Naotoshi Shiokawa

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Kamagaya-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical fiber assembly having hermetic seal portion and method for...
- Patent number 6,920,276
- Issue date Jul 19, 2005
- Seikoh Giken Co., Ltd.
- Tsutomu Sakurai
- G02 - OPTICS
Information Patent Grant
Wedged and lensed optical fiber
- Patent number 6,724,959
- Issue date Apr 20, 2004
- Seikoh Giken Co., Ltd.
- Mitsuo Takahashi
- G02 - OPTICS
Information Patent Grant
Eccentric optical fiber connector ferrule and method of manufacturi...
- Patent number 6,715,932
- Issue date Apr 6, 2004
- Seikoh Giken Co., LTD
- Toshiaki Kuroha
- G02 - OPTICS
Information Patent Grant
Optical fiber end surface polishing apparatus
- Patent number 6,165,055
- Issue date Dec 26, 2000
- Seikoh Giken Co., Ltd.
- Mitsuo Takahashi
- G02 - OPTICS
Information Patent Grant
Optical fiber ferrule assembly having angular index showing polariz...
- Patent number 5,668,905
- Issue date Sep 16, 1997
- Seikoh Giken Co., Ltd.
- Mitsuo Takahashi
- G02 - OPTICS
Information Patent Grant
Optical attenuator using an optical fiber and method and apparatus...
- Patent number 5,321,790
- Issue date Jun 14, 1994
- Seikoh Giken Co., Ltd.
- Mitsuo Takahashi
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Optical fiber assembly having hermetic seal portion and method for...
- Publication number 20040037536
- Publication date Feb 26, 2004
- SEIKOH GIKEN Co., Ltd.
- Tsutomu Sakurai
- G02 - OPTICS
Information Patent Application
Eccentric optical fiber connector ferrule and method of manufacturi...
- Publication number 20020061172
- Publication date May 23, 2002
- Toshiaki Kuroha
- G02 - OPTICS