Shoichi Koyama

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Horinouchi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Back core holding clip disposed on interior side of back core
- Patent number 4,809,112
- Issue date Feb 28, 1989
- Alps Electric Co., Ltd.
- Ichiro Noguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head having ceramic coupling body
- Patent number 4,769,728
- Issue date Sep 6, 1988
- Alps Electric Co, Ltd.
- Humitoshi Toyoshima
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head and method of manufacturing the same
- Patent number 4,514,776
- Issue date Apr 30, 1985
- Alps Electric Co., Ltd.
- Shoichi Koyama
- G11 - INFORMATION STORAGE