grant
Optical spectrum analyzer and optical spectrum detecting method
- Patent number 6,687,001
- Issue date Feb 3, 2004
- Fujitsu Limited
- Takeo Iwama
- G01 - MEASURING TESTING
Information Patent Grant
Data decision circuit used in optical parallel receiving module, op...
- Patent number 5,652,767
- Issue date Jul 29, 1997
- Fujitsu Limited
- Tetsuya Kiyonaga
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multicore optical connector
- Patent number 5,241,612
- Issue date Aug 31, 1993
- Fujitsu Limited
- Takeo Iwama
- G02 - OPTICS
Information Patent Grant
Fiber-optic gyro
- Patent number 4,621,925
- Issue date Nov 11, 1986
- Fujitsu Limited
- Shigefumi Masuda
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Wavelength division multiplexing optical monitor
- Publication number 20070292078
- Publication date Dec 20, 2007
- FUJITSU LIMITED
- Takeo Iwama
- G02 - OPTICS
Information Patent Application
Optical spectrum analyzer and optical spectrum detecting method
- Publication number 20040075832
- Publication date Apr 22, 2004
- FUJITSU LIMITED
- Takeo Iwama
- G01 - MEASURING TESTING
Information Patent Application
Optical spectrum analyzer and optical spectrum detecting method
- Publication number 20020131042
- Publication date Sep 19, 2002
- FUJITSU LIMITED
- Takeo Iwama
- G01 - MEASURING TESTING