Inventor · disambiguated record
Ryosuke Tachi
Also filed as: TACHI RYOSUKE
33 granted patents·1 pending application·278 citations·filing 1982–2024
95Inventor score
Top patents by PatentIndex Score
34 records- 0190US12035115B2Speaker distortion correction deviceALPS ALPINE CO LTD·Filed 2022·Granted Jul 9, 2024·4 cites·18 claims
- 0289US11805367B2SpeakerALPS ALPINE CO LTD·Filed 2022·Granted Oct 31, 2023·2 cites·19 claims
- 0387US6267296B1Two-dimensional code and method of optically reading the sameDENSO CORP·Filed 1999·Granted Jul 31, 2001·134 cites·18 claims
- 0481US11622195B2Active noise control system utilizing noise cancellation soundsALPS ALPINE CO LTD·Filed 2021·Granted Apr 4, 2023·1 cites·15 claims
- 0577US12262194B2Dynamic acoustic control systems and methodsALPS ALPINE CO LTD·Filed 2022·Granted Mar 25, 2025·1 cites·9 claims
- 0676US11335314B2Active noise control system comprising auxiliary filter selection based on object positionALPINE ELECTRONICS INC·Filed 2020·Granted May 17, 2022·1 cites·17 claims
- 0775US4730256AElectronic control apparatus including microcomputers for controlling some of the systems found in a vehicleNIPPON DENSO CO·Filed 1985·Granted Mar 8, 1988·52 cites·12 claims
- 0873US4519038AOptimizing spark timing control apparatus and methodNIPPON DENSO CO·Filed 1982·Granted May 21, 1985·18 cites·8 claims
- 0971US12338942B2Seamless steel pipe and method of manufacture thereofJFE STEEL CORP·Filed 2021·Granted Jun 24, 2025·0 cites·9 claims
- 1068US4584978AMethod and apparatus for controlling spark timing in internal combustion enginesNIPPON DENSO CO·Filed 1984·Granted Apr 29, 1986·15 cites·5 claims
- 1166US12513440B2SpeakerALPS ALPINE CO LTD·Filed 2024·Granted Dec 30, 2025·0 cites·8 claims
- 1266US10854187B2Active noise control system and on-vehicle audio systemALPINE ELECTRONICS INC·Filed 2019·Granted Dec 1, 2020·1 cites·7 claims
- 1360US12499743B2Signal processing for haptic seating systemsALPS ALPINE CO LTD·Filed 2023·Granted Dec 16, 2025·0 cites·20 claims
- 1456US4883033AIgnition timing control system for internal combustion enginesNIPPON DENSO CO·Filed 1988·Granted Nov 28, 1989·16 cites·17 claims
- 1555US12464284B2Communication support systemALPS ALPINE CO LTD·Filed 2023·Granted Nov 4, 2025·0 cites·6 claims
- 1655US12112733B2Communication support systemALPS ALPINE CO LTD·Filed 2023·Granted Oct 8, 2024·0 cites·7 claims
- 1755US11922916B2Active noise control systemALPS ALPINE CO LTD·Filed 2022·Granted Mar 5, 2024·0 cites·12 claims
- 1855US11441203B2Method for quenching steel pipe, equipment for quenching steel pipe, and method for manufacturing steel pipeJFE STEEL CORP·Filed 2018·Granted Sep 13, 2022·0 cites·18 claims
- 1954US12052549B2SpeakerALPS ALPINE CO LTD·Filed 2022·Granted Jul 30, 2024·0 cites·6 claims
- 2054US11756523B2Active noise control systemALPS ALPINE CO LTD·Filed 2022·Granted Sep 12, 2023·0 cites·14 claims
- 2153US11501748B2Active noise control systemALPINE ELECTRONICS INC·Filed 2020·Granted Nov 15, 2022·0 cites·14 claims
- 2252US12394403B2Active noise control systemALPS ALPINE CO LTD·Filed 2023·Granted Aug 19, 2025·0 cites·8 claims
- 2351US12356145B2Speaker displacement detection calibration method and speaker displacement detection apparatusALPS ALPINE CO LTD·Filed 2022·Granted Jul 8, 2025·0 cites·6 claims
- 2451US2023292044A1Audio signal processing apparatus, audio system, and method for enhancing low-frequency sound sensationALPS ALPINE CO LTD·Filed 2023·Application pending·0 cites
- 2550US11956604B2In-vehicle communication support systemALPS ALPINE CO LTD·Filed 2022·Granted Apr 9, 2024·0 cites·8 claims
- 2650US6002783AObject checking system capable of checking object irrespective of checking algorithms for reference dataDENSO CORP·Filed 1997·Granted Dec 14, 1999·33 cites·6 claims
- 2747US11482204B2Active noise control systemALPS ALPINE CO LTD·Filed 2021·Granted Oct 25, 2022·0 cites·8 claims
- 2847US11462202B2Active noise control system based on head positionALPS ALPINE CO LTD·Filed 2021·Granted Oct 4, 2022·0 cites·12 claims
- 2946US11463808B2Active noise control systemALPS ALPINE CO LTD·Filed 2021·Granted Oct 4, 2022·0 cites·19 claims
- 3046US11462203B2In-vehicle communication support systemALPS ALPINE CO LTD·Filed 2021·Granted Oct 4, 2022·0 cites·7 claims
- 3146US11462205B2In-vehicle communication support systemALPS ALPINE CO LTD·Filed 2021·Granted Oct 4, 2022·0 cites·5 claims
- 3245US11043202B2Active noise control system, setting method of active noise control system, and audio systemALPINE ELECTRONICS INC·Filed 2019·Granted Jun 22, 2021·0 cites·4 claims
- 3340US11276385B2Noise reduction device, vehicle, noise reduction system, and noise reduction methodALPINE ELECTRONICS INC·Filed 2020·Granted Mar 15, 2022·0 cites·9 claims
- 3440US10109295B2Audio processing apparatus and audio processing methodALPINE ELECTRONICS INC·Filed 2017·Granted Oct 23, 2018·0 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →