Hirotomo Ooga

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Patents Grantslast 30 patents

Information Patent Grant
Semiconductor device having protected edges
- Patent number 4,725,874
- Issue date Feb 16, 1988
- Mitsubishi Denki Kabushiki Kaisha
- Hirotomo Ooga
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of making a semiconductor device having protected edges
- Patent number 4,499,657
- Issue date Feb 19, 1985
- Mitsubishi Denki Kabushiki Kaisha
- Hirotomo Ooga
- H01 - BASIC ELECTRIC ELEMENTS