Inventor · disambiguated record
Takashi Oyaba
Also filed as: OYABA TAKASHI
5 granted patents·130 citations·filing 1975–1989
83Inventor score
Technology areasH04R
Files withPIONEER ELECTRONIC CORP5
Top patents by PatentIndex Score
5 records- 0174US3982143APiezoelectric diaphragm electro-acoustic transducerPIONEER ELECTRONIC CORP·Filed 1975·Granted Sep 21, 1976·37 cites·8 claims
- 0265US4991687ASpeaker system having directivityPIONEER ELECTRONIC CORP·Filed 1989·Granted Feb 12, 1991·44 cites·2 claims
- 0350US5117463ASpeaker system having directivityPIONEER ELECTRONIC CORP·Filed 1989·Granted May 26, 1992·26 cites·13 claims
- 0449US4461932ARibbon type speaker and method of assembling magnetic circuit thereofPIONEER ELECTRONIC CORP·Filed 1981·Granted Jul 24, 1984·17 cites·33 claims
- 0536US3976897APiezoelectric electro-acoustic diaphragm transducer with composite resilient backingPIONEER ELECTRONIC CORP·Filed 1975·Granted Aug 24, 1976·6 cites·16 claims
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