Inventor · disambiguated record
Tsumoru Oka
Also filed as: OKA TSUMORU
9 granted patents·148 citations·filing 1976–1991
89Inventor score
Files withALPS ELECTRIC CO LTD9
Top patents by PatentIndex Score
9 records- 0183US4824396AElectrical connection apparatusALPS ELECTRIC CO LTD·Filed 1988·Granted Apr 25, 1989·52 cites·8 claims
- 0277US4897513ARotary switchALPS ELECTRIC CO LTD·Filed 1989·Granted Jan 30, 1990·26 cites·3 claims
- 0373US4200773ASwitchALPS ELECTRIC CO LTD·Filed 1978·Granted Apr 29, 1980·15 cites·13 claims
- 0458US4921428ACable reelALPS ELECTRIC CO LTD·Filed 1989·Granted May 1, 1990·21 cites·8 claims
- 0556US4218594ARotary switch assemblyALPS ELECTRIC CO LTD·Filed 1978·Granted Aug 19, 1980·9 cites·13 claims
- 0647US5144277ASealing structure for electrical partsALPS ELECTRIC CO LTD·Filed 1991·Granted Sep 1, 1992·8 cites·3 claims
- 0746US4658236AAutomatic signal cancelling apparatus for a direction indicator on motorcycle or the like vehicleALPS ELECTRIC CO LTD·Filed 1984·Granted Apr 14, 1987·9 cites·4 claims
- 0838US4087779APrinted circuit and method of makingALPS ELECTRIC CO LTD·Filed 1976·Granted May 2, 1978·6 cites·2 claims
- 0930US4652850APotentiometerALPS ELECTRIC CO LTD·Filed 1986·Granted Mar 24, 1987·2 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →