Toshio Matsushita

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Patents Grantslast 30 patents

Information Patent Grant
Magnetic disk apparatus
- Patent number 5,953,178
- Issue date Sep 14, 1999
- Hitachi, Ltd.
- Akio Takatsuka
- G11 - INFORMATION STORAGE
Information Patent Grant
Head locating actuator having reduced susceptibility to dynamic rea...
- Patent number 5,615,068
- Issue date Mar 25, 1997
- Hitachi, Ltd.
- Yasuhiro Matsuda
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk device with auxiliary battery and start method thereof
- Patent number 5,532,563
- Issue date Jul 2, 1996
- Hitachi, Ltd.
- Kouji Kodama
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk unit and manufacturing method of carriage structure t...
- Patent number 5,301,078
- Issue date Apr 5, 1994
- Hitachi, Ltd.
- Toshiaki Makino
- G11 - INFORMATION STORAGE
Information Patent Grant
Actuator for positioning heads in magnetic disc apparatus
- Patent number 4,855,853
- Issue date Aug 8, 1989
- Hitachi, Ltd.
- Toshio Matsushita
- G11 - INFORMATION STORAGE