Masao Obara

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Heterojunction bipolar transistor
- Patent number 5,523,594
- Issue date Jun 4, 1996
- Kabushiki Kaisha Toshiba
- Masao Obara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Heterojunction bipolar transistor
- Patent number 5,332,912
- Issue date Jul 26, 1994
- Kabushiki Kaisha Toshiba
- Tetsuro Nozu
- H01 - BASIC ELECTRIC ELEMENTS