Isao Kojima

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Aichi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical attenuator
- Patent number 7,336,418
- Issue date Feb 26, 2008
- FDK Corporation
- Hirotaka Kawai
- G02 - OPTICS
Information Patent Grant
Reflective variable light attenuator
- Patent number 7,024,073
- Issue date Apr 4, 2006
- FDK Corporation
- Teruhisa Sahashi
- G02 - OPTICS
Information Patent Grant
Faraday rotation device and optical device using same
- Patent number 7,006,273
- Issue date Feb 28, 2006
- FDK Corporation
- Teruhisa Sahashi
- G02 - OPTICS
Information Patent Grant
Farady rotation device and optical device comprising it
- Patent number 6,876,480
- Issue date Apr 5, 2005
- FDK Corporation
- Teruhisa Sahashi
- G02 - OPTICS
Information Patent Grant
Variable optical attenuator
- Patent number 6,870,675
- Issue date Mar 22, 2005
- FDK Corporation
- Keisuke Ikeda
- G02 - OPTICS
Information Patent Grant
Building and construction method therefor
- Patent number 6,745,533
- Issue date Jun 8, 2004
- Tokyo Electric Power Company, Inc.
- Toshio Yamashita
- G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING

Patents Applicationslast 30 patents

Information Patent Application
Faraday rotation device and optical device using same
- Publication number 20050141075
- Publication date Jun 30, 2005
- Teruhisa Sahashi
- G02 - OPTICS
Information Patent Application
Reflective variable light attenuator
- Publication number 20040234227
- Publication date Nov 25, 2004
- Teruhisa Sahashi
- G02 - OPTICS
Information Patent Application
Farady rotation device and optical device comprising it
- Publication number 20040027637
- Publication date Feb 12, 2004
- Teruhisa Sahashi
- G02 - OPTICS
Information Patent Application
Variable optical attenuator
- Publication number 20030058533
- Publication date Mar 27, 2003
- Keisuke Ikeda
- G02 - OPTICS
Information Patent Application
Building and construction method therefor
- Publication number 20030024202
- Publication date Feb 6, 2003
- Tokyo Electric Power Company, Inc.
- Toshio Yamashita
- G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING