Inventor · disambiguated record
Kei Kato
Also filed as: KATO KEI
29 granted patents·26 pending applications·115 citations·filing 1994–2025
95Inventor score
Files withSUMITOMO OSAKA CEMENT CO LTD11TOYOTA MOTOR CO LTD10OKI ELECTRIC IND CO LTD9FUJITSU CLIENT COMPUTING LTD5KATO KEI3
Top patents by PatentIndex Score
55 records- 0194US11402594B2Optical waveguide device, and optical modulation device and optical transmission device using sameSUMITOMO OSAKA CEMENT CO LTD·Filed 2021·Granted Aug 2, 2022·3 cites·8 claims
- 0289US11047366B2Driving device, driving device unit and wind turbineNABTESCO CORP·Filed 2017·Granted Jun 29, 2021·6 cites·10 claims
- 0386US10845539B2Optical modulatorSUMITOMO OSAKA CEMENT CO LTD·Filed 2019·Granted Nov 24, 2020·2 cites·3 claims
- 0478US10507999B2Manufacturing method of tank and tank manufacturing apparatusTOYOTA MOTOR CO LTD·Filed 2016·Granted Dec 17, 2019·2 cites·13 claims
- 0574US7110362B2Network management systemOKI ELECTRIC IND CO LTD·Filed 2002·Granted Sep 19, 2006·20 cites·63 claims
- 0673US6625605B1Service attribute management systemOKI ELECTRIC IND CO LTD·Filed 2000·Granted Sep 23, 2003·22 cites·6 claims
- 0772US10298693B2Virtual-machine dynamic allocation system and serverOKI ELECTRIC IND CO LTD·Filed 2016·Granted May 21, 2019·2 cites·5 claims
- 0872US6529907B1Service quality management systemOKI ELECTRIC IND CO LTD·Filed 2000·Granted Mar 4, 2003·21 cites·8 claims
- 0971US7908666B2Content playing system for reliably determining an authentication of a playing terminalOKI ELECTRIC IND CO LTD·Filed 2006·Granted Mar 15, 2011·5 cites·4 claims
- 1070US8751817B2Data processing apparatus and validity verification methodKATO KEI·Filed 2012·Granted Jun 10, 2014·3 cites·11 claims
- 1166US12345933B2Optical device and optical transmission apparatus using sameSUMITOMO OSAKA CEMENT CO LTD·Filed 2023·Granted Jul 1, 2025·0 cites·7 claims
- 1266US7891017B2Ball catching tool for baseball or softballMIZUNO KK·Filed 2006·Granted Feb 22, 2011·7 cites·20 claims
- 1366US2025264190A1Gas supply deviceTOYOTA MOTOR CO LTD·Filed 2025·Application pending·0 cites
- 1466US2025242551A1Method of producing hollow body and apparatus that produces hollow bodyTOYOTA MOTOR CO LTD·Filed 2024·Application pending·0 cites
- 1564US2024218974A1Tank and method of manufacturing the sameTOYOTA MOTOR CO LTD·Filed 2023·Application pending·0 cites
- 1663US12460777B2Method for disconnecting gas tankTOYOTA MOTOR CO LTD·Filed 2024·Granted Nov 4, 2025·0 cites·4 claims
- 1763US10481464B2Optical modulator with wirings of equal lengthSUMITOMO OSAKA CEMENT CO LTD·Filed 2016·Granted Nov 19, 2019·1 cites·5 claims
- 1863US2024272053A1Tank inspection methodTOYOTA MOTOR CO LTD·Filed 2024·Application pending·0 cites
- 1962US12392968B2Optical device, optical modulation device and optical transmission deviceSUMITOMO OSAKA CEMENT CO LTD·Filed 2021·Granted Aug 19, 2025·0 cites·8 claims
- 2062US7660262B2Network management method and communications network systemOKI ELECTRIC IND CO LTD·Filed 2006·Granted Feb 9, 2010·2 cites·4 claims
- 2161US12338950B2Gas tank and method for manufacturing the sameTOYOTA MOTOR CO LTD·Filed 2023·Granted Jun 24, 2025·0 cites·9 claims
- 2261US2025174689A1Hydrogen consumption systemTOYOTA MOTOR CO LTD·Filed 2024·Application pending·0 cites
- 2360US12321047B2Optical modulator and optical transmission device using sameSUMITOMO OSAKA CEMENT CO LTD·Filed 2022·Granted Jun 3, 2025·0 cites·8 claims
- 2460US9213864B2Data processing apparatus and validity verification methodKATO KEI·Filed 2012·Granted Dec 15, 2015·1 cites·9 claims
- 2560US8130446B2Optical diffusing sheet, optical deflecting sheet, and transmission type screenKODAMA DAIJIRO·Filed 2010·Granted Mar 6, 2012·1 cites·4 claims
- 2657US11586061B2Optical waveguide device, and optical modulation device and optical transmission device using sameSUMITOMO OSAKA CEMENT CO LTD·Filed 2021·Granted Feb 21, 2023·0 cites·7 claims
- 2756US7885003B2Optical diffusing sheet, optical deflecting sheet, and transmission type screenDAINIPPON PRINTING CO LTD·Filed 2006·Granted Feb 8, 2011·1 cites·6 claims
- 2856US2003074597A1Repair supporting method, repair supporting server and repair subject multi-functional peripheralTOSHIBA TEC KK·Filed 2002·Application pending·0 cites
- 2954US10247966B2Optical modulator moduleSUMITOMO OSAKA CEMENT CO LTD·Filed 2017·Granted Apr 2, 2019·0 cites·6 claims
- 3054US2010122396A1Sports gloveMIZUNO KK·Filed 2009·Application pending·0 cites
- 3153US7167450B2Network management method and communications network systemOKI ELECTRIC IND CO LTD·Filed 2001·Granted Jan 23, 2007·3 cites·4 claims
- 3252US2025314354A1Gas supply deviceTOYOTA MOTOR CO LTD·Filed 2025·Application pending·0 cites
- 3351US7869250B2ROM semiconductor integrated circuit device having a plurality of common source linesRENESAS ELECTRONICS CORP·Filed 2008·Granted Jan 11, 2011·2 cites·12 claims
- 3450US10761788B2Information processing apparatus, system, and control methodKATO KEI·Filed 2019·Granted Sep 1, 2020·0 cites·11 claims
- 3549US2020334072A1Information processing device, information processing system, and computer program productFUJITSU CLIENT COMPUTING LTD·Filed 2020·Application pending·0 cites
- 3648USD629570SBatting gloveMIZUNO USA INC·Filed 2010·Granted Dec 21, 2010·8 cites·1 claims
- 3747US10401658B2Optical modulator and optical switchSUMITOMO OSAKA CEMENT CO LTD·Filed 2015·Granted Sep 3, 2019·0 cites·6 claims
- 3847US2020175694A1Information processing device and computer programFUJITSU CLIENT COMPUTING LTD·Filed 2019·Application pending·0 cites
- 3946US2020213231A1Information processing apparatus, information processing system, and computer program productFUJITSU CLIENT COMPUTING LTD·Filed 2019·Application pending·0 cites
- 4046US2021064886A1Information processing device and computer program productFUJITSU CLIENT COMPUTING LTD·Filed 2020·Application pending·0 cites
- 4145US2025383577A1Optical device and optical transmission apparatus using the sameSUMITOMO OSAKA CEMENT CO LTD·Filed 2022·Application pending·0 cites
- 4245US2015328769A1Method, apparatus, and medium for teaching industrial robotYASKAWA AMERICA INC·Filed 2014·Application pending·0 cites
- 4345US2015328772A1Method, apparatus, and medium for programming industrial robotYASKAWA AMERICA INC·Filed 2014·Application pending·0 cites
- 4444US2020210714A1Determination device and computer program productFUJITSU CLIENT COMPUTING LTD·Filed 2019·Application pending·0 cites
- 4543US2016339650A1Manufacturing method of tank and tank manufacturing apparatusTOYOTA MOTOR CO LTD·Filed 2016·Application pending·0 cites
- 4642US2014075038A1Communication device, computer-readable storage medium, and communication systemOKI ELECTRIC IND CO LTD·Filed 2013·Application pending·0 cites
- 4742US2002078226A1Datagram transmission deviceFiled 2001·Application pending·0 cites
- 4841US2018284371A1Optical element moduleSUMITOMO OSAKA CEMENT CO LTD·Filed 2018·Application pending·0 cites
- 4940US2018288093A1Sensor management system, sensor management method, recording medium storing sensor management program, and sensor management deviceOKI ELECTRIC IND CO LTD·Filed 2018·Application pending·0 cites
- 5040US2002075874A1Datagram transmission deviceFiled 2001·Application pending·0 cites
Showing the top 50 of 55 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →