Hiroshi Sugihara

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical fiber, optical fiber cable, and radiation detecting system...
- Patent number 6,859,607
- Issue date Feb 22, 2005
- Wired Japan Co., Ltd.
- Hiroshi Sugihara
- G01 - MEASURING TESTING
Information Patent Grant
Optical fiber, optical fiber cable, and radiation detecting system...
- Patent number 6,671,451
- Issue date Dec 30, 2003
- Wired Japan Co., Ltd.
- Hiroshi Sugihara
- G01 - MEASURING TESTING
Information Patent Grant
Magnetic recording medium
- Patent number 4,520,076
- Issue date May 28, 1985
- TDK Electronics Co., Ltd.
- Seitoku Saito
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium and apparatus for preparing the same
- Patent number 4,387,136
- Issue date Jun 7, 1983
- TDK Electronics Co., Ltd.
- Seitoku Saito
- G11 - INFORMATION STORAGE
Information Patent Grant
Process for preparing magnetic recording medium
- Patent number 4,343,834
- Issue date Aug 10, 1982
- TDK Electronics Co., Ltd.
- Seitoku Saito
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
LIGHT COLLECTING OPTICAL FIBER, PHOTODETECTION SYSTEM, OPTICAL COUP...
- Publication number 20120032087
- Publication date Feb 9, 2012
- WIRED JAPAN CO., LTD.
- Hiroshi Sugihara
- G02 - OPTICS
Information Patent Application
Optical fiber, optical fiber cable, and radiation detecting system...
- Publication number 20040071433
- Publication date Apr 15, 2004
- WIRED JAPAN CO., LTD.
- Hiroshi Sugihara
- G02 - OPTICS