Assignee
TOA CORP
JP·47 granted patents·4 pending applications·537 citations·filing 1988–2025
Top patents by PatentIndex Score
51 records- 0187USD557257SSpeakerTOA CORP·Filed 2006·Granted Dec 11, 2007·40 cites·1 claims
- 0287USD531986SLoudspeaker housingTOA CORP·Filed 2005·Granted Nov 14, 2006·41 cites·1 claims
- 0386USD851633SMicrophone with built-in speakerTOA CORP·Filed 2017·Granted Jun 18, 2019·28 cites·1 claims
- 0484USD714266SMicrophoneTOA CORP·Filed 2013·Granted Sep 30, 2014·41 cites·1 claims
- 0583USD595684STransmitterTOA CORP·Filed 2008·Granted Jul 7, 2009·32 cites·1 claims
- 0682USD585434SMicrophoneTOA CORP·Filed 2008·Granted Jan 27, 2009·31 cites·1 claims
- 0779US7627180B2Image compression apparatusTOA CORP·Filed 2005·Granted Dec 1, 2009·7 cites·4 claims
- 0879US7324656B2Wide dispersion speaker system and cover mounting structure for instrument directly mounted to flat portionTOA CORP·Filed 2003·Granted Jan 29, 2008·21 cites·23 claims
- 0978US7735599B2Sound wave guide structure for speaker system and horn speakerTOA CORP·Filed 2004·Granted Jun 15, 2010·17 cites·26 claims
- 1076US7894769B2Wireless microphone communication systemTOA CORP·Filed 2004·Granted Feb 22, 2011·9 cites·6 claims
- 1172USD583806SMicrophoneTOA CORP·Filed 2008·Granted Dec 30, 2008·20 cites·1 claims
- 1269US7965850B2Resonance frequency determining method, resonance frequency selecting method, and resonance frequency determining apparatusTOA CORP·Filed 2005·Granted Jun 21, 2011·6 cites·12 claims
- 1368US8014611B2Image compression method, image compression device, image transmission system, data compression pre-processing apparatus, and computer programTOA CORP·Filed 2005·Granted Sep 6, 2011·5 cites·18 claims
- 1467US6580801B1Loudspeaker apparatusTOA CORP·Filed 2000·Granted Jun 17, 2003·12 cites·10 claims
- 1566US2026060552A1Protein Detection Device and Protein Detection MethodTOA CORP·Filed 2025·Application pending·0 cites
- 1664US7401681B2Mounting support device for ceiling embedded speaker systemTOA CORP·Filed 2004·Granted Jul 22, 2008·11 cites·11 claims
- 1764USD567211SAmplifierTOA CORP·Filed 2006·Granted Apr 22, 2008·18 cites·1 claims
- 1864US7249511B2Method of detecting resonant frequency, method of selecting resonance frequency, and device for detecting resonant frequency sensorTOA CORP·Filed 2003·Granted Jul 31, 2007·10 cites·10 claims
- 1963US7840024B2Wide dispersion speaker system and cover mounting structure for instrument directly mounted to flat portionTOA CORP·Filed 2007·Granted Nov 23, 2010·2 cites·11 claims
- 2063US5020858AMethod of and apparatus for forming and transporting mud clogsTOA CORP·Filed 1990·Granted Jun 4, 1991·25 cites·7 claims
- 2162US7787635B2Dip filter frequency characteristic decision methodTOA CORP·Filed 2004·Granted Aug 31, 2010·9 cites·3 claims
- 2262USD586328SReceiverTOA CORP·Filed 2008·Granted Feb 10, 2009·13 cites·1 claims
- 2358US7245678B2Digital wireless receiver using antenna diversity methodTOA CORP·Filed 2003·Granted Jul 17, 2007·5 cites·5 claims
- 2456US5715322AThroat device interconnecting a plurality of drive units and a hornTOA CORP·Filed 1996·Granted Feb 3, 1998·28 cites·5 claims
