Inventor · disambiguated record
Masamitsu Ito
Also filed as: ITO MASAMITSU
48 granted patents·3 pending applications·230 citations·filing 1999–2025
97Inventor score
Top patents by PatentIndex Score
51 records- 0194US11385725B2Electronic erasing device and writing information processing systemWACOM CO LTD·Filed 2021·Granted Jul 12, 2022·5 cites·11 claims
- 0290US12056297B2Electronic pen cartridge and electronic penWACOM CO LTD·Filed 2023·Granted Aug 6, 2024·1 cites·22 claims
- 0387US9513719B2Pen pressure detecting module and position indicatorWACOM CO LTD·Filed 2014·Granted Dec 6, 2016·11 cites·21 claims
- 0487US8149220B2Position detector and display device having the sameFUKUSHIMA MASAMITSU·Filed 2008·Granted Apr 3, 2012·22 cites·4 claims
- 0586US12001618B2Knock-type electronic pen including first and second position indicators located at different ends of a tubular casingWACOM CO LTD·Filed 2022·Granted Jun 4, 2024·1 cites·15 claims
- 0686US8089475B2Display device, sensor panel, position-detecting device, position-inputting device, and computer systemITO MASAMITSU·Filed 2007·Granted Jan 3, 2012·20 cites·20 claims
- 0785US12498807B2Method for adjusting resonance frequency of resonance circuit included in electronic pen, electronic pen, and method for manufacturing electronic penWACOM CO LTD·Filed 2024·Granted Dec 16, 2025·0 cites·9 claims
- 0884USD897341SCartridge for an electronic penWACOM CO LTD·Filed 2018·Granted Sep 29, 2020·22 cites·1 claims
- 0981US11940301B2Position indicatorWACOM CO LTD·Filed 2023·Granted Mar 26, 2024·0 cites·16 claims
- 1081US10866657B2Integrated circuit and electronic penWACOM CO LTD·Filed 2019·Granted Dec 15, 2020·2 cites·13 claims
- 1181US6952201B2Three-dimensional information detecting device, three-dimensional information detecting sensor device, and three-dimensional information indicating deviceWACOM CO LTD·Filed 2002·Granted Oct 4, 2005·31 cites·36 claims
- 1280US12492919B2Position indicatorWACOM CO LTD·Filed 2024·Granted Dec 9, 2025·0 cites·19 claims
- 1380US12111989B2Method for adjusting resonance frequency of resonance circuit included in electronic pen, electronic pen, and method for manufacturing electronic penWACOM CO LTD·Filed 2023·Granted Oct 8, 2024·0 cites·9 claims
- 1480USD1001130SCartridge for an electronic penWACOM CO LTD·Filed 2022·Granted Oct 10, 2023·5 cites·1 claims
- 1580USD978243SCartridge for an electronic penWACOM CO LTD·Filed 2020·Granted Feb 14, 2023·6 cites·1 claims
- 1680USD966268SCartridge for an electronic penWACOM CO LTD·Filed 2020·Granted Oct 11, 2022·6 cites·1 claims
- 1780US10768720B2Electronic penWACOM CO LTD·Filed 2019·Granted Sep 8, 2020·2 cites·20 claims
- 1880US8115738B2Position detecting apparatus, position inputting apparatus, and computer including the sameITO MASAMITSU·Filed 2007·Granted Feb 14, 2012·12 cites·29 claims
- 1979US12340035B2Electronic pen cartridge and electronic penWACOM CO LTD·Filed 2024·Granted Jun 24, 2025·0 cites·22 claims
- 2079USD978966SCartridge for an electronic penWACOM CO LTD·Filed 2020·Granted Feb 21, 2023·7 cites·1 claims
- 2178US10345930B2Magnetic core coil and electronic penWACOM CO LTD·Filed 2017·Granted Jul 9, 2019·2 cites·16 claims
- 2276USD968408SCartridge for an electronic penWACOM CO LTD·Filed 2022·Granted Nov 1, 2022·4 cites·1 claims
- 2376USD947192SCartridge for an electronic penWACOM CO LTD·Filed 2020·Granted Mar 29, 2022·6 cites·1 claims
- 2476USD946576SCartridge for an electronic penWACOM CO LTD·Filed 2020·Granted Mar 22, 2022·6 cites·1 claims
- 2576US2025362762A1Position detection sensor and position detection deviceWACOM CO LTD·Filed 2025·Application pending·0 cites
- 2675US8023723B2Mask pattern dimensional inspection apparatus and methodTOSHIBA KK·Filed 2008·Granted Sep 20, 2011·5 cites·20 claims
- 2773US11762487B2Method for adjusting resonance frequency of resonance circuit included in electronic pen, electronic pen, and method for manufacturing electronic penWACOM CO LTD·Filed 2022·Granted Sep 19, 2023·0 cites·19 claims
- 2873US11669176B2Integrated circuit and electronic penWACOM CO LTD·Filed 2022·Granted Jun 6, 2023·0 cites·12 claims
- 2973US2025258566A1Position detection apparatus configured to detect the positions of multiple position indicators, and position detection methodWACOM CO LTD·Filed 2025·Application pending·0 cites
- 3072US11714498B2Electronic pen core body and electronic penWACOM CO LTD·Filed 2022·Granted Aug 1, 2023·0 cites·20 claims
- 3169US12293038B2Position detection apparatus configured to detect the positions of multiple position indicators, and position detection methodWACOM CO LTD·Filed 2023·Granted May 6, 2025·0 cites·12 claims
- 3269US11327584B2Integrated circuit and electronic penWACOM CO LTD·Filed 2020·Granted May 10, 2022·0 cites·13 claims
- 3367US10160014B2Chuck cleaner and cleaning methodTOSHIBA MEMORY CORP·Filed 2014·Granted Dec 25, 2018·1 cites·9 claims
- 3466US12405679B2Position detection sensor and position detection deviceWACOM CO LTD·Filed 2023·Granted Sep 2, 2025·0 cites·16 claims
- 3566US11662834B2Electronic erasing device and writing information processing systemWACOM CO LTD·Filed 2022·Granted May 30, 2023·0 cites·16 claims
- 3665US11687172B2Electronic pen cartridge and electronic penWACOM CO LTD·Filed 2020·Granted Jun 27, 2023·0 cites·22 claims
- 3764US11573649B2Electronic pen core body and electronic penWACOM CO LTD·Filed 2021·Granted Feb 7, 2023·0 cites·19 claims
- 3863US11599220B2Position detection apparatus configured to detect the positions of multiple position indicators, and position detection methodWACOM CO LTD·Filed 2021·Granted Mar 7, 2023·0 cites·14 claims
- 3963US11169625B2Electronic penWACOM CO LTD·Filed 2020·Granted Nov 9, 2021·0 cites·16 claims
- 4061US11725963B2Position detection sensor and position detection deviceWACOM CO LTD·Filed 2022·Granted Aug 15, 2023·0 cites·14 claims
- 4159US11360584B2Electronic penWACOM CO LTD·Filed 2021·Granted Jun 14, 2022·0 cites·20 claims
- 4257US12169602B2Communication system and terminal apparatusWACOM CO LTD·Filed 2023·Granted Dec 17, 2024·0 cites·17 claims
- 4355US11084069B2Chuck cleaner and cleaning methodTOSHIBA MEMORY CORP·Filed 2018·Granted Aug 10, 2021·0 cites·8 claims
- 4454US7903085B2Electronic device having a position sensorWACOM CORP LTD·Filed 2004·Granted Mar 8, 2011·9 cites·17 claims
- 4554US6928383B2Three-dimensional information detecting system, three-dimensional information detecting device and input device for three-dimensional information detecting systemWACOM CO LTD·Filed 2003·Granted Aug 9, 2005·4 cites·41 claims
- 4654US6433781B1Orientation-detecting apparatus, orientation-detecting method, orientation-detecting sensor device and orientation-designating deviceWACOM CO LTD·Filed 1999·Granted Aug 13, 2002·28 cites·40 claims
- 4749US10459355B2Template substrate and manufacturing method thereofTOSHIBA MEMORY CORP·Filed 2016·Granted Oct 29, 2019·0 cites·8 claims
- 4848US6177530B1Antifouling paint compositionMITSUBISHI RAYON CO·Filed 1999·Granted Jan 23, 2001·12 cites·5 claims
- 4947US2009148782A1Exposure method, photo mask, and reticle stageKONO TAKUYA·Filed 2008·Application pending·0 cites
- 5044US7428469B2Three-dimensional-information detecting system and three-dimensional-information inputting deviceWACOM CO LTD·Filed 2005·Granted Sep 23, 2008·0 cites·26 claims
Showing the top 50 of 51 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →