Inventor · disambiguated record
Hidenori Akiyama
Also filed as: AKIYAMA HIDENORI
28 granted patents·3 pending applications·157 citations·filing 1983–2020
95Inventor score
Top patents by PatentIndex Score
31 records- 0190US11393901B2Cell layouts for MOS-gated devices for improved forward voltagePAKAL TECH INC·Filed 2020·Granted Jul 19, 2022·2 cites·19 claims
- 0289US9391184B2Insulated gate turn-off device with turn-off transistorPAKAL TECHNOLOGIES LLC·Filed 2015·Granted Jul 12, 2016·6 cites·16 claims
- 0386US6328898B1Method of and apparatus for forming highly oxidative waterKOBE STEEL LTD·Filed 2000·Granted Dec 11, 2001·33 cites·9 claims
- 0480US8742456B2Integrating a trench-gated thyristor with a trench-gated rectifierPAKAL TECHNOLOGIES LLC·Filed 2013·Granted Jun 3, 2014·4 cites·11 claims
- 0579US7705368B2Insulated gate type thyristorFUJIFILM CORP·Filed 2007·Granted Apr 27, 2010·8 cites·11 claims
- 0673US9806152B2Vertical insulated gate turn-off thyristor with intermediate p+ layer in p-basePAKAL TECH LLC·Filed 2017·Granted Oct 31, 2017·2 cites·15 claims
- 0771US8878237B2Active edge structures providing uniform current flow in insulated gate turn-off thyristorsPAKAL TECHNOLOGIES LLC·Filed 2013·Granted Nov 4, 2014·3 cites·19 claims
- 0871US6537860B2Method of fabricating power VLSI diode devicesAPD SEMICONDUCTOR INC·Filed 2000·Granted Mar 25, 2003·19 cites·19 claims
- 0970US8878238B2MCT device with base-width-determined latching and non-latching statesPAKAL TECHNOLOGIES LLC·Filed 2012·Granted Nov 4, 2014·3 cites·20 claims
- 1070US4507266AGlow discharge generating apparatusTOKYO SHIBAURA ELECTRIC CO·Filed 1983·Granted Mar 26, 1985·20 cites·3 claims
- 1167US10256331B2Insulated gate turn-off device having low capacitance and low saturation currentPAKAL TECH LLC·Filed 2018·Granted Apr 9, 2019·1 cites·20 claims
- 1266US9935188B2Insulated gate turn-off device with turn-off Schottky-Barrier MOSFETPAKAL TECH LLC·Filed 2017·Granted Apr 3, 2018·1 cites·13 claims
- 1366US8937502B2Lateral insulated gate turn-off devicesPAKAL TECHNOLOGIES LLC·Filed 2014·Granted Jan 20, 2015·2 cites·20 claims
- 1464US8569117B2Systems and methods integrating trench-gated thyristor with trench-gated rectifierPAKAL TECHNOLOGIES LLC·Filed 2012·Granted Oct 29, 2013·1 cites·20 claims
- 1563US9806181B2Insulated gate power device using a MOSFET for turning offPAKAL TECH LLC·Filed 2016·Granted Oct 31, 2017·1 cites·18 claims
- 1663US6253349B1Error detective information adding equipmentMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Jun 26, 2001·45 cites·9 claims
- 1761US7838791B2Metal coating removing apparatus and metal coating removing methodPANASONIC CORP·Filed 2004·Granted Nov 23, 2010·5 cites·26 claims
- 1859US10036095B2Electrolytic treatment method and electrolytic treatment apparatusTOKYO ELECTRON LTD·Filed 2014·Granted Jul 31, 2018·0 cites·26 claims
- 1956US10797131B2Enhancements to cell layout and fabrication techniques for MOS-gated devicesPAKAL TECH INC·Filed 2019·Granted Oct 6, 2020·0 cites·8 claims
- 2055US9306048B2Dual depth trench-gated mos-controlled thyristor with well-defined turn-on characteristicsPAKAL TECHNOLOGIES LLC·Filed 2013·Granted Apr 5, 2016·1 cites·20 claims
- 2151USRE47072EInsulated gate turn-off device with turn-off transistorPAKAL TECH LLC·Filed 2017·Granted Oct 2, 2018·0 cites·19 claims
- 2251US2019115423A1Insulated gate power devices with reduced carrier injection in termination areaPAKAL TECH LLC·Filed 2018·Application pending·0 cites
- 2349US11235383B2Pulse power generating deviceMAZDA MOTOR·Filed 2018·Granted Feb 1, 2022·0 cites·15 claims
- 2448US10181509B2Insulated gate power devices with reduced carrier injection in termination areaPAKAL TECH LLC·Filed 2016·Granted Jan 15, 2019·0 cites·9 claims
- 2546US11145717B2Cellular insulated gate power device with edge design to prevent failure near edgePAKAL TECH INC·Filed 2019·Granted Oct 12, 2021·0 cites·14 claims
- 2644US10777670B2Vertical insulated gate turn-off thyristor with intermediate p+ layer in p-base formed using epitaxial layerPAKAL TECH INC·Filed 2019·Granted Sep 15, 2020·0 cites·11 claims
- 2741US10224404B2Insulated gate turn-off device with hole injector for faster turn offPAKAL TECH LLC·Filed 2017·Granted Mar 5, 2019·0 cites·11 claims
- 2837US9082648B2Vertical insulated-gate turn-off device having a planar gatePAKAL TECHNOLOGIES LLC·Filed 2014·Granted Jul 14, 2015·0 cites·20 claims
- 2937US2010134776A1High repetition pulse power source and exposure device with high repetition power sourceNAT UNIV CORP KUMAMOTO UNIV·Filed 2008·Application pending·0 cites
- 3035US2012134890A1Ozone generatorKINOSHITA YOHEI·Filed 2010·Application pending·0 cites
- 3130US9394535B2Plasma irradiation device for substance introduction and substance introduction method using plasma irradiation deviceWANG DOUYAN·Filed 2011·Granted Jul 19, 2016·0 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →