Kiyotaka Yokoo

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Patents Grantslast 30 patents

Information Patent Grant
Electromagnetic relay
- Patent number 5,015,978
- Issue date May 14, 1991
- NEC Corporation
- Kiyotaka Yokoo
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electromagnetic relay
- Patent number 4,912,438
- Issue date Mar 27, 1990
- NEC Corporation
- Kiyotaka Yokoo
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Transfer-type electromagnetic relay comprising a coil around a hous...
- Patent number 4,342,016
- Issue date Jul 27, 1982
- Nippon Electric Co., Ltd.
- Kiyotaka Yokoo
- H01 - BASIC ELECTRIC ELEMENTS