Assignee
MATSUSHIMA KOGYO KK
JP·5 granted patents·140 citations·filing 1978–1988
Top patents by PatentIndex Score
5 records- 0194US4293986AMethod of making a quartz crystal oscillatorMATSUSHIMA KOGYO KK·Filed 1978·Granted Oct 13, 1981·89 cites·3 claims
- 0264US4288284AMethod of producing housing element for quartz crystal oscillatorMATSUSHIMA KOGYO KK·Filed 1980·Granted Sep 8, 1981·12 cites·6 claims
- 0357US4282498ACircuit packageMATSUSHIMA KOGYO KK·Filed 1979·Granted Aug 4, 1981·13 cites·21 claims
- 0452US4916413APackage for piezo-oscillatorMATSUSHIMA KOGYO KK·Filed 1988·Granted Apr 10, 1990·20 cites·23 claims
- 0533US4677397AQuartz crystal oscillator with crystal supported on springMATSUSHIMA KOGYO KK·Filed 1986·Granted Jun 30, 1987·6 cites·11 claims
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