Tetsuya Ohtsuki

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Semiconductor memory device
- Patent number 6,249,477
- Issue date Jun 19, 2001
- NEC Corporation
- Tetsuya Ohtsuki
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for erasing and verifying nonvolatile semiconductor memory
- Patent number 5,668,759
- Issue date Sep 16, 1997
- NEC Corporation
- Tetsuya Ohtsuki
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor device equipped with simple stable switching circuit...
- Patent number 5,592,430
- Issue date Jan 7, 1997
- NEC Corporation
- Tetsuya Ohtsuki
- G11 - INFORMATION STORAGE
Information Patent Grant
Memory data protection for a ferroelectric memory
- Patent number 5,574,679
- Issue date Nov 12, 1996
- NEC Corporation
- Tetsuya Ohtsuki
- G11 - INFORMATION STORAGE