Inventor · disambiguated record
Katsunori Kumasaka
Also filed as: KUMASAKA KATSUNORI
9 granted patents·4 pending applications·141 citations·filing 1996–2018
89Inventor score
Top patents by PatentIndex Score
13 records- 0194US9544694B2Piezoelectric element, piezoelectric vibration module, and methods of manufacturing the sameABE YOSHIYUKI·Filed 2012·Granted Jan 10, 2017·30 cites·43 claims
- 0277US9743166B2Device generating soundTOKIN CORP·Filed 2014·Granted Aug 22, 2017·6 cites·15 claims
- 0373US6118221ACold-cathode tube lighting circuit with protection circuit for piezoelectric transformerTOKIN CORP·Filed 1998·Granted Sep 12, 2000·37 cites·10 claims
- 0459US5998909APiezoelectric transformerTOKIN CORP·Filed 1997·Granted Dec 7, 1999·18 cites·14 claims
- 0559US5777425AVoltage converter for use with a piezoelectric transformerTOKIN CORP·Filed 1996·Granted Jul 7, 1998·18 cites·8 claims
- 0646US5847490APiezoelectric transformer wrapped by wrapping member of soft insulating sheet materialTOKIN CORP·Filed 1997·Granted Dec 8, 1998·10 cites·19 claims
- 0745US5949179APiezoelectric transformer and power supply including the sameTOKIN CORP·Filed 1998·Granted Sep 7, 1999·9 cites·13 claims
- 0842US6515405B1Mounting structure of piezoelectric transformer and method of mounting piezoelectric transformerTOKIN CORP·Filed 1999·Granted Feb 4, 2003·9 cites·1 claims
- 0938US2018317020A1Speaker and image display apparatusTOKIN CORP·Filed 2018·Application pending·0 cites
- 1036US6960871B1Piezoelectric transformerNEC TOKIN CORP·Filed 1999·Granted Nov 1, 2005·4 cites·14 claims
- 1133US2018041839A1Piezoelectric speakerTOKIN CORP·Filed 2016·Application pending·0 cites
- 1233US2018035200A1Vibration transfer structure and piezoelectric speakerTOKIN CORP·Filed 2016·Application pending·0 cites
- 1333US2017257706A1Sound generating unit and electronic deviceTOKIN CORP·Filed 2015·Application pending·0 cites
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