Toshitugu Takekuma

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Ohme, JP

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Patents Grantslast 30 patents

Information Patent Grant
Semiconductor memory device with improved substrate arrangement to...
- Patent number 5,805,513
- Issue date Sep 8, 1998
- Hitachi, Ltd.
- Yasushi Takahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor memory device with improved substrate arrangement to...
- Patent number 5,426,613
- Issue date Jun 20, 1995
- Hitachi, Ltd.
- Yasushi Takahashi
- G11 - INFORMATION STORAGE