Etsushi Obi

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Semiconductor memory device having data erasing mechanism
- Patent number 5,751,636
- Issue date May 12, 1998
- Kabushiki Kaisha Toshiba
- Kiyomi Naruke
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor memory device having data erasing mechanism
- Patent number 5,623,445
- Issue date Apr 22, 1997
- Kabushiki Kaisha Toshiba
- Kiyomi Naruke
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of operating a nonvolatile semiconductor memory device
- Patent number 5,452,248
- Issue date Sep 19, 1995
- Kabushiki Kaisha Toshiba
- Kiyomi Naruke
- G11 - INFORMATION STORAGE