Inventor · disambiguated record
Takekazu Iijima
Also filed as: IIJIMA TAKEKAZU
30 granted patents·535 citations·filing 1978–2013
97Inventor score
Technology areasH04R
Top patents by PatentIndex Score
30 records- 0195USD268673SLoudspeakerPIONEER ELECTRONIC CORP·Filed 1980·Granted Apr 19, 1983·40 cites·1 claims
- 0295USD254434SLoudspeakerPIONEER ELECTRONIC CORP·Filed 1978·Granted Mar 11, 1980·33 cites·1 claims
- 0395USD254130SLoudspeaker with grillePIONEER ELECTRONIC CORP·Filed 1978·Granted Feb 5, 1980·36 cites·1 claims
- 0490USD270909SLoudspeakerPIONEER ELECTRONIC CORP·Filed 1981·Granted Oct 11, 1983·27 cites·1 claims
- 0589USD472545SSpeakerPIONEER KABUSHIKI KAISHA·Filed 2002·Granted Apr 1, 2003·45 cites·1 claims
- 0687USD493445SSpeakerPIONEER CORP·Filed 2003·Granted Jul 27, 2004·33 cites·1 claims
- 0786USD258359SLoudspeakerPIONEER ELECTRONIC CORP·Filed 1978·Granted Feb 24, 1981·18 cites·1 claims
- 0885USD583798SDigital audio disk player with acoustic mixerPIONEER KABUSHIKI KAISHA·Filed 2008·Granted Dec 30, 2008·38 cites·1 claims
- 0985USD265556SLoudspeakerPIONEER ELECTRONIC CORP·Filed 1980·Granted Jul 27, 1982·20 cites·1 claims
- 1081USD593544SAudio mixerPIONEER KABUSHIKI KAISHA·Filed 2007·Granted Jun 2, 2009·29 cites·1 claims
- 1178USD284369SAutomobile combined stereo receiver and cassette tape playerPIONEER ELECTRONIC CORP·Filed 1983·Granted Jun 24, 1986·16 cites·1 claims
- 1278USD276153SLoudspeakerPIONEER ELECTRONIC CORP·Filed 1982·Granted Oct 30, 1984·14 cites·1 claims
- 1376USD715264SDigital audio player with a wireless connection and mixing functionPIONEER CORP·Filed 2013·Granted Oct 14, 2014·20 cites·1 claims
- 1474USD666173SController for digital audio playerIIJIMA TAKEKAZU·Filed 2011·Granted Aug 28, 2012·20 cites·1 claims
- 1571USD266510SAmplifierPIONEER ELECTRONIC CORP·Filed 1979·Granted Oct 12, 1982·9 cites·1 claims
- 1669USD666172SController for digital audio playerIIJIMA TAKEKAZU·Filed 2011·Granted Aug 28, 2012·16 cites·1 claims
- 1768USD555637SDevice for mixing sounds of musical instrumentsPIONEER CORP·Filed 2006·Granted Nov 20, 2007·16 cites·1 claims
- 1867USD269870SLoudspeakerPIONEER ELECTRONIC CORP·Filed 1981·Granted Jul 26, 1983·9 cites·1 claims
- 1964USD616410SDigital audio disk player with mixing functionsPIONEER KABUSHIKI KAISHA·Filed 2009·Granted May 25, 2010·13 cites·1 claims
- 2063USD677247SVolume adjusterIIJIMA TAKEKAZU·Filed 2012·Granted Mar 5, 2013·13 cites·1 claims
- 2161USD493161SSpeakerPIONEER CORP·Filed 2003·Granted Jul 20, 2004·11 cites·1 claims
- 2257USD487738SSpeakerPIONEER CORP·Filed 2003·Granted Mar 23, 2004·10 cites·1 claims
- 2357USD266324SLoudspeakerPIONEER ELECTRONIC CORP·Filed 1980·Granted Sep 28, 1982·6 cites·1 claims
- 2455USD281596SLoudspeakerPIONEER ELECTRONIC CORP·Filed 1983·Granted Dec 3, 1985·5 cites·1 claims
- 2552USD555638SDevice for mixing sounds of musical instrumentsPIONEER CORP·Filed 2006·Granted Nov 20, 2007·8 cites·1 claims
- 2650USD265477SLoudspeakerPIONEER ELECTRONIC CORP·Filed 1980·Granted Jul 20, 1982·4 cites·1 claims
- 2747USD668636SDevice for mixing sounds of musical instrumentsIIJIMA TAKEKAZU·Filed 2011·Granted Oct 9, 2012·6 cites·1 claims
- 2846USD265732SLoudspeakerPIONEER ELECTRONIC CORP·Filed 1980·Granted Aug 10, 1982·3 cites·1 claims
- 2945US4365113ASpeaker unit for automotive vehiclesPIONEER ELECTRONIC CORP·Filed 1980·Granted Dec 21, 1982·15 cites·9 claims
- 3041USD273106SLoudspeakerPIONEER ELECTRONIC CORP·Filed 1981·Granted Mar 20, 1984·2 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →