Inventor · disambiguated record
Kohei Tanaka
Also filed as: TANAKA KOHEI
78 granted patents·38 pending applications·304 citations·filing 1988–2025
98Inventor score
Top patents by PatentIndex Score
116 records- 0197US9760102B2Active-matrix substrate, display panel and display device including the sameSHARP KK·Filed 2016·Granted Sep 12, 2017·12 cites·25 claims
- 0296US11809645B2Electronic penWACOM CO LTD·Filed 2022·Granted Nov 7, 2023·3 cites·12 claims
- 0396US11379057B2Electronic penWACOM CO LTD·Filed 2020·Granted Jul 5, 2022·4 cites·16 claims
- 0494US11429207B2Capacitive-coupling electronic penWACOM CO LTD·Filed 2021·Granted Aug 30, 2022·4 cites·14 claims
- 0594US11150750B2Electronic pen and electronic pen main body unitWACOM CO LTD·Filed 2020·Granted Oct 19, 2021·3 cites·20 claims
- 0694US9798339B2Active-matrix substrate, display panel and display device including the sameSHARP KK·Filed 2013·Granted Oct 24, 2017·12 cites·14 claims
- 0793US10761620B2Electronic penWACOM CO LTD·Filed 2018·Granted Sep 1, 2020·5 cites·9 claims
- 0893US10503281B2Position indicatorWACOM CO LTD·Filed 2017·Granted Dec 10, 2019·8 cites·30 claims
- 0992US11237652B2Electronic penWACOM CO LTD·Filed 2020·Granted Feb 1, 2022·3 cites·5 claims
- 1091US12393289B2Electronic pen with electronic pen body part having button switch and pusher part inserted into insertion part formed in operatorWACOM CO LTD·Filed 2024·Granted Aug 19, 2025·1 cites·10 claims
- 1191US11906384B2Pressure detection device with improved load and response accuracyWACOM CO LTD·Filed 2020·Granted Feb 20, 2024·2 cites·8 claims
- 1291US9069412B2Touch-sensor-equipped display device comrpising photodetecting elementsTANAKA KOHEI·Filed 2011·Granted Jun 30, 2015·9 cites·7 claims
- 1391US8803791B2Display deviceSUGITA YASUHIRO·Filed 2010·Granted Aug 12, 2014·10 cites·17 claims
- 1490US12032757B2Electronic pen with electronic pen body part having button switch and pusher part inserted into insertion part formed in operatorWACOM CO LTD·Filed 2023·Granted Jul 9, 2024·1 cites·8 claims
- 1590US10365674B2Active-matrix substrate, display panel and display device including the sameSHARP KK·Filed 2017·Granted Jul 30, 2019·3 cites·23 claims
- 1690US7635850B2Ion implanterNISSIN ION EQUIPMENT CO LTD·Filed 2007·Granted Dec 22, 2009·18 cites·20 claims
- 1789US10427449B2Writing instrument and electronic pen body sectionWACOM CO LTD·Filed 2017·Granted Oct 1, 2019·7 cites·19 claims
- 1888US11010002B2Electronic pen and cartridge for electronic penWACOM CO LTD·Filed 2020·Granted May 18, 2021·3 cites·15 claims
- 1986US4903169AShielded high frequency apparatus having partitioned shield case, and method of manufacture thereofMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1988·Granted Feb 20, 1990·61 cites·15 claims
- 2086US2025110587A1Electronic penWACOM CO LTD·Filed 2024·Application pending·0 cites
- 2185US10944940B1Intercom system for collective housingAIPHONE CO LTD·Filed 2020·Granted Mar 9, 2021·3 cites·7 claims
- 2285US10802616B2Electronic penWACOM CO LTD·Filed 2019·Granted Oct 13, 2020·2 cites·17 claims
- 2385US10534038B2Method and system for estimating state of charge or depth of discharge of battery, and method and system for evaluating health of batteryJAPAN AEROSPACE EXPLORATION·Filed 2016·Granted Jan 14, 2020·9 cites·20 claims
