Tsutomu Ishikawa

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Kyoto, JP

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Patents Grantslast 30 patents

Information Patent Grant
Semiconductor laser
- Patent number 9,099,841
- Issue date Aug 4, 2015
- Rohm Co., Ltd.
- Tsuguki Noma
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor light emitting device
- Patent number 7,196,347
- Issue date Mar 27, 2007
- Rohm Co., Ltd.
- Tsutomu Ishikawa
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
SEMICONDUCTOR LASER
- Publication number 20150340840
- Publication date Nov 26, 2015
- Rohm Co., Ltd.
- Tsuguki NOMA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR LASER
- Publication number 20110128985
- Publication date Jun 2, 2011
- Rohm Co., Ltd.
- Tsuguki Noma
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
High-Power Red Semiconductor Laser
- Publication number 20090175306
- Publication date Jul 9, 2009
- ROHM CO., LTD.
- Ken Nakahara
- B82 - NANO-TECHNOLOGY
Information Patent Application
Semiconductor light emitting device
- Publication number 20050029528
- Publication date Feb 10, 2005
- ROHM CO., LTD.
- Tsutomu Ishikawa
- H01 - BASIC ELECTRIC ELEMENTS