Keisuke Ishikawa

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Patents Grantslast 30 patents

Information Patent Grant
Casing for electronic devices
- Patent number 4,697,044
- Issue date Sep 29, 1987
- Alps Electric Co., Ltd.
- Keisuke Ishikawa
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Rotary shaft holding mechanism for a rotary variable element
- Patent number 4,649,761
- Issue date Mar 17, 1987
- Alps Electric Co., Ltd.
- Keisuke Ishikawa
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...