Yuji Takayanagi

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Insulated gate type semiconductor device in which the reliability a...
- Patent number 5,635,734
- Issue date Jun 3, 1997
- Hitachi, Ltd.
- Yuji Takayanagi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Gate turn-off thyristor and power convertor using the same
- Patent number 5,459,338
- Issue date Oct 17, 1995
- Hitachi, Ltd.
- Yuji Takayanagi
- H01 - BASIC ELECTRIC ELEMENTS