Inventor · disambiguated record
Naoki Izumi
Also filed as: IZUMI NAOKI
40 granted patents·15 pending applications·167 citations·filing 2001–2024
97Inventor score
Top patents by PatentIndex Score
55 records- 0190US7759798B2Semiconductor device and method for manufacturing the sameRENESAS TECH CORP·Filed 2009·Granted Jul 20, 2010·15 cites·8 claims
- 0290US7598154B2Manufacturing method of semiconductor deviceRENESAS TECH CORP·Filed 2006·Granted Oct 6, 2009·17 cites·14 claims
- 0389US11156537B2Hardness testerMITUTOYO CORP·Filed 2019·Granted Oct 26, 2021·3 cites·2 claims
- 0486US8217443B2Semiconductor device including a floating gateIZUMI NAOKI·Filed 2009·Granted Jul 10, 2012·10 cites·10 claims
- 0585US8652880B2Semiconductor device and method of manufacturing sameBANDO KOJI·Filed 2012·Granted Feb 18, 2014·8 cites·3 claims
- 0685US7998839B2Semiconductor device and method for manufacturing the sameRENESAS ELECTRONICS CORP·Filed 2010·Granted Aug 16, 2011·6 cites·5 claims
- 0782US8258604B2Semiconductor device and method of manufacturing sameBANDO KOJI·Filed 2009·Granted Sep 4, 2012·10 cites·11 claims
- 0880US11353312B2Roughness testerMITUTOYO CORP·Filed 2020·Granted Jun 7, 2022·1 cites·6 claims
- 0980US10615275B2Semiconductor device and method of manufacturing semiconductor deviceROHM CO LTD·Filed 2019·Granted Apr 7, 2020·1 cites·19 claims
- 1079US8232650B2Semiconductor device and method for manufacturing the sameCHIBAHARA HIROYUKI·Filed 2011·Granted Jul 31, 2012·4 cites·20 claims
- 1177US7923297B2Manufacturing method of semiconductor deviceRENESAS ELECTRONICS CORP·Filed 2009·Granted Apr 12, 2011·6 cites·3 claims
- 1275US8129785B2Semiconductor deviceIZUMI NAOKI·Filed 2008·Granted Mar 6, 2012·8 cites·12 claims
- 1373US11075297B2Semiconductor device and method of manufacturing semiconductor deviceROHM CO LTD·Filed 2020·Granted Jul 27, 2021·0 cites·19 claims
- 1472US7982264B2Semiconductor deviceROHM CO LTD·Filed 2007·Granted Jul 19, 2011·5 cites·18 claims
- 1571US8692308B2Semiconductor device including a floating gateIZUMI NAOKI·Filed 2012·Granted Apr 8, 2014·2 cites·14 claims
- 1670US8174066B2Semiconductor device and method of manufacturing semiconductor deviceIZUMI NAOKI·Filed 2008·Granted May 8, 2012·3 cites·12 claims
- 1769US8129779B2Trench gate type VDMOSFET device with thicker gate insulation layer portion for reducing gate to source capacitanceIZUMI NAOKI·Filed 2008·Granted Mar 6, 2012·2 cites·11 claims
- 1868US8476702B2Semiconductor deviceIZUMI NAOKI·Filed 2008·Granted Jul 2, 2013·3 cites·4 claims
- 1968US8247866B2Semiconductor deviceIZUMI NAOKI·Filed 2011·Granted Aug 21, 2012·2 cites·19 claims
- 2068US6737736B2Semiconductor deviceRENESAS TECH CORP·Filed 2001·Granted May 18, 2004·13 cites·7 claims
- 2167US8426912B2Semiconductor device and method of manufacturing semiconductor deviceIZUMI NAOKI·Filed 2008·Granted Apr 23, 2013·3 cites·13 claims
- 2267US6965154B2Semiconductor deviceRENESAS TECH CORP·Filed 2004·Granted Nov 15, 2005·12 cites·8 claims
- 2366US10446678B2Semiconductor device and method of manufacturing semiconductor deviceROHM CO LTD·Filed 2019·Granted Oct 15, 2019·0 cites·6 claims
- 2466US6995468B2Semiconductor apparatus utilizing a preparatory stage for a chip assemblyRENESAS TECH CORP·Filed 2004·Granted Feb 7, 2006·11 cites·2 claims
