Toshio Ohji

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Patents Grantslast 30 patents

Information Patent Grant
Rotary transformer
- Patent number 5,412,366
- Issue date May 2, 1995
- Hitachi, Ltd.
- Toshio Ohji
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Coil assembly for rotary magnetic head apparatus
- Patent number 5,363,263
- Issue date Nov 8, 1994
- Hitachi Ltd.
- Toshio Ohji
- G11 - INFORMATION STORAGE
Information Patent Grant
Rotary magnetic head device with rotary transformer having high cou...
- Patent number 5,126,906
- Issue date Jun 30, 1992
- Hitachi, Ltd.
- Toshio Ohji
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for mounting coils inside a hollow cylindrical...
- Patent number 4,882,833
- Issue date Nov 28, 1989
- Hitachi, Ltd.
- Hiromichi Hiramatsu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Rotary magnetic head assembly
- Patent number 4,835,645
- Issue date May 30, 1989
- Hitachi, Ltd.
- Toshio Ohji
- G11 - INFORMATION STORAGE