Assignee
ROHM CO LTD
JP·5,342 granted patents·1,825 pending applications·53,900 citations·filing 1981–2025
Top patents by PatentIndex Score
7,167 records- 0199US7560915B2Power supply apparatus provided with regulation function and boosting of a regulated voltageROHM CO LTD·Filed 2005·Granted Jul 14, 2009·179 cites·8 claims
- 0299US7466566B2DC-AC converter, controller IC therefor, and electronic apparatus utilizing such DC-AC converterROHM CO LTD·Filed 2005·Granted Dec 16, 2008·175 cites·16 claims
- 0398US11728801B2Switching device and electronic circuitROHM CO LTD·Filed 2022·Granted Aug 15, 2023·4 cites·15 claims
- 0498US11538936B2Semiconductor deviceROHM CO LTD·Filed 2021·Granted Dec 27, 2022·5 cites·15 claims
- 0598US11336275B2Switching device and electronic circuitROHM CO LTD·Filed 2020·Granted May 17, 2022·6 cites·12 claims
- 0698US11296223B2Semiconductor deviceROHM CO LTD·Filed 2021·Granted Apr 5, 2022·5 cites·29 claims
- 0798US10896896B2Semiconductor device comprising PN junction diode and schottky barrier diodeROHM CO LTD·Filed 2020·Granted Jan 19, 2021·4 cites·21 claims
- 0898US9847338B2Semiconductor storage device and method for manufacturing the semiconductor storage deviceROHM CO LTD·Filed 2017·Granted Dec 19, 2017·31 cites·18 claims
- 0998US9559263B2Light-emitting element, light-emitting element unit, and light-emitting element packageROHM CO LTD·Filed 2015·Granted Jan 31, 2017·47 cites·27 claims
- 1098US8044604B2InverterROHM CO LTD·Filed 2009·Granted Oct 25, 2011·990 cites·7 claims
- 1198US8017932B2Light-emitting deviceROHM CO LTD·Filed 2007·Granted Sep 13, 2011·216 cites·9 claims
- 1298US7848066B2Motor drive device and electronic device using the sameROHM CO LTD·Filed 2006·Granted Dec 7, 2010·1k cites·6 claims
- 1398US7688289B2Organic EL driver circuit and organic EL display deviceROHM CO LTD·Filed 2005·Granted Mar 30, 2010·51 cites·12 claims
- 1498US7608810B2Semiconductor device, module, and electronic device including a conversion circuit having a second switch rendered conductive together with a first switchROHM CO LTD·Filed 2006·Granted Oct 27, 2009·158 cites·18 claims
- 1598US7515124B2Organic EL drive circuit and organic EL display device using the same organic EL drive circuitROHM CO LTD·Filed 2005·Granted Apr 7, 2009·186 cites·14 claims
- 1698USD576574SLight emitting diode moduleROHM CO LTD·Filed 2008·Granted Sep 9, 2008·93 cites·1 claims
- 1798US7304871B2Boost circuit capable of step-up ratio controlROHM CO LTD·Filed 2005·Granted Dec 4, 2007·47 cites·5 claims
- 1898US6680959B2Semiconductor light emitting device and semiconductor laserROHM CO LTD·Filed 2001·Granted Jan 20, 2004·315 cites·8 claims
- 1998US6391685B1Method of forming through-holes in a wafer and then dicing to form stacked semiconductor devicesROHM CO LTD·Filed 2000·Granted May 21, 2002·105 cites·6 claims
- 2098US2026052729A1Semiconductor device, and method for manufacturing the sameROHM CO LTD·Filed 2025·Application pending·0 cites
- 2198US2026082662A1Semiconductor deviceROHM CO LTD·Filed 2025·Application pending·0 cites
- 2297US12009213B2Semiconductor power device and method for producing sameROHM CO LTD·Filed 2022·Granted Jun 11, 2024·2 cites·20 claims
- 2397US11894349B2Semiconductor device comprising PN junction diode and Schottky barrier diodeROHM CO LTD·Filed 2022·Granted Feb 6, 2024·2 cites·13 claims
- 2497US11804545B2Semiconductor deviceROHM CO LTD·Filed 2021·Granted Oct 31, 2023·2 cites·16 claims
