Kazuhiro Okamoto

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Yokohama-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical fiber for irradiation-light transfer and light irradiation...
- Patent number 7,561,769
- Issue date Jul 14, 2009
- Sumitomo Electric Industries, Ltd.
- Miyoko Fujimoto
- G02 - OPTICS
Information Patent Grant
Amplification optical fiber and fiber optic amplifier including the...
- Patent number 6,865,019
- Issue date Mar 8, 2005
- Sumitomo Electric Industries, Ltd.
- Soichi Endo
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical fiber
- Patent number 6,731,847
- Issue date May 4, 2004
- Sumitomo Electric Industries, Ltd.
- Takatoshi Kato
- G02 - OPTICS
Information Patent Grant
Optical fiber having a large positive dispersion
- Patent number 6,614,976
- Issue date Sep 2, 2003
- Sumitomo Electric Industries, Ltd.
- Takatoshi Kato
- G02 - OPTICS
Information Patent Grant
Optical fiber
- Patent number 6,337,942
- Issue date Jan 8, 2002
- Sumitomo Electric Industries, Ltd.
- Takatoshi Kato
- G02 - OPTICS
Information Patent Grant
Security system utilizing loosely contained optical fiber
- Patent number 5,416,467
- Issue date May 16, 1995
- Sumitomo Electric Industries, Ltd.
- Junichi Ohta
- G08 - SIGNALLING
Information Patent Grant
Root canal sterilization method
- Patent number 4,979,900
- Issue date Dec 25, 1990
- Sumitomo Electric Industries, Ltd.
- Kazuhiro Okamoto
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

Information Patent Application
Optical Fiber for Irradiation-Light Transfer and Light Irradiation...
- Publication number 20080279523
- Publication date Nov 13, 2008
- Sumitomo Electric Industries, Ltd.
- Miyoko Fujimoto
- G02 - OPTICS
Information Patent Application
Optical fiber
- Publication number 20020106172
- Publication date Aug 8, 2002
- Sumitomo Electric Industries, Ltd.
- Takatoshi Kato
- G02 - OPTICS
Information Patent Application
Amplification optical fiber and fiber optic amplifier including the...
- Publication number 20020081085
- Publication date Jun 27, 2002
- SUMITOMO ELECTRIC INDUSTRIES, LTD.
- Soichi Endo
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Non-reflection optical fiber termination and method of manufacturin...
- Publication number 20010017971
- Publication date Aug 30, 2001
- SUMITOMO ELECTRIC INDUSTRIES, LTD.
- Noriko Iwata
- G02 - OPTICS