Inventor · disambiguated record
Kei Nagao
Also filed as: NAGAO KEI
9 granted patents·4 pending applications·15 citations·filing 2006–2025
80Inventor score
Files withROHM CO LTD13
Top patents by PatentIndex Score
13 records- 0187US10622349B2Semiconductor deviceROHM CO LTD·Filed 2017·Granted Apr 14, 2020·4 cites·14 claims
- 0272US11874694B2Semiconductor device and semiconductor device systemROHM CO LTD·Filed 2020·Granted Jan 16, 2024·1 cites·14 claims
- 0372US7659873B2Current control circuit, LED current control apparatus, and light emitting apparatusROHM CO LTD·Filed 2006·Granted Feb 9, 2010·7 cites·10 claims
- 0471US9815401B2Apparatus for driving light emitting deviceROHM CO LTD·Filed 2016·Granted Nov 14, 2017·2 cites·20 claims
- 0568US9949333B2Semiconductor deviceROHM CO LTD·Filed 2017·Granted Apr 17, 2018·1 cites·19 claims
- 0663US12452974B2Light emitting element driving deviceROHM CO LTD·Filed 2023·Granted Oct 21, 2025·0 cites·13 claims
- 0757US12470444B2Semiconductor device and communication systemROHM CO LTD·Filed 2023·Granted Nov 11, 2025·0 cites·10 claims
- 0853US2025307185A1Semiconductor Device and Communication SystemROHM CO LTD·Filed 2025·Application pending·0 cites
- 0951US2024163990A1Semiconductor device and synchronization systemROHM CO LTD·Filed 2023·Application pending·0 cites
- 1049US2024364442A1Semiconductor device and electronic applianceROHM CO LTD·Filed 2024·Application pending·0 cites
- 1143US11395384B2Light emitting device driving apparatus, light emitting device driving system and light emitting systemROHM CO LTD·Filed 2020·Granted Jul 19, 2022·0 cites·13 claims
- 1242US12193129B2Light emitting element driving deviceROHM CO LTD·Filed 2020·Granted Jan 7, 2025·0 cites·15 claims
- 1335US2014354345A1Switch control circuit, switching power supply, and electronic apparatusROHM CO LTD·Filed 2014·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →