Shigeki Matsuoka

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Patents Grantslast 30 patents

Information Patent Grant
Sense amplifier for a ROM having a multilevel memory cell
- Patent number 5,012,448
- Issue date Apr 30, 1991
- Ricoh Company, Ltd.
- Shigeki Matsuoka
- G11 - INFORMATION STORAGE
Information Patent Grant
Composite finite impulse response digital filter
- Patent number 4,958,311
- Issue date Sep 18, 1990
- Ricoh Company, Ltd.
- Yukio Kadowaki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Adder having means for reducing propagation time of carry bit
- Patent number 4,949,297
- Issue date Aug 14, 1990
- Ricoh Company, Ltd.
- Shigeki Matsuoka
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Sense circuit
- Patent number 4,751,682
- Issue date Jun 14, 1988
- Ricoh Company, Ltd.
- Shigeki Matsuoka
- G11 - INFORMATION STORAGE
Information Patent Grant
Programming of an EPROM
- Patent number 4,720,816
- Issue date Jan 19, 1988
- Ricoh Company, Ltd.
- Shigeki Matsuoka
- G11 - INFORMATION STORAGE
Information Patent Grant
Power supply switching circuit
- Patent number 4,700,125
- Issue date Oct 13, 1987
- Ricoh Co., Ltd.
- Akira Takata
- G05 - CONTROLLING REGULATING
Information Patent Grant
Power supply switching circuit
- Patent number 4,565,960
- Issue date Jan 21, 1986
- Ricoh Company, Ltd.
- Akira Takata
- G05 - CONTROLLING REGULATING