Inventor · disambiguated record
Fumiyasu Utsunomiya
Also filed as: UTSUNOMIYA FUMIYASU
73 granted patents·14 pending applications·688 citations·filing 1995–2025
98Inventor score
Top patents by PatentIndex Score
87 records- 0198US7443152B2Boost DC-DC converter and semiconductor device having boost DC-DC converterSEIKO INSTR INC·Filed 2006·Granted Oct 28, 2008·152 cites·14 claims
- 0292US6879502B2Power source inverter circuitSEIKO INSTR INC·Filed 2003·Granted Apr 12, 2005·81 cites·5 claims
- 0391US9923411B2Electronic deviceSII SEMICONDUCTOR CORP·Filed 2016·Granted Mar 20, 2018·9 cites·3 claims
- 0489US9812958B2Voltage regulator with improved overshoot and undershoot voltage compensationSEIKO INSTR INC·Filed 2014·Granted Nov 7, 2017·9 cites·4 claims
- 0589US6798086B2Electronic apparatus having dual-mode load circuitSEIKO INSTR INC·Filed 2003·Granted Sep 28, 2004·55 cites·8 claims
- 0688US7800433B2Power supply switching circuitSEIKO INSTR INC·Filed 2008·Granted Sep 21, 2010·19 cites·4 claims
- 0787US9798346B2Voltage reference circuit with reduced current consumptionSII SEMICONDUCTOR CORP·Filed 2016·Granted Oct 24, 2017·5 cites·1 claims
- 0885US10075068B2Power source deviceSII SEMICONDUCTOR CORP·Filed 2017·Granted Sep 11, 2018·4 cites·4 claims
- 0985US7436239B2Electronic device including charge pump circuitSEIKO INSTR INC·Filed 2006·Granted Oct 14, 2008·20 cites·4 claims
- 1081US6122185AElectronic apparatusSEIKO INSTR R & D CENTER INC·Filed 1998·Granted Sep 19, 2000·82 cites·28 claims
- 1179US8884602B2Reference voltage circuitSEIKO INSTR INC·Filed 2013·Granted Nov 11, 2014·5 cites·2 claims
- 1277US8334844B2Low power consumption electronic mouse deviceUTSUNOMIYA FUMIYASU·Filed 2010·Granted Dec 18, 2012·5 cites·13 claims
- 1375US7948284B2Power-on reset circuitSEIKO INSTR INC·Filed 2010·Granted May 24, 2011·4 cites·7 claims
- 1474US7274577B2Electronic instrument having booster circuitSEIKO INSTR INC·Filed 2005·Granted Sep 25, 2007·11 cites·8 claims
- 1573US12411027B2Power generation sensorRITSUMEIKAN TRUST·Filed 2023·Granted Sep 9, 2025·0 cites·5 claims
- 1673US6407965B1Timepiece having thermoelectric generator unitSEIKO INSTR INC·Filed 1998·Granted Jun 18, 2002·46 cites·18 claims
- 1771US9117365B2Device identification apparatus and remote control systemSEIKO INSTR INC·Filed 2013·Granted Aug 25, 2015·2 cites·5 claims
- 1869US7826297B2Power supply switching circuitSEIKO INSTR INC·Filed 2008·Granted Nov 2, 2010·9 cites·4 claims
- 1969US5977688AElectronic apparatus for being switched using piezoelectric elementSEIKO INSTR R & D CENTER INC·Filed 1997·Granted Nov 2, 1999·27 cites·14 claims
- 2068US8748790B2Proximity sensor using photosensorUTSUNOMIYA FUMIYASU·Filed 2011·Granted Jun 10, 2014·3 cites·14 claims
- 2167US9417645B2Voltage regulatorSEIKO INSTR INC·Filed 2014·Granted Aug 16, 2016·2 cites·8 claims
- 2267US8390282B2Magnetic sensor circuitUTSUNOMIYA FUMIYASU·Filed 2010·Granted Mar 5, 2013·2 cites·4 claims
- 2367US8304706B2Photodetector circuit and electronic deviceUTSUNOMIYA FUMIYASU·Filed 2010·Granted Nov 6, 2012·2 cites·7 claims
- 2467US7405612B2Electronic deviceSEIKO INSTR INC·Filed 2006·Granted Jul 29, 2008·3 cites·2 claims
- 2566US2024241074A1Ribbon-type electrode and ribbon-type sensorABLIC INC·Filed 2024·Application pending·0 cites
- 2665US12245923B2Power generation sensorRITSUMEIKAN TRUST·Filed 2023·Granted Mar 11, 2025·0 cites·3 claims
- 2765US9411345B2Voltage regulatorSEIKO INSTR INC·Filed 2014·Granted Aug 9, 2016·2 cites·6 claims
- 2864US9236747B2Electronic deviceSEIKO INSTR INC·Filed 2013·Granted Jan 12, 2016·2 cites·3 claims
- 2964US5905291AMISFET semiconductor integrated circuit deviceSEIKO INSTR INC·Filed 1995·Granted May 18, 1999·24 cites·9 claims
- 3063US7868622B2Circuit for detecting power supply voltage dropSEIKO INSTR INC·Filed 2008·Granted Jan 11, 2011·2 cites·1 claims
- 3162US12255535B2Electronic device including boost circuitABLIC INC·Filed 2022·Granted Mar 18, 2025·0 cites·8 claims
- 3262US2025110158A1Current detection circuitABLIC INC·Filed 2024·Application pending·0 cites
- 3361US7902895B2Semiconductor device equipped with a pull-down circuitSEIKO INSTR INC·Filed 2009·Granted Mar 8, 2011·1 cites·16 claims
- 3459US12032006B2Battery-less sensor circuitABLIC INC·Filed 2022·Granted Jul 9, 2024·0 cites·7 claims
- 3559US2025258203A1Voltage detectorABLIC INC·Filed 2025·Application pending·0 cites
- 3658US10447155B2Power source deviceABLIC INC·Filed 2018·Granted Oct 15, 2019·0 cites·6 claims
- 3758US8536673B2Light receiving circuitUTSUNOMIYA FUMIYASU·Filed 2011·Granted Sep 17, 2013·2 cites·3 claims
- 3856US6359841B1Timepiece and portable electronic device having thermoelectric generator unitSEIKO INSTR INC·Filed 1998·Granted Mar 19, 2002·22 cites·20 claims
- 3955US11011979B2Booster circuitABLIC INC·Filed 2020·Granted May 18, 2021·0 cites·2 claims
- 4054US2023139575A1Signal processing device and search methodABLIC INC·Filed 2022·Application pending·0 cites
- 4153US11480464B2Optical sensorABLIC INC·Filed 2020·Granted Oct 25, 2022·0 cites·6 claims
- 4252US12401274B2Electronic device including boost circuitABLIC INC·Filed 2022·Granted Aug 26, 2025·0 cites·16 claims
- 4352US11310971B2Plant cultivation system, controller, and plant cultivation methodRITSUMEIKAN TRUST·Filed 2021·Granted Apr 26, 2022·0 cites·9 claims
- 4452US11249504B2Current generation circuitABLIC INC·Filed 2020·Granted Feb 15, 2022·0 cites·8 claims
- 4552US6603223B2Electronic apparatus having dual-mode load circuitSEIKO INSTR INC·Filed 2001·Granted Aug 5, 2003·8 cites·19 claims
- 4651US6327127B1Electronic instrumentSEIKO INSTR INC·Filed 1999·Granted Dec 4, 2001·17 cites·22 claims
- 4751US2023157903A1Sensor, detection system, and detection methodABLIC INC·Filed 2022·Application pending·0 cites
- 4850US10794770B2Signal detection circuit and signal detection methodABLIC INC·Filed 2019·Granted Oct 6, 2020·0 cites·10 claims
- 4950US10756713B2Clock signal boost circuitABLIC INC·Filed 2019·Granted Aug 25, 2020·0 cites·2 claims
- 5050US9063013B2Infrared detectorSEIKO INSTR INC·Filed 2014·Granted Jun 23, 2015·0 cites·1 claims
Showing the top 50 of 87 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →