Yoshiharu Takeuchi

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Koganei, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of making a semiconductor memory device
- Patent number 5,580,810
- Issue date Dec 3, 1996
- Hitachi, Ltd.
- Hisao Katto
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor memory device with additional conductive line to prev...
- Patent number 5,416,347
- Issue date May 16, 1995
- Hitachi, Ltd.
- Hisao Katto
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of making a semiconductor memory device
- Patent number 4,830,977
- Issue date May 16, 1989
- Hitachi, Ltd.
- Hisao Katto
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor memory device with means to prevent word line breakage
- Patent number 4,731,642
- Issue date Mar 15, 1988
- Hitachi, Ltd.
- Hisao Katto
- G11 - INFORMATION STORAGE