Inventor · disambiguated record
Kei Katou
Also filed as: KATOU KEI
26 granted patents·1 pending application·165 citations·filing 2002–2021
95Inventor score
Top patents by PatentIndex Score
27 records- 0194US10348007B2Optical control element moduleSUMITOMO OSAKA CEMENT CO LTD·Filed 2018·Granted Jul 9, 2019·17 cites·6 claims
- 0293US11500264B2Optical waveguide device with reinforcement member for optical fiber and waveguide portionSUMITOMO OSAKA CEMENT CO LTD·Filed 2021·Granted Nov 15, 2022·2 cites·6 claims
- 0392US10078253B2Optical modulatorSUMITOMO OSAKA CEMENT CO LTD·Filed 2016·Granted Sep 18, 2018·6 cites·5 claims
- 0491US10268057B2FPC-attached optical modulator and optical transmission apparatus using sameSUMITOMO OSAKA CEMENT CO LTD·Filed 2017·Granted Apr 23, 2019·4 cites·11 claims
- 0590US9335570B2Optical-waveguide-element moduleSUMITOMO OSAKA CEMENT CO LTD·Filed 2012·Granted May 10, 2016·7 cites·10 claims
- 0689US9897825B2Optical modulatorSUMITOMO OSAKA CEMENT CO LTD·Filed 2017·Granted Feb 20, 2018·3 cites·5 claims
- 0787US7428468B2Monitoring apparatusSUMITOMO OSAKA CEMENT CO LTD·Filed 2002·Granted Sep 23, 2008·76 cites·48 claims
- 0885US10091881B1Connection structure between optical device and circuit substrate, and optical transmission apparatus using the sameSUMITOMO OSAKA CEMENT CO LTD·Filed 2018·Granted Oct 2, 2018·4 cites·6 claims
- 0985US10025121B2Optical waveguide element moduleSUMITOMO OSAKA CEMENT CO LTD·Filed 2015·Granted Jul 17, 2018·3 cites·10 claims
- 1083US10527874B2Optical modulatorSUMITOMO OSAKA CEMENT CO LTD·Filed 2017·Granted Jan 7, 2020·2 cites·13 claims
- 1183US9897826B2Optical modulatorSUMITOMO OSAKA CEMENT CO LTD·Filed 2017·Granted Feb 20, 2018·2 cites·2 claims
- 1278US8909006B2Optical waveguide deviceMIYAZAKI NORIKAZU·Filed 2011·Granted Dec 9, 2014·6 cites·17 claims
- 1377US10558064B2Optical communication module and optical modulator used thereinSUMITOMO OSAKA CEMENT CO LTD·Filed 2018·Granted Feb 11, 2020·1 cites·6 claims
- 1473US10162201B2Optical modulatorSUMITOMO OSAKA CEMENT CO LTD·Filed 2015·Granted Dec 25, 2018·1 cites·5 claims
- 1572US11204507B2Positioning member having cutout portion and polarization beam combining module using positioning memberSUMITOMO OSAKA CEMENT CO LTD·Filed 2019·Granted Dec 21, 2021·1 cites·6 claims
- 1672US7630537B2Three-dimensional shape-measuring deviceSUMITOMO OSAKA CEMENT CO LTD·Filed 2004·Granted Dec 8, 2009·18 cites·13 claims
- 1770US11109480B2Flexible printed circuit and optical deviceSUMITOMO OSAKA CEMENT CO LTD·Filed 2019·Granted Aug 31, 2021·1 cites·6 claims
- 1861US10502982B2Optical modulatorSUMITOMO OSAKA CEMENT CO LTD·Filed 2019·Granted Dec 10, 2019·0 cites·4 claims
- 1960US2020033692A1Optical waveguide deviceSUMITOMO OSAKA CEMENT CO LTD·Filed 2019·Application pending·0 cites
- 2058US8923673B2Optical modulatorKATOU KEI·Filed 2012·Granted Dec 30, 2014·1 cites·20 claims
- 2155US10365506B2Optical modulatorSUMITOMO OSAKA CEMENT CO LTD·Filed 2016·Granted Jul 30, 2019·0 cites·5 claims
- 2255US9885889B2Optical modulatorSUMITOMO OSAKA CEMENT CO LTD·Filed 2017·Granted Feb 6, 2018·0 cites·7 claims
- 2353US9310543B2Patterned retardation film for three-dimensional display and method for producing mold for patterned alignment film for three-dimensional displayKATOU KEI·Filed 2012·Granted Apr 12, 2016·1 cites·22 claims
- 2452US9869888B2Optical modulatorSUMITOMO OSAKA CEMENT CO LTD·Filed 2017·Granted Jan 16, 2018·0 cites·3 claims
- 2552US7545279B2Condition-analyzing deviceSUMITOMO OSAKA CEMENT CO LTD·Filed 2004·Granted Jun 9, 2009·9 cites·8 claims
- 2650US11022763B2Optical moduleSUMITOMO OSAKA CEMENT CO LTD·Filed 2019·Granted Jun 1, 2021·0 cites·2 claims
- 2737US10671717B2Communication device, communication method and computer programKDDI CORP·Filed 2016·Granted Jun 2, 2020·0 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →