Tadahiko Hirai

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Patents Grantslast 30 patents

Information Patent Grant
Semiconductor storage device and method for manufacturing the same
- Patent number 6,084,260
- Issue date Jul 4, 2000
- Asahi Kasei Kogyo Kabushiki Kaisha
- Tadahiko Hirai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor storage device and method for manufacturing the same
- Patent number 5,955,755
- Issue date Sep 21, 1999
- Asahi Kasei Kogyo Kabushiki Kaisha
- Tadahiko Hirai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Nitride based semiconductor device and manufacture thereof
- Patent number 5,602,418
- Issue date Feb 11, 1997
- Asahi Kasei Kogyo Kabushiki Kaisha
- Hideaki Imai
- H01 - BASIC ELECTRIC ELEMENTS