Inventor
Kinya Matsuzawa
Inventor
Shiojiri, JP
Overview
Patents· 30 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Rprimary
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers20%
H02KDynamo-electric machines16%
B06BMethods or apparatus for generating or transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency, e.g. for performing mechanical work in general15%
G10KSound-producing devices10%
G04CElectromechanical clocks or watches8%
Y10TTechnical subjects covered by former us classification8%
G05FSystems for regulating electric or magnetic variables3%
H02NElectric machines not otherwise provided for3%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters3%
H04NPictorial communication, e.g. television3%
PatentTitleYear
9,250,641'Load driving circuit and load driving method'20168,666,094'Drive 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 display'20148,130,973'Superdirectional acoustic system and projector'20128,126,171'Electrostatic ultrasonic transducer and ultrasonic speaker'20128,049,368'Load driving circuit and load driving method'20118,045,735'Ultrasonic transducer and ultrasonic speaker using the same'20118,009,846'Ultrasonic speaker and projector'20117,949,143'Ultrasonic transducer, ultrasonic speaker, acoustic system, and control method of ultrasonic transducer'20117,907,740'Electrostatic ultrasonic transducer drive control method, electrostatic ultrasonic transducer, ultrasonic speaker using the same, audio signal reproduction method, ultra-directional acoustic system, and display device'20117,881,489'Ultrasonic transducer and ultrasonic speaker using the same'20117,804,971'Electrostatic ultrasonic transducer, ultrasonic speaker and display device'20107,769,193'Electrostatic 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 device'20107,690,792'Projector and method of controlling ultrasonic speaker in projector'20107,564,986'Ultrasonic speaker and projector'20097,542,579'Ultrasonic transducer, ultrasonic speaker, acoustic system, and control method of ultrasonic transducer'20097,224,098'Ultrasonic transducer and method of manufacturing ultrasonic transducer'20077,210,785'Projector'20077,191,655'Material determination system and method'20076,879,068'Power generator, timepiece and electronic device having the same, and cogging torque adjustment method for the same'20056,831,446'Power generator, timepiece and electronic device having the same, and cogging torque adjustment method for the same'20046,800,983'Magnetic circuit structure, and power-generating device and electronic device using the same'20046,633,511'Electronic controlling type mechanical timepiece'20036,628,037'Power generator, electronic device using the same, method of setting plate thickness in a magnetic circuit in electronically controlled timepiece and power generator'20036,541,882'Power generator, timepiece and electronic device having the same, and cogging torque adjustment method for the same'20036,166,470'Brushless DC motor'20005,952,760'Brushless DC motor'19995,903,074'Brushless DC motor and method for driving the same'19995,808,390'Brushless DC motor'19985,679,997'Brushless DC motor and method for driving the same'19974,820,787'Shaped article of an oriented tetrafluoroethylene polymer'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989Patents assigned to ASAHI CHEMICAL IND (1)· patent assignee history
1989Based in Tokyo, JP· patent location history
1997–2016Patents assigned to SEIKO EPSON CORP (29)· patent assignee history
1997–2014Based in Suwa, JP· patent location history
2003–2016Based in Shiojiri, JP· patent location history
2007–2011Based in Nagano, JP· patent location history
2012–2016Patents assigned to MATSUZAWA KINYA (4)· patent assignee history
2012Patents assigned to KOJIMA HIDEKI (1)· patent assignee history
2016Patents assigned to IINO SHOICHI (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SEIKO EPSON CORP | 29 | 1997–2016 |
| MATSUZAWA KINYAself | 4 | 2012–2016 |
| ASAHI CHEMICAL IND | 1 | 1989 |
| IINO SHOICHI | 1 | 2016 |
| KOJIMA HIDEKI | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Shiojiri, JP | 16 | 2003–2016 |
| Suwa, JP | 9 | 1997–2014 |
| Nagano, JP | 4 | 2007–2011 |
| Tokyo, JP | 1 | 1989 |