- 2565US9644950B2Shape measuring apparatus and point sensor positioning unitMITUTOYO CORP·Filed 2015·Granted May 9, 2017·1 cites·8 claims
- 2664US10211334B2Semiconductor device and method of manufacturing semiconductor deviceROHM CO LTD·Filed 2018·Granted Feb 19, 2019·0 cites·4 claims
- 2763US8829679B2Semiconductor device and method for manufacturing the sameCHIBAHARA HIROYUKI·Filed 2012·Granted Sep 9, 2014·1 cites·7 claims
- 2863US2025107138A1Semiconductor device and method for manufacturing semiconductor deviceROHM CO LTD·Filed 2024·Application pending·0 cites
- 2962US9441715B2Moving mechanism and form measuring apparatusMITUTOYO CORP·Filed 2014·Granted Sep 13, 2016·2 cites·6 claims
- 3060US2024290784A1Enhancement mosfet and semiconductor deviceROHM CO LTD·Filed 2024·Application pending·0 cites
- 3159US9978860B2Semiconductor device and method of manufacturing semiconductor deviceROHM CO LTD·Filed 2016·Granted May 22, 2018·0 cites·4 claims
- 3259US7994571B2Semiconductor deviceROHM CO LTD·Filed 2009·Granted Aug 9, 2011·1 cites·12 claims
- 3359US2024400374A1Mems device and method for manufacturing mems deviceROHM CO LTD·Filed 2024·Application pending·0 cites
- 3457US8384152B2Semiconductor device having trench gate VDMOSFET and method of manufacturing the sameROHM CO LTD·Filed 2008·Granted Feb 26, 2013·1 cites·7 claims
- 3557US6784021B2Semiconductor device, method of fabricating the same and semiconductor device fabricating apparatusRENESAS TECH CORP·Filed 2002·Granted Aug 31, 2004·6 cites·4 claims
- 3657US2024097028A1Semiconductor device and method of manufacturing the sameROHM CO LTD·Filed 2023·Application pending·0 cites
- 3757US2024308841A1Mems device and manufacturing method for mems deviceROHM CO LTD·Filed 2024·Application pending·0 cites
- 3857US2024097008A1Semiconductor device and method of manufacturing semiconductor deviceROHM CO LTD·Filed 2023·Application pending·0 cites
- 3956US7028397B2Method of attaching a semiconductor chip to a chip mounting substrateRENESAS TECH CORP·Filed 2002·Granted Apr 18, 2006·7 cites·5 claims
- 4055US8975686B2Semiconductor device including a floating gateROHM CO LTD·Filed 2014·Granted Mar 10, 2015·0 cites·10 claims
- 4155US2023352545A1Semiconductor deviceROHM CO LTD·Filed 2023·Application pending·0 cites
- 4254US9299833B2Lateral double diffused MOSFET deviceIZUMI NAOKI·Filed 2008·Granted Mar 29, 2016·1 cites·20 claims
- 4353US9406794B2Semiconductor device and method of manufacturing semiconductor deviceIZUMI NAOKI·Filed 2012·Granted Aug 2, 2016·0 cites·5 claims
- 4452US9337256B2Semiconductor device and method of manufacturing semiconductor deviceROHM CO LTD·Filed 2013·Granted May 10, 2016·0 cites·4 claims
- 4551US8269312B2Semiconductor device with resistive elementIZUMI NAOKI·Filed 2009·Granted Sep 18, 2012·0 cites·9 claims
- 4649US2013270633A1Semiconductor deviceROHM CO LTD·Filed 2013·Application pending·0 cites
- 4746US6867507B2Lead frameRENESAS TECH CORP·Filed 2002·Granted Mar 15, 2005·2 cites·15 claims
- 4846US2010167468A1Method of manufacturing semiconductor deviceRENESAS TECH CORP·Filed 2009·Application pending·0 cites
- 4945US2010109148A1Semiconductor deviceRENESAS TECH CORP·Filed 2009·Application pending·0 cites
- 5045US2006118875A1Method of manufacturing semiconductor deviceROHM CO LTD·Filed 2006·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 →