Inventor · disambiguated record
Hiroyuki Fujitsuka
Also filed as: FUJITSUKA HIROYUKI
27 granted patents·1 pending application·399 citations·filing 2001–2021
96Inventor score
Top patents by PatentIndex Score
28 records- 0196US8913041B2Position pointer, variable capacitor and inputting apparatusFUKUSHIMA YASUYUKI·Filed 2010·Granted Dec 16, 2014·55 cites·10 claims
- 0295US7778795B2Position indicator, variable capacitor, position input device and computer systemWACOM CO LTD·Filed 2008·Granted Aug 17, 2010·46 cites·18 claims
- 0394US10589562B2Position pointerWACOM CO LTD·Filed 2017·Granted Mar 17, 2020·5 cites·14 claims
- 0494US8212550B2Position indicator, circuit component and input deviceKATSURAHIRA YUJI·Filed 2010·Granted Jul 3, 2012·45 cites·17 claims
- 0593US10503281B2Position indicatorWACOM CO LTD·Filed 2017·Granted Dec 10, 2019·8 cites·30 claims
- 0693US8674967B2Position indicatorFUKUSHIMA YASUYUKI·Filed 2008·Granted Mar 18, 2014·27 cites·8 claims
- 0792US8525816B2Position pointer, variable capacitor and inputting apparatusFUKUSHIMA YASUYUKI·Filed 2010·Granted Sep 3, 2013·18 cites·13 claims
- 0890US8525530B2Variable capacitor and position indicatorFUKUSHIMA YASUYUKI·Filed 2011·Granted Sep 3, 2013·9 cites·20 claims
- 0989US10427449B2Writing instrument and electronic pen body sectionWACOM CO LTD·Filed 2017·Granted Oct 1, 2019·7 cites·19 claims
- 1088US11010002B2Electronic pen and cartridge for electronic penWACOM CO LTD·Filed 2020·Granted May 18, 2021·3 cites·15 claims
- 1187US8304671B2Position indicator and coordinate input deviceFUKUSHIMA YASUYUKI·Filed 2008·Granted Nov 6, 2012·18 cites·12 claims
- 1286US8723842B2Position pointing device and hand-held electronic applianceKANEDA TAKENORI·Filed 2005·Granted May 13, 2014·23 cites·8 claims
- 1384US6801192B2Pen-shaped coordinate pointing deviceWACOM CO LTD·Filed 2001·Granted Oct 5, 2004·39 cites·7 claims
- 1483US8587565B2Position indicator, variable capacitor and input deviceFUKUSHIMA YASUYUKI·Filed 2009·Granted Nov 19, 2013·12 cites·13 claims
- 1583US6853369B2Variable capacity condenser and pointerWACOM CO LTD·Filed 2001·Granted Feb 8, 2005·31 cites·19 claims
- 1681US9151586B2Position indicatorWACOM CO LTD·Filed 2013·Granted Oct 6, 2015·5 cites·20 claims
- 1781US8711130B2Position pointer, variable capacitor and inputting apparatusWACOM CO LTD·Filed 2013·Granted Apr 29, 2014·5 cites·20 claims
- 1879US6937231B2Pen-shaped coordinate pointing deviceWACOM CO LTD·Filed 2002·Granted Aug 30, 2005·26 cites·13 claims
- 1978US8184109B2Coordinate input device, position indicator and variable capacitorFUKUSHIMA YASUYUKI·Filed 2008·Granted May 22, 2012·9 cites·18 claims
- 2075US9939931B2Position indicator and position detecting deviceWACOM CO LTD·Filed 2016·Granted Apr 10, 2018·2 cites·12 claims
- 2168US8884932B2Pen type coordinate indicatorWACOM CO LTD·Filed 2013·Granted Nov 11, 2014·2 cites·20 claims
- 2266USRE41521EVariable capacity condenser and pointerWACOM CO LTD·Filed 2007·Granted Aug 17, 2010·3 cites·56 claims
- 2362US9377880B2Position indicatorWACOM CO LTD·Filed 2014·Granted Jun 28, 2016·1 cites·20 claims
- 2460US11269464B2Electronic pen and cartridge for electronic penWACOM CO LTD·Filed 2021·Granted Mar 8, 2022·0 cites·15 claims
- 2551US9377881B2Position indicatorWACOM CO LTD·Filed 2015·Granted Jun 28, 2016·0 cites·20 claims
- 2649US9261977B2Electronic circuit and position indicatorWACOM CO LTD·Filed 2013·Granted Feb 16, 2016·0 cites·19 claims
- 2746US8525531B2Variable capacitor, position indicator, and input deviceFUKUSHIMA YASUYUKI·Filed 2011·Granted Sep 3, 2013·0 cites·19 claims
- 2843US2006060393A1Coordinate indicatorFUKUSHIMA YASUYUKI·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →