Inventor · disambiguated record
Yuji Katsurahira
Also filed as: KATSURAHIRA YUJI
58 granted patents·13 pending applications·1,864 citations·filing 1986–2025
99Inventor score
Top patents by PatentIndex Score
71 records- 0198US9459726B2Position detector and position indicatorWACOM CO LTD·Filed 2015·Granted Oct 4, 2016·24 cites·20 claims
- 0297US10809817B2Position detection device and position indicatorWACOM CO LTD·Filed 2017·Granted Oct 20, 2020·18 cites·24 claims
- 0397US10768723B2Electronic pen and electronic pen main bodyWACOM CO LTD·Filed 2017·Granted Sep 8, 2020·8 cites·15 claims
- 0495US8982044B2Position detector and position indicatorKATSURAHIRA YUJI·Filed 2010·Granted Mar 17, 2015·22 cites·21 claims
- 0594US10296039B2Analog circuit, position indicator, and systemWACOM CO LTD·Filed 2017·Granted May 21, 2019·13 cites·10 claims
- 0694US8373683B2Position input device and computer systemWACOM CO LTD·Filed 2012·Granted Feb 12, 2013·21 cites·34 claims
- 0794US8212550B2Position indicator, circuit component and input deviceKATSURAHIRA YUJI·Filed 2010·Granted Jul 3, 2012·45 cites·17 claims
- 0894US8154525B2Position detecting device and position detecting methodKATSURAHIRA YUJI·Filed 2008·Granted Apr 10, 2012·39 cites·21 claims
- 0994US8094140B2Position input device and computer systemKATSURAHIRA YUJI·Filed 2010·Granted Jan 10, 2012·23 cites·31 claims
- 1093US8253702B2Position detecting apparatus and position pointerKATSURAHIRA YUJI·Filed 2009·Granted Aug 28, 2012·28 cites·15 claims
- 1193US8063322B2Position indicator and coordinate input deviceKATSURAHIRA YUJI·Filed 2008·Granted Nov 22, 2011·34 cites·21 claims
- 1293US5600105APosition detecting device and position pointing device thereforWACOM CO LTD·Filed 1994·Granted Feb 4, 1997·186 cites·17 claims
- 1392US7474300B2Position detecting apparatus and position pointerWACOM CO LTD·Filed 2004·Granted Jan 6, 2009·69 cites·18 claims
- 1490US8368669B2Position detecting device and computer including the sameWACOM CO LTD·Filed 2007·Granted Feb 5, 2013·22 cites·17 claims
- 1589US8089008B2Position indicatorKATSURAHIRA YUJI·Filed 2008·Granted Jan 3, 2012·21 cites·11 claims
- 1689US5679930APosition pointing device including a controller for an AC field emitter in accordance with a binary codeWACOM CO LTD·Filed 1994·Granted Oct 21, 1997·134 cites·17 claims
- 1789US2025341925A1Sensor controller and stylusWACOM CO LTD·Filed 2025·Application pending·0 cites
- 1888US9600096B2Position detecting device and position detecting methodWACOM CO LTD·Filed 2015·Granted Mar 21, 2017·6 cites·14 claims
- 1986US12271566B2Position detection device, and position detection method based on electromagnetic inductive coupling and capacitive couplingWACOM CO LTD·Filed 2024·Granted Apr 8, 2025·0 cites·10 claims
- 2086US6005555APosition detecting apparatus and method for detecting position pointing deviceWACOM CO LTD·Filed 1997·Granted Dec 21, 1999·142 cites·33 claims
- 2186US5672852APosition pointing device including a memory and a position detecting device coupled by AC fields to the pointing deviceWACOM CO LTD·Filed 1995·Granted Sep 30, 1997·134 cites·19 claims
- 2285US12386466B2Sensor controller and stylusWACOM CO LTD·Filed 2024·Granted Aug 12, 2025·0 cites·5 claims
- 2385US8847928B2Coil, position indicator, position detecting device, and coil winding methodKATSURAHIRA YUJI·Filed 2010·Granted Sep 30, 2014·6 cites·12 claims
- 2485US5661269APosition pointing device having resonant circuit with sequentially changed characteristics and combination thereof with position detecting deviceWACOM CO LTD·Filed 1995·Granted Aug 26, 1997·125 cites·26 claims
- 2585US4709209AMagnetostrictive vibration wave position detecting apparatus with variable threshold detecting valvesWACOM CO LTD·Filed 1986·Granted Nov 24, 1987·45 cites·3 claims
