Shin'ichi Ikenaga

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Koganei, JP

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Patents Grantslast 30 patents

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Semiconductor memory device
- Patent number 5,475,692
- Issue date Dec 12, 1995
- Hitachi, Ltd.
- Susumu Hatano
- G11 - INFORMATION STORAGE
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Semiconductor IC device having a voltage conversion circuit which g...
- Patent number 5,426,616
- Issue date Jun 20, 1995
- Hitachi, Ltd.
- Kazuhiko Kajigaya
- G11 - INFORMATION STORAGE
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Large scale integrated circuit having low internal operating voltage
- Patent number 5,376,839
- Issue date Dec 27, 1994
- Hitachi Ltd.
- Masashi Horiguchi
- G05 - CONTROLLING REGULATING
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Large scale integrated circuit having low internal operating voltage
- Patent number 5,254,880
- Issue date Oct 19, 1993
- Hitachi, Ltd.
- Masashi Horiguchi
- G05 - CONTROLLING REGULATING
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Large scale integrated circuit having low internal operating voltage
- Patent number 5,179,539
- Issue date Jan 12, 1993
- Hitachi, Ltd., Hitachi Vlsi Engineering Corporation
- Masashi Horiguchi
- G05 - CONTROLLING REGULATING
Information Patent Grant
Semiconductor device having a reference voltage generating circuit
- Patent number 4,994,688
- Issue date Feb 19, 1991
- Hitachi Ltd.
- Masashi Horiguchi
- G05 - CONTROLLING REGULATING
Information Patent Grant
Low noise semiconductor memory
- Patent number 4,958,325
- Issue date Sep 18, 1990
- Hitachi, Ltd.
- Yoshinobu Nakagome
- G11 - INFORMATION STORAGE