- 2597US11777030B2Semiconductor deviceROHM CO LTD·Filed 2022·Granted Oct 3, 2023·2 cites·29 claims
- 2697US11735561B2Semiconductor device and method for manufacturing semiconductor deviceROHM CO LTD·Filed 2022·Granted Aug 22, 2023·2 cites·16 claims
- 2797US11469224B2Semiconductor deviceROHM CO LTD·Filed 2021·Granted Oct 11, 2022·3 cites·17 claims
- 2897US11444008B2Semiconductor light emitting device and method for manufacturing the sameROHM CO LTD·Filed 2020·Granted Sep 13, 2022·3 cites·15 claims
- 2997US11417623B2Semiconductor chip and semiconductor device including a copper pillar and an intermediate layerROHM CO LTD·Filed 2020·Granted Aug 16, 2022·5 cites·17 claims
- 3097US11355651B2Semiconductor deviceROHM CO LTD·Filed 2021·Granted Jun 7, 2022·3 cites·20 claims
- 3197US11355609B2Semiconductor deviceROHM CO LTD·Filed 2020·Granted Jun 7, 2022·3 cites·17 claims
- 3297US11289894B2Overcurrent protection circuitROHM CO LTD·Filed 2020·Granted Mar 29, 2022·6 cites·13 claims
- 3397US11081433B2Semiconductor deviceROHM CO LTD·Filed 2020·Granted Aug 3, 2021·4 cites·26 claims
- 3497US10996696B2Power supply circuit, power supply device, and vehicleROHM CO LTD·Filed 2020·Granted May 4, 2021·5 cites·12 claims
- 3597US10658831B2Overcurrent protection circuitROHM CO LTD·Filed 2017·Granted May 19, 2020·11 cites·17 claims
- 3697US10408887B2Method for estimating degradation of rechargeable battery, degradation estimation circuit, electronic apparatus and vehicle including sameROHM CO LTD·Filed 2016·Granted Sep 10, 2019·13 cites·29 claims
- 3797US10256313B2Semiconductor device with surface insulating filmROHM CO LTD·Filed 2018·Granted Apr 9, 2019·10 cites·26 claims
- 3897US10217967B2Organic electroluminescent deviceROHM CO LTD·Filed 2018·Granted Feb 26, 2019·8 cites·28 claims
- 3997US9837521B2Nitride semiconductor device and fabrication method thereforROHM CO LTD·Filed 2013·Granted Dec 5, 2017·29 cites·39 claims
- 4097US9742887B2Mobile telephoneROHM CO LTD·Filed 2016·Granted Aug 22, 2017·26 cites·20 claims
- 4197US9496393B2Semiconductor deviceROHM CO LTD·Filed 2016·Granted Nov 15, 2016·12 cites·11 claims
- 4297US7903298B2Image reading apparatus, and its manufacturing methodROHM CO LTD·Filed 2007·Granted Mar 8, 2011·49 cites·7 claims
- 4397US7701208B2Magnetic sensor circuit and portable terminal provided with such magnetic sensor circuitROHM CO LTD·Filed 2006·Granted Apr 20, 2010·81 cites·18 claims
- 4497US7436063B2Packaging substrate and semiconductor deviceROHM CO LTD·Filed 2005·Granted Oct 14, 2008·70 cites·6 claims
- 4597US6707159B1Semiconductor chip and production process thereforROHM CO LTD·Filed 2000·Granted Mar 16, 2004·168 cites·12 claims
- 4697US6492896B2Chip resistorROHM CO LTD·Filed 2001·Granted Dec 10, 2002·65 cites·2 claims
- 4797US6133637ASemiconductor device having a plurality of semiconductor chipsROHM CO LTD·Filed 1998·Granted Oct 17, 2000·283 cites·24 claims
- 4897US5357134ANonvolatile semiconductor device having charge trap film containing silicon crystal grainsROHM CO LTD·Filed 1994·Granted Oct 18, 1994·172 cites·6 claims
- 4997US2026047172A1Semiconductor device and method for manufacturing the sameROHM CO LTD·Filed 2025·Application pending·0 cites
- 5096US12068741B2Switching device and electronic circuitROHM CO LTD·Filed 2023·Granted Aug 20, 2024·1 cites·7 claims
Showing the top 50 of 7,167 patent records by PatentIndex Score.
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