Yutaka Katsuyama

Person

Mito, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical waveguide having diffraction grating area and method of fab...
- Patent number 5,671,308
- Issue date Sep 23, 1997
- Sumitomo Electric Industries, Ltd.
- Akira Inoue
- G02 - OPTICS
Information Patent Grant
Method for identifying an optical fiber using a pattern of reflecte...
- Patent number 5,506,674
- Issue date Apr 9, 1996
- Sumitomo Electric Industries, Ltd.
- Akira Inoue
- G02 - OPTICS
Information Patent Grant
Method for manufacturing a hermetically coated optical fiber
- Patent number 5,348,564
- Issue date Sep 20, 1994
- Sumitomo Electric Industries, Ltd.
- Haruhiko Aikawa
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method for producing hermetic coated optical fiber
- Patent number 5,281,247
- Issue date Jan 25, 1994
- Sumitomo Electric Industries, Ltd.
- Haruhiko Aikawa
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Apparatus for producing hermetic coated optical fiber
- Patent number 5,194,080
- Issue date Mar 16, 1993
- Sumitomo Electric Industries, Ltd.
- Haruhiko Aikawa
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Fiber optical amplifier
- Patent number 5,125,066
- Issue date Jun 23, 1992
- Sumitomo Electric Industries, Ltd.
- Yoichi Ishiguro
- G02 - OPTICS
Information Patent Grant
Optical fiber test method and apparatus
- Patent number 4,659,215
- Issue date Apr 21, 1987
- Nippon Telegraph & Telephone Public Corporation
- Shin Sumida
- G01 - MEASURING TESTING

Yutaka Katsuyama

Person

Patents Grantslast 30 patents

Optical waveguide having diffraction grating area and method of fab...

Method for identifying an optical fiber using a pattern of reflecte...

Method for manufacturing a hermetically coated optical fiber

Method for producing hermetic coated optical fiber

Apparatus for producing hermetic coated optical fiber

Fiber optical amplifier

Optical fiber test method and apparatus