- 2555US9818430B2Estimating sound source position with microphone array controlTOA CORP·Filed 2013·Granted Nov 14, 2017·1 cites·6 claims
- 2654USD570827SSpeakerTOA CORP·Filed 2007·Granted Jun 10, 2008·9 cites·1 claims
- 2754US5148491AAutomatic mixer apparatusTOA CORP·Filed 1990·Granted Sep 15, 1992·18 cites·5 claims
- 2852US9826307B2Microphone array including at least three microphone unitsTOA CORP·Filed 2013·Granted Nov 21, 2017·1 cites·4 claims
- 2951US5285025ALoudspeaker hornTOA CORP·Filed 1990·Granted Feb 8, 1994·20 cites·9 claims
- 3050US12012836B2Water bottom resource collecting system and collecting methodTOA CORP·Filed 2022·Granted Jun 18, 2024·0 cites·14 claims
- 3150US7260227B2Method and device for measuring sound wave propagation time between loudspeaker and microphoneTOA CORP·Filed 2003·Granted Aug 21, 2007·3 cites·8 claims
- 3249US7430255B2Impulse noise suppression deviceTOA CORP·Filed 2002·Granted Sep 30, 2008·5 cites·5 claims
- 3348US9648413B2Loudspeaker systemTOA CORP·Filed 2013·Granted May 9, 2017·0 cites·17 claims
- 3448US7248655B2Digital radio receiverTOA CORP·Filed 2003·Granted Jul 24, 2007·1 cites·2 claims
- 3548US6172635B1Highly accurate A/D converterTOA CORP·Filed 1999·Granted Jan 9, 2001·12 cites·5 claims
- 3647US7596238B2Howling margin measuring deviceTOA CORP·Filed 2004·Granted Sep 29, 2009·1 cites·11 claims
- 3746US12170872B2Public address systemTOA CORP·Filed 2020·Granted Dec 17, 2024·0 cites·7 claims
- 3846US7386004B2Digital broadcast systemTOA CORP·Filed 2003·Granted Jun 10, 2008·0 cites·5 claims
- 3946US6658128B1Horn loudspeakerTOA CORP·Filed 1999·Granted Dec 2, 2003·22 cites·3 claims
- 4045US2024003253A1Water bottom resource collecting methodTOA CORP·Filed 2022·Application pending·0 cites
- 4144USD584721SMicrophoneTOA CORP·Filed 2008·Granted Jan 13, 2009·6 cites·1 claims
- 4241US10355794B2Channel simulation device and channel simulation programTOA CORP·Filed 2015·Granted Jul 16, 2019·0 cites·14 claims
- 4341US2009303328A1Surveillance system and control apparatus thereforTOA CORP·Filed 2006·Application pending·0 cites
- 4438US7035395B2Digital communication systemTOA CORP·Filed 2001·Granted Apr 25, 2006·0 cites·5 claims
- 4537US2025211930A1Emergency broadcast system and speaker unitTOA CORP·Filed 2022·Application pending·0 cites
- 4636US7551690B2Transmitter and receiverTOA CORP·Filed 2002·Granted Jun 23, 2009·0 cites·2 claims
- 4733USD522998SAmplifier housingTOA CORP·Filed 2005·Granted Jun 13, 2006·3 cites·1 claims
- 4833US4903419AMethod of and apparatus for dredging sludge in high densityTOA CORP·Filed 1988·Granted Feb 27, 1990·4 cites·5 claims
- 4930US12266369B2AI control device, server device connected to AI control device, and AI control methodTOA CORP·Filed 2020·Granted Apr 1, 2025·0 cites·8 claims
- 5028US12273692B2Public address device, howling suppression device, and howling suppression methodTOA CORP·Filed 2020·Granted Apr 8, 2025·0 cites·3 claims
Showing the top 50 of 51 patent records by PatentIndex Score.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →