Inventor · disambiguated record
Sadao Yamamoto
Also filed as: YAMAMOTO SADAO
120 granted patents·16 pending applications·954 citations·filing 1976–2025
99Inventor score
Top patents by PatentIndex Score
136 records- 0198US12079406B2Communication method executed between active pen and sensor controller, and active penWACOM CO LTD·Filed 2023·Granted Sep 3, 2024·4 cites·8 claims
- 0298US11775090B2Position indicatorWACOM CO LTD·Filed 2022·Granted Oct 3, 2023·3 cites·31 claims
- 0398US11600169B2Method carried out in system including active stylus and sensor controller, sensor controller, and active stylusWACOM CO LTD·Filed 2021·Granted Mar 7, 2023·4 cites·10 claims
- 0498US11347332B2Position indicatorWACOM CO LTD·Filed 2020·Granted May 31, 2022·8 cites·18 claims
- 0598US9448646B1System and method for bidirectional communication between stylus and stylus sensor controllerWACOM CO LTD·Filed 2016·Granted Sep 20, 2016·28 cites·27 claims
- 0698US8587535B2Pointer detection apparatus and pointer detection methodODA YASUO·Filed 2010·Granted Nov 19, 2013·227 cites·26 claims
- 0797US11853485B2Pointer, position detection apparatus and position detection methodWACOM CO LTD·Filed 2021·Granted Dec 26, 2023·3 cites·23 claims
- 0897US11397482B2Method to be performed by stylus and sensor controller, stylus, and sensor controllerWACOM CO LTD·Filed 2021·Granted Jul 26, 2022·6 cites·19 claims
- 0997US11340720B2Electronic device for selective transmission of downlink signal to sensor controllerWACOM CO LTD·Filed 2020·Granted May 24, 2022·6 cites·19 claims
- 1097US11132895B2Method carried out in system including active stylus and sensor controller, sensor controller, and active stylusWACOM CO LTD·Filed 2021·Granted Sep 28, 2021·4 cites·10 claims
- 1197US10861323B2Method carried out in system including active stylus and sensor controller, sensor controller, and active stylusWACOM CO LTD·Filed 2019·Granted Dec 8, 2020·17 cites·11 claims
- 1297US9639183B2System and method for bidirectional communication between stylus and stylus sensor controllerWACOM CO LTD·Filed 2016·Granted May 2, 2017·15 cites·18 claims
- 1396US11720189B2Communication method executed between active pen and sensor controller, and active penWACOM CO LTD·Filed 2022·Granted Aug 8, 2023·3 cites·10 claims
- 1496US11397480B2Stylus and sensor control circuitWACOM CO LTD·Filed 2021·Granted Jul 26, 2022·3 cites·14 claims
- 1596US11360586B2Communication method executed between active pen and sensor controller, and active penWACOM CO LTD·Filed 2020·Granted Jun 14, 2022·4 cites·21 claims
- 1696US11086420B2Position indicatorWACOM CO LTD·Filed 2020·Granted Aug 10, 2021·4 cites·23 claims
- 1796US11004330B2Method carried out in system including active stylus and sensor controller, sensor controller, and active stylusWACOM CO LTD·Filed 2020·Granted May 11, 2021·4 cites·10 claims
- 1896US10509491B2Position indicatorWACOM CO LTD·Filed 2017·Granted Dec 17, 2019·13 cites·19 claims
- 1996US10452168B2Sensor controller, position indicator, and position detecting systemWACOM CO LTD·Filed 2018·Granted Oct 22, 2019·9 cites·16 claims
- 2096US8963889B2Pointer, position detection apparatus and position detection methodODA YASUO·Filed 2010·Granted Feb 24, 2015·25 cites·34 claims
- 2195US12229356B2Position indicatorWACOM CO LTD·Filed 2023·Granted Feb 18, 2025·1 cites·20 claims
- 2295US12087153B2Method carried out in system including active stylus and sensor controller, sensor controller, and active stylusWACOM CO LTD·Filed 2023·Granted Sep 10, 2024·2 cites·20 claims
- 2395US11099661B2Pointer, position detection apparatus and position detection methodWACOM CO LTD·Filed 2019·Granted Aug 24, 2021·6 cites·19 claims
- 2495US10606382B2Stylus and sensor controller for bi-directional communication using stylus identifierWACOM CO LTD·Filed 2017·Granted Mar 31, 2020·9 cites·18 claims
