Assignee
RIKEN DENSHI CO LTD
JP·6 granted patents·149 citations·filing 1981–1993
Top patents by PatentIndex Score
6 records- 0190US4636772AMultiple function type D/A converterRIKEN DENSHI CO LTD·Filed 1985·Granted Jan 13, 1987·86 cites·1 claims
- 0267US4994733APotentiometer for voltage-measuring instrumentRIKEN DENSHI CO LTD·Filed 1989·Granted Feb 19, 1991·26 cites·6 claims
- 0351US4433287ARange switching device for electric meterRIKEN DENSHI CO LTD·Filed 1981·Granted Feb 21, 1984·15 cites·4 claims
- 0442US4980570ADevice for determining location of aperturesRIKEN DENSHI CO LTD·Filed 1990·Granted Dec 25, 1990·12 cites·1 claims
- 0536US5241175AMethod and equipment for prediction of volcanic eruption and earthquakeRIKEN DENSHI CO LTD·Filed 1991·Granted Aug 31, 1993·5 cites·4 claims
- 0630US5386114ADetector for activity direction of magmaRIKEN DENSHI CO LTD·Filed 1993·Granted Jan 31, 1995·5 cites·8 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →