Yukihiro Watsuji

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Suwa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Nonvolatile semiconductor device
- Patent number 5,798,546
- Issue date Aug 25, 1998
- Seiko Epson Corporation
- Yukihiro Watsuji
- G11 - INFORMATION STORAGE
Information Patent Grant
Nonvolatile semiconductor storage system
- Patent number 5,654,920
- Issue date Aug 5, 1997
- Seiko Epson Corporation
- Yukihiro Watsuji
- G11 - INFORMATION STORAGE
Information Patent Grant
Nonvolatile semiconductor storage system
- Patent number 5,574,686
- Issue date Nov 12, 1996
- Seiko Epson Corporation
- Yukihiro Watsuji
- G11 - INFORMATION STORAGE
Information Patent Grant
Nonvolatile semiconductor device to erase with a varying potential...
- Patent number 5,475,249
- Issue date Dec 12, 1995
- Seiko Epson Corporation
- Yukihiro Watsuji
- G11 - INFORMATION STORAGE
Information Patent Grant
Nonvolatile semiconductor storage system
- Patent number 5,432,738
- Issue date Jul 11, 1995
- Seiko Epson Corporation
- Yukihiro Watsuji
- G11 - INFORMATION STORAGE