Hiroyoshi Fukasawa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical filter and display apparatus with the same
- Patent number 7,329,981
- Issue date Feb 12, 2008
- Kabushiki Kaisha Toshiba
- Norihisa Nakao
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode-ray tube and method for manufacturing the same
- Patent number 6,570,317
- Issue date May 27, 2003
- Kabushiki Kaisha Toshiba
- Yoshinori Takahashi
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Optical filter and display apparatus with the same
- Publication number 20050179357
- Publication date Aug 18, 2005
- Kabushiki Kaisha Toshiba
- Norihisa Nakao
- G02 - OPTICS