Tadashi Umegi

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Kitakyushu-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Semiconductor light emitting device and its manufacturing method
- Patent number 6,274,890
- Issue date Aug 14, 2001
- Kabushiki Kaisha Toshiba
- Hiroaki Oshio
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Semiconductor light emitting device and its manufacturing method
- Publication number 20010042865
- Publication date Nov 22, 2001
- Kabushiki Kaisha Toshiba
- Hiroaki Oshio
- H01 - BASIC ELECTRIC ELEMENTS