- 2683US9600117B2Position detector and position indicatorWACOM CO LTD·Filed 2016·Granted Mar 21, 2017·2 cites·21 claims
- 2783US6810351B2Position detectorWACOM CO LTD·Filed 2002·Granted Oct 26, 2004·36 cites·16 claims
- 2882US5898136APosition detecting apparatus having a tablet and a position pointing deviceWACOM CO LTD·Filed 1996·Granted Apr 27, 1999·104 cites·15 claims
- 2981US12067198B2Sensor controller and stylusWACOM CO LTD·Filed 2023·Granted Aug 20, 2024·0 cites·14 claims
- 3081US12008206B2Position detection device, and position detection method based on electromagnetic inductive coupling and capacitive couplingWACOM CO LTD·Filed 2023·Granted Jun 11, 2024·0 cites·20 claims
- 3180US11216087B2Position detecting device and position indicator thereofWACOM CO LTD·Filed 2018·Granted Jan 4, 2022·2 cites·15 claims
- 3279US9046978B2Position detecting deviceWACOM CO LTD·Filed 2013·Granted Jun 2, 2015·5 cites·11 claims
- 3379US2025165113A1Position detection device, and position detection method based on electromagnetic inductive coupling and capacitive couplingWACOM CO LTD·Filed 2025·Application pending·0 cites
- 3479US2025165112A1Position detection device, and position detection method based on electromagnetic inductive coupling and capacitive couplingWACOM CO LTD·Filed 2025·Application pending·0 cites
- 3579US2025165111A1Position detection device, and position detection method based on electromagnetic inductive coupling and capacitive couplingWACOM CO LTD·Filed 2025·Application pending·0 cites
- 3678US5644108APosition detection device utilizing electromagnetic inductionWACOM CO LTD·Filed 1995·Granted Jul 1, 1997·85 cites·89 claims
- 3776US11644936B2Position detection device, and position detection method based on electromagnetic inductive coupling and capacitive couplingWACOM CO LTD·Filed 2021·Granted May 9, 2023·0 cites·11 claims
- 3876US10795491B2Position detecting device that selects electrodes having different intervals therebetween while different signals are detectedWACOM CO LTD·Filed 2017·Granted Oct 6, 2020·2 cites·20 claims
- 3976US6930674B2Position detector and position indicator thereforWACOM CO LTD·Filed 2002·Granted Aug 16, 2005·23 cites·19 claims
- 4075US11714511B2Sensor controller and stylusWACOM CO LTD·Filed 2021·Granted Aug 1, 2023·0 cites·14 claims
- 4175US2023092497A1Position indicator, position indicating device, and detection method of tilt of position indicatorWACOM CO LTD·Filed 2022·Application pending·0 cites
- 4274US10379642B1Positioning indicating module and stylus penWACOM CO LTD·Filed 2019·Granted Aug 13, 2019·1 cites·15 claims
- 4374US7149647B2Position pointing deviceWACOM CO LTD·Filed 2004·Granted Dec 12, 2006·19 cites·18 claims
- 4474US5706000APosition detecting device and position pointing device thereforWACOM CO LTD·Filed 1994·Granted Jan 6, 1998·61 cites·15 claims
- 4572US5682019APosition detecting apparatus and position pointing device including elapsed time period build up detectorWACOM CO LTD·Filed 1995·Granted Oct 28, 1997·62 cites·7 claims
- 4671US11262875B2Position detection device and position indicatorWACOM CO LTD·Filed 2020·Granted Mar 1, 2022·0 cites·24 claims
- 4771US11249610B2Position detection device, and position detection method based on electromagnetic inductive coupling and capacitive couplingWACOM CO LTD·Filed 2020·Granted Feb 15, 2022·0 cites·15 claims
- 4871US5629500APosition pointing device, system and method employing AC fieldWACOM CO LTD·Filed 1995·Granted May 13, 1997·60 cites·30 claims
- 4970US10331243B2Position indicating module and stylus penWACOM CO LTD·Filed 2016·Granted Jun 25, 2019·1 cites·15 claims
- 5070US6239789B1Position detecting method and apparatus for detecting a plurality of position indicatorsWACOM CO LTD·Filed 1998·Granted May 29, 2001·60 cites·37 claims
Showing the top 50 of 71 patent records by PatentIndex Score.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →