Inventor · disambiguated record
Kinya Matsuzawa
Also filed as: MATSUZAWA KINYA
30 granted patents·3 pending applications·323 citations·filing 1987–2014
97Inventor score
Top patents by PatentIndex Score
33 records- 0187US7907740B2Electrostatic ultrasonic transducer drive control method, electrostatic ultrasonic transducer, ultrasonic speaker using the same, audio signal reproduction method, ultra-directional acoustic system, and display deviceSEIKO EPSON CORP·Filed 2006·Granted Mar 15, 2011·17 cites·4 claims
- 0287US7769193B2Electrostatic ultrasonic transducer, ultrasonic speaker, audio signal reproduction method, electrode manufacturing method for use in ultrasonic transducer, ultrasonic transducer manufacturing method, superdirective acoustic system, and display deviceSEIKO EPSON CORP·Filed 2006·Granted Aug 3, 2010·17 cites·18 claims
- 0382US8009846B2Ultrasonic speaker and projectorSEIKO EPSON CORP·Filed 2009·Granted Aug 30, 2011·9 cites·4 claims
- 0480US7881489B2Ultrasonic transducer and ultrasonic speaker using the sameSEIKO EPSON CORP·Filed 2005·Granted Feb 1, 2011·13 cites·29 claims
- 0578US5679997ABrushless DC motor and method for driving the sameSEIKO EPSON CORP·Filed 1993·Granted Oct 21, 1997·34 cites·3 claims
- 0676US7804971B2Electrostatic ultrasonic transducer, ultrasonic speaker and display deviceSEIKO EPSON CORP·Filed 2006·Granted Sep 28, 2010·7 cites·3 claims
- 0776US5808390ABrushless DC motorSEIKO EPSON CORP·Filed 1996·Granted Sep 15, 1998·44 cites·2 claims
- 0873US7564986B2Ultrasonic speaker and projectorSEIKO EPSON CORP·Filed 2005·Granted Jul 21, 2009·5 cites·10 claims
- 0973US6166470ABrushless DC motorSEIKO EPSON CORP·Filed 1992·Granted Dec 26, 2000·38 cites·2 claims
- 1072US4820787AShaped article of an oriented tetrafluoroethylene polymerASAHI CHEMICAL IND·Filed 1987·Granted Apr 11, 1989·28 cites·16 claims
- 1170US8049368B2Load driving circuit and load driving methodSEIKO EPSON CORP·Filed 2009·Granted Nov 1, 2011·6 cites·3 claims
- 1269US6541882B2Power generator, timepiece and electronic device having the same, and cogging torque adjustment method for the sameSEIKO EPSON CORP·Filed 2001·Granted Apr 1, 2003·9 cites·10 claims
- 1366US8045735B2Ultrasonic transducer and ultrasonic speaker using the sameSEIKO EPSON CORP·Filed 2005·Granted Oct 25, 2011·3 cites·17 claims
- 1465US7690792B2Projector and method of controlling ultrasonic speaker in projectorSEIKO EPSON CORP·Filed 2005·Granted Apr 6, 2010·4 cites·9 claims
- 1565US7191655B2Material determination system and methodSEIKO EPSON CORP·Filed 2004·Granted Mar 20, 2007·5 cites·2 claims
- 1665US6800983B1Magnetic circuit structure, and power-generating device and electronic device using the sameSEIKO EPSON CORP·Filed 2000·Granted Oct 5, 2004·13 cites·28 claims
- 1764US8666094B2Drive control method of electrostatic-type ultrasonic transducer, electrostatic-type ultrasonic transducer, ultrasonic speaker using electrostatic-type ultrasonic transducer, audio signal reproducing method, superdirectional acoustic system, and displayMATSUZAWA KINYA·Filed 2006·Granted Mar 4, 2014·5 cites·3 claims
- 1863US7949143B2Ultrasonic transducer, ultrasonic speaker, acoustic system, and control method of ultrasonic transducerSEIKO EPSON CORP·Filed 2009·Granted May 24, 2011·2 cites·4 claims
- 1963US5952760ABrushless DC motorSEIKO EPSON CORP·Filed 1997·Granted Sep 14, 1999·27 cites·4 claims
- 2062US8126171B2Electrostatic ultrasonic transducer and ultrasonic speakerSEKINO HIROKAZU·Filed 2007·Granted Feb 28, 2012·3 cites·6 claims
- 2162US6879068B2Power generator, timepiece and electronic device having the same, and cogging torque adjustment method for the sameSEIKO EPSON CORP·Filed 2003·Granted Apr 12, 2005·5 cites·12 claims
- 2260US7210785B2ProjectorSEIKO EPSON CORP·Filed 2004·Granted May 1, 2007·4 cites·9 claims
- 2358US7542579B2Ultrasonic transducer, ultrasonic speaker, acoustic system, and control method of ultrasonic transducerSEIKO EPSON CORP·Filed 2005·Granted Jun 2, 2009·2 cites·8 claims
- 2458US6628037B2Power generator, electronic device using the same, method of setting plate thickness in a magnetic circuit in electronically controlled timepiece and power generatorSEIKO EPSON CORP·Filed 2001·Granted Sep 30, 2003·8 cites·28 claims
- 2556US2014161291A1Drive control method of electrostatic-type ultrasonic transducer, electrostatic-type ultrasonic transducer, ultrasonic speaker using electrostatic-type ultrasonic transducer, audio signal reproducing method, superdirectional acoustic system, and displaySEIKO EPSON CORP·Filed 2014·Application pending·0 cites
- 2653US6831446B2Power generator, timepiece and electronic device having the same, and cogging torque adjustment method for the sameSEIKO EPSON CORP·Filed 2004·Granted Dec 14, 2004·3 cites·2 claims
- 2752US8130973B2Superdirectional acoustic system and projectorUETAKE AKIHITO·Filed 2005·Granted Mar 6, 2012·1 cites·8 claims
- 2850US2010082053A1Fluid ejection device, fluid ejection method and fluid ejection surgical instrumentSEIKO EPSON CORP·Filed 2009·Application pending·0 cites
- 2948US9250641B2Load driving circuit and load driving methodMIYAZAKI SHINICHI·Filed 2011·Granted Feb 2, 2016·0 cites·8 claims
- 3044US2008152172A1Electrostatic ultrasonic transducer, and ultrasonic speaker, audio signal reproduction method, ultra-directive sound system, and display apparatus using electrostatic ultrasonic transducerSEIKO EPSON CORP·Filed 2007·Application pending·0 cites
- 3141US7224098B2Ultrasonic transducer and method of manufacturing ultrasonic transducerSEIKO EPSON CORP·Filed 2005·Granted May 29, 2007·0 cites·6 claims
- 3240US5903074ABrushless DC motor and method for driving the sameSEIKO EPSON CORP·Filed 1997·Granted May 11, 1999·8 cites·4 claims
- 3333US6633511B1Electronic controlling type mechanical timepieceSEIKO EPSON CORP·Filed 1999·Granted Oct 14, 2003·3 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →