Hiroaki Ohta

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Hiratuska, JP

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Patents Grantslast 30 patents

Information Patent Grant
Magnetic disk unit with an impact force applying mechanism
- Patent number 5,737,150
- Issue date Apr 7, 1998
- Hitachi, Ltd.
- Hiroaki Ohta
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical device using a resilient member
- Patent number 5,109,368
- Issue date Apr 28, 1992
- Hitachi, Ltd.
- Hiroaki Ohta
- G11 - INFORMATION STORAGE