- 2595US10061407B2Stylus and controllerWACOM CO LTD·Filed 2017·Granted Aug 28, 2018·13 cites·12 claims
- 2695US9785262B2System and method for bidirectional communication between stylus and stylus sensor controllerWACOM CO LTD·Filed 2016·Granted Oct 10, 2017·9 cites·30 claims
- 2794US12111995B2Method and device for deriving pen position and reporting pen position to host computerWACOM CO LTD·Filed 2023·Granted Oct 8, 2024·2 cites·20 claims
- 2894US11989377B2Pen and sensor controllerWACOM CO LTD·Filed 2021·Granted May 21, 2024·2 cites·20 claims
- 2994US11714500B2Method to be performed by stylus and sensor controller, stylus, and sensor controllerWACOM CO LTD·Filed 2022·Granted Aug 1, 2023·2 cites·20 claims
- 3094US11675467B2Position indicator including conductor that surrounds conductive core body and is selectively electrically coupled to charging element of power supply circuitWACOM CO LTD·Filed 2022·Granted Jun 13, 2023·2 cites·20 claims
- 3194US10866660B2Position indicatorWACOM CO LTD·Filed 2019·Granted Dec 15, 2020·6 cites·20 claims
- 3294US10732735B2Stylus and controllerWACOM CO LTD·Filed 2019·Granted Aug 4, 2020·9 cites·14 claims
- 3394US10627927B2Position indicatorWACOM CO LTD·Filed 2017·Granted Apr 21, 2020·8 cites·20 claims
- 3494US10222880B2Stylus and controllerWACOM CO LTD·Filed 2018·Granted Mar 5, 2019·10 cites·18 claims
- 3594US9632599B2Pointer, position detection apparatus and position detection methodWACOM CO LTD·Filed 2014·Granted Apr 25, 2017·11 cites·20 claims
- 3693US11137842B2Stylus and sensor controllerWACOM CO LTD·Filed 2019·Granted Oct 5, 2021·6 cites·10 claims
- 3793US10852895B2Sensor controller, position indicator, and position detecting systemWACOM CO LTD·Filed 2019·Granted Dec 1, 2020·4 cites·11 claims
- 3893US10775910B2Sensor controller, position indicator, and position detecting systemWACOM CO LTD·Filed 2019·Granted Sep 15, 2020·4 cites·9 claims
- 3993US10108277B2Pointer, position detection apparatus and position detection methodWACOM CO LTD·Filed 2016·Granted Oct 23, 2018·6 cites·25 claims
- 4093US8253702B2Position detecting apparatus and position pointerKATSURAHIRA YUJI·Filed 2009·Granted Aug 28, 2012·28 cites·15 claims
- 4193US2025383743A1Sensor controller, position indicator, and position detecting systemWACOM CO LTD·Filed 2025·Application pending·0 cites
- 4292US7474300B2Position detecting apparatus and position pointerWACOM CO LTD·Filed 2004·Granted Jan 6, 2009·69 cites·18 claims
- 4391US2025370556A1Position indicatorWACOM CO LTD·Filed 2025·Application pending·0 cites
- 4490US8749501B2Pointer detection apparatus and detection sensorODA YASUO·Filed 2010·Granted Jun 10, 2014·16 cites·20 claims
- 4590US7685538B2Method of triggering functions in a computer application using a digitizer having a stylus and a digitizer systemWACOM CO LTD·Filed 2003·Granted Mar 23, 2010·77 cites·40 claims
- 4690US4057608AProcess of continuous manufacture of light-weight foamed concreteSHOWA DENKO KK·Filed 1976·Granted Nov 8, 1977·52 cites·8 claims
- 4789US9606640B2Pointer, position detection apparatus and position detection methodWACOM CO LTD·Filed 2014·Granted Mar 28, 2017·5 cites·17 claims
- 4889US9529456B2Pointer, position detection apparatus and position detection methodWACOM CO LTD·Filed 2014·Granted Dec 27, 2016·5 cites·16 claims
- 4988US12411580B2Sensor controller, position indicator, and position detecting systemWACOM CO LTD·Filed 2024·Granted Sep 9, 2025·0 cites·11 claims
- 5088US11144140B2System and method for bidirectional communication between stylus and stylus sensor controllerWACOM CO LTD·Filed 2020·Granted Oct 12, 2021·1 cites·20 claims
Showing the top 50 of 136 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →