Assignee
KOKUBU SADAO
JP·2 granted patents·17 citations·filing 1987–1988
Top patents by PatentIndex Score
2 records- 0145US4795900AOptical switch device employing a fluorescent substance with a radioactive element as a light sourceKOKUBU SADAO·Filed 1987·Granted Jan 3, 1989·10 cites·5 claims
- 0244US4847508APhoto-coupler switch with delay function using a fluorescent substance as the delay meansKOKUBU SADAO·Filed 1988·Granted Jul 11, 1989·7 cites·6 claims
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