- 2485US2025348159A1Electronic pen with electronic pen body part having button switch and pusher part inserted into insertion part formed in operatorWACOM CO LTD·Filed 2025·Application pending·0 cites
- 2584US10579164B2Electronic pen and electronic pen main body sectionWACOM CO LTD·Filed 2018·Granted Mar 3, 2020·4 cites·18 claims
- 2683US2025138653A1Electronic penWACOM CO LTD·Filed 2024·Application pending·0 cites
- 2782US12204702B2Electronic penWACOM CO LTD·Filed 2023·Granted Jan 21, 2025·0 cites·15 claims
- 2882US8658957B2Sensor circuit and display apparatusBROWN CHRISTOPHER·Filed 2010·Granted Feb 25, 2014·3 cites·7 claims
- 2980US12216843B2Electronic penWACOM CO LTD·Filed 2023·Granted Feb 4, 2025·0 cites·16 claims
- 3080US11216088B2Electronic penWACOM CO LTD·Filed 2018·Granted Jan 4, 2022·2 cites·20 claims
- 3179US8519363B2Wafer handling method and ion implanterTANAKA KOHEI·Filed 2010·Granted Aug 27, 2013·5 cites·19 claims
- 3279US2025348160A1Electronic penWACOM CO LTD·Filed 2025·Application pending·0 cites
- 3378US10901442B2Active-matrix substrate, display panel and display device including the sameSHARP KK·Filed 2019·Granted Jan 26, 2021·1 cites·6 claims
- 3478US9064460B2Display device with touch sensor including photosensorSUGITA YASUHIRO·Filed 2011·Granted Jun 23, 2015·6 cites·14 claims
- 3577US9745166B2Bobbin for winding optical fiber and optical fiberFUJIKURA LTD·Filed 2016·Granted Aug 29, 2017·3 cites·17 claims
- 3676US12449917B2Electronic penWACOM CO LTD·Filed 2024·Granted Oct 21, 2025·0 cites·23 claims
- 3776US10365733B2Electronic penWACOM CO LTD·Filed 2017·Granted Jul 30, 2019·1 cites·22 claims
- 3875US12203825B2Pressure detection device with improved load and response accuracyWACOM CO LTD·Filed 2024·Granted Jan 21, 2025·0 cites·9 claims
- 3975US8032769B2Controlling apparatus, controlling method, computer readable medium, image forming apparatus and information processing apparatusFUJI XEROX CO LTD·Filed 2008·Granted Oct 4, 2011·8 cites·19 claims
- 4074US12314490B2Electronic penWACOM CO LTD·Filed 2024·Granted May 27, 2025·0 cites·18 claims
- 4174US12216842B2Electronic penWACOM CO LTD·Filed 2023·Granted Feb 4, 2025·0 cites·10 claims
- 4274US11853487B2Electronic penWACOM CO LTD·Filed 2022·Granted Dec 26, 2023·0 cites·16 claims
- 4372USD1066341SDigital stylus with transparent nibWACOM CO LTD·Filed 2023·Granted Mar 11, 2025·4 cites·1 claims
- 4472US10878772B2Apparatus and method for testing for abnormal control by a display control apparatusMITSUBISHI ELECTRIC CORP·Filed 2016·Granted Dec 29, 2020·2 cites·8 claims
- 4572US2025258554A1Electronic penWACOM CO LTD·Filed 2025·Application pending·0 cites
- 4672US2025147606A1Electronic penWACOM CO LTD·Filed 2025·Application pending·0 cites
- 4771US12229352B2Electronic pen and core body for electronic penWACOM CO LTD·Filed 2023·Granted Feb 18, 2025·0 cites·19 claims
- 4871US2021103307A1Active-matrix substrate, display panel and display device including the sameSHARP KK·Filed 2020·Application pending·0 cites
- 4970US12461609B2Electronic penWACOM CO LTD·Filed 2024·Granted Nov 4, 2025·0 cites·6 claims
- 5070US12229350B2Electronic penWACOM CO LTD·Filed 2021·Granted Feb 18, 2025·0 cites·21 claims
Showing the top 50 of 116 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →