Shigemi Sasada

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Takarazuka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Semiconductor memory device using high-density and high-speed MOS e...
- Patent number 4,990,999
- Issue date Feb 5, 1991
- Ricoh Company, Ltd.
- Motohiro Oishi
- H01 - BASIC ELECTRIC ELEMENTS