Inventor · disambiguated record
Kiyotaka Umemoto
Also filed as: UMEMOTO KIYOTAKA
34 granted patents·4 pending applications·341 citations·filing 2001–2019
97Inventor score
Top patents by PatentIndex Score
38 records- 0187US10276533B2Semiconductor deviceROHM CO LTD·Filed 2018·Granted Apr 30, 2019·3 cites·20 claims
- 0286US9984990B2Semiconductor deviceROHM CO LTD·Filed 2017·Granted May 29, 2018·3 cites·19 claims
- 0384US10483227B2Semiconductor deviceROHM CO LTD·Filed 2019·Granted Nov 19, 2019·2 cites·13 claims
- 0483US7148667B2Power supply apparatusROHM CO LTD·Filed 2004·Granted Dec 12, 2006·32 cites·9 claims
- 0583US7046533B2DC/DC converterROHM CO LTD·Filed 2005·Granted May 16, 2006·16 cites·8 claims
- 0682US10008932B2Synchronous rectification DC/DC converterROHM CO LTD·Filed 2016·Granted Jun 26, 2018·4 cites·8 claims
- 0781US6815939B2Switching power supply unitROHM CO LTD·Filed 2003·Granted Nov 9, 2004·34 cites·17 claims
- 0879US9996097B2Constant voltage generating circuitROHM CO LTD·Filed 2016·Granted Jun 12, 2018·3 cites·9 claims
- 0979US6954055B2Switching device driving apparatus and DC/DC converter incorporating the sameROHM CO LTD·Filed 2003·Granted Oct 11, 2005·20 cites·8 claims
- 1078US11011612B2Semiconductor deviceROHM CO LTD·Filed 2019·Granted May 18, 2021·3 cites·14 claims
- 1177US10355589B2Switching regulatorROHM CO LTD·Filed 2016·Granted Jul 16, 2019·3 cites·30 claims
- 1276US8072201B2Power supply apparatusUMEMOTO KIYOTAKA·Filed 2010·Granted Dec 6, 2011·4 cites·11 claims
- 1375US6369558B2Switching regulatorROHM CO LTD·Filed 2001·Granted Apr 9, 2002·30 cites·7 claims
- 1474US6531853B2DC-DC converterROHM CO LTD·Filed 2001·Granted Mar 11, 2003·28 cites·9 claims
- 1574US6448752B1Switching regulatorROHM CO LTD·Filed 2001·Granted Sep 10, 2002·28 cites·8 claims
- 1673US7486061B2Power supply apparatusROHM CO LTD·Filed 2006·Granted Feb 3, 2009·7 cites·1 claims
- 1773US7202652B2Motor driving apparatus incorporating switch device driving apparatusROHM CO LTD·Filed 2005·Granted Apr 10, 2007·11 cites·4 claims
- 1873US6891736B2Multiphase DC/DC converterROHM CO LTD·Filed 2003·Granted May 10, 2005·22 cites·8 claims
- 1972US8111051B2Step-down switching regulatorSAKAI MASARU·Filed 2006·Granted Feb 7, 2012·10 cites·12 claims
- 2069US9607927B2Semiconductor deviceROHM CO LTD·Filed 2015·Granted Mar 28, 2017·1 cites·19 claims
- 2166US7595620B2Switching regulatorROHM CO LTD·Filed 2005·Granted Sep 29, 2009·8 cites·3 claims
- 2265US10833037B2Semiconductor deviceROHM CO LTD·Filed 2019·Granted Nov 10, 2020·0 cites·20 claims
- 2365US8558529B2Control circuit for synchronous rectification type step-down switching regulatorSAKAI MASARU·Filed 2011·Granted Oct 15, 2013·2 cites·18 claims
- 2465US6922042B2DC/DC converterROHM CO LTD·Filed 2003·Granted Jul 26, 2005·18 cites·7 claims
- 2560US7612545B2DC/DC converterROHM CO LTD·Filed 2004·Granted Nov 3, 2009·14 cites·6 claims
- 2657US7045915B2Power supply unit having multiple power supply outputsROHM CO LTD·Filed 2003·Granted May 16, 2006·11 cites·8 claims
- 2756US6894470B2Power supply device and electric appliance employing the sameROHM CO LTD·Filed 2002·Granted May 17, 2005·9 cites·7 claims
- 2854US10379564B2Constant voltage generating circuitROHM CO LTD·Filed 2018·Granted Aug 13, 2019·0 cites·13 claims
- 2951US6949917B2Switching power supply unitROHM CO LTD·Filed 2004·Granted Sep 27, 2005·7 cites·18 claims
- 3048US10281969B2Semiconductor packageROHM CO LTD·Filed 2017·Granted May 7, 2019·0 cites·10 claims
- 3145US7061735B2Semiconductor deviceROHM CO LTD·Filed 2004·Granted Jun 13, 2006·2 cites·8 claims
- 3245US2014291679A1Semiconductor deviceROHM CO LTD·Filed 2014·Application pending·0 cites
- 3344US7663355B2Power supply apparatusROHM CO LTD·Filed 2008·Granted Feb 16, 2010·0 cites·12 claims
- 3444US6917189B2Electric power supply unit having improved output voltage responseROHM CO LTD·Filed 2003·Granted Jul 12, 2005·4 cites·14 claims
- 3543US2009128219A1Semiconductor device, power supply device, and information processing deviceROHM CO LTD·Filed 2006·Application pending·0 cites
- 3640US7095219B2Electric power supply unit having improved output voltage responseROHM CO LTD·Filed 2004·Granted Aug 22, 2006·2 cites·13 claims
- 3735US2012049821A1Switching regulator control circuit, switching regulator, and electronic instrumentHASHIGUCHI SHINGO·Filed 2011·Application pending·0 cites
- 3835US2016226487A1Semiconductor deviceROHM CO LTD·Filed 2016·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →