Inventor · disambiguated record
Katsunori Hayashi
Also filed as: HAYASHI KATSUNORI
28 granted patents·6 pending applications·750 citations·filing 1988–2025
96Inventor score
Top patents by PatentIndex Score
34 records- 0196US6879137B2Power-supply deviceHITACHI LTD·Filed 2004·Granted Apr 12, 2005·114 cites·16 claims
- 0296US5647554AElectric working apparatus supplied with electric power through power supply cordSANYO ELECTRIC CO·Filed 1994·Granted Jul 15