Hiroshi Koshi

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical fiber collimator
- Patent number 6,980,717
- Issue date Dec 27, 2005
- Nippon Sheet Glass Company, Limited
- Yasuyuki Watanabe
- G02 - OPTICS
Information Patent Grant
Light source-optical fiber coupler
- Patent number 6,862,384
- Issue date Mar 1, 2005
- Nippon Sheet Glass Co., Ltd.
- Hiroshi Koshi
- G02 - OPTICS
Information Patent Grant
Gradient index rod lens, method for manufacturing gradient index ro...
- Patent number 6,771,428
- Issue date Aug 3, 2004
- Nippon Sheet Glass Co., Ltd.
- Masatake Ishikawa
- G02 - OPTICS
Information Patent Grant
Object lens system
- Patent number 6,078,431
- Issue date Jun 20, 2000
- Nippon Sheet Glass Co., Ltd.
- Shigeo Kittaka
- G02 - OPTICS
Information Patent Grant
Method of performing an ion exchange of optical glass
- Patent number 5,139,557
- Issue date Aug 18, 1992
- Nippon Sheet Glass Co., Ltd.
- Shigeo Kittaka
- C03 - GLASS MINERAL OR SLAG WOOL

Patents Applicationslast 30 patents

Information Patent Application
Optical fiber collimator
- Publication number 20050063643
- Publication date Mar 24, 2005
- Nippon Sheet Glass Company, Limited
- Yasuyuki Watanabe
- G02 - OPTICS
Information Patent Application
Light source-optical fiber coupler
- Publication number 20020159695
- Publication date Oct 31, 2002
- Hiroshi Koshi
- G02 - OPTICS
Information Patent Application
Refractive index distribution lens, method for manufacturing refrac...
- Publication number 20020097476
- Publication date Jul 25, 2002
- NIPPON SHEET GLASS CO., LTD.
- Masatake Ishikawa
- G02 - OPTICS