Hirofumi Ohta

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Mobara, JP

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Patents Grantslast 30 patents

Information Patent Grant
Magnetic bubble memory element with heat sink
- Patent number 4,334,290
- Issue date Jun 8, 1982
- Hitachi, Ltd.
- Minoru Hiroshima
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic bubble memory device
- Patent number 4,322,818
- Issue date Mar 30, 1982
- Hitachi, Ltd.
- Minoru Hiroshima
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic bubble memory devices
- Patent number 4,293,929
- Issue date Oct 6, 1981
- Hitachi, Ltd.
- Hirofumi Ohta
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic bubble memory devices
- Patent number 4,175,288
- Issue date Nov 20, 1979
- Hitachi, Ltd.
- Hirofumi Ohta
- G11 - INFORMATION STORAGE
Information Patent Grant
Circuit arrangement for suppressing magnetic induction noise due to...
- Patent number 4,151,608
- Issue date Apr 24, 1979
- Hitachi, Ltd.
- Nobuo Saito
- G11 - INFORMATION STORAGE