Inventor · disambiguated record
Toru Hirai
Also filed as: HIRAI TORU
8 granted patents·5 pending applications·135 citations·filing 2001–2024
88Inventor score
Top patents by PatentIndex Score
13 records- 0194US7925006B2Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus and transfer function calculation apparatusYAMAHA CORP·Filed 2007·Granted Apr 12, 2011·43 cites·8 claims
- 0288US7130428B2Picked-up-sound recording method and apparatusYAMAHA CORP·Filed 2001·Granted Oct 31, 2006·37 cites·21 claims
- 0384US7230525B2Tire air pressure monitoring systemNISSAN MOTOR·Filed 2005·Granted Jun 12, 2007·10 cites·19 claims
- 0477US7925008B2Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus and transfer function calculation apparatusYAMAHA CORP·Filed 2007·Granted Apr 12, 2011·5 cites·8 claims
- 0575US7403609B2Multi-channel echo cancel method, multi-channel sound transfer method, stereo echo canceller, stereo sound transfer apparatus and transfer function calculation apparatusYAMAHA CORP·Filed 2003·Granted Jul 22, 2008·15 cites·21 claims
- 0674US7596495B2Current noise spectrum estimation method and apparatus with correlation between previous noise and current noise signalYAMAHA CORP·Filed 2005·Granted Sep 29, 2009·7 cites·14 claims
- 0770US6950513B2Impulse response setting method for the 2-channel echo canceling filter, a two-channel echo canceller, and a two-way 2-channel voice transmission deviceYAMAHA CORP·Filed 2002·Granted Sep 27, 2005·17 cites·13 claims
- 0867US10641407B2Flow rate control deviceFUJIKIN KK·Filed 2017·Granted May 5, 2020·1 cites·20 claims
- 0957US2025012376A1Flow rate control device and zero point adjustment method for piezo valveFUJIKIN KK·Filed 2024·Application pending·0 cites
- 1052US2025305595A1Fluid control device, fluid control system, and valve control deviceFUJIKIN KK·Filed 2023·Application pending·0 cites
- 1142US2002134135A1Unreacted gas detector and unreacted gas sensorFUJIKIN KK·Filed 2002·Application pending·0 cites
- 1238US2005220292A1Method of discriminating between double-talk state and single-talk stateYAMAHA CORP·Filed 2005·Application pending·0 cites
- 1336US2002136676A1Reactor for generating moistureFUJIKIN KK·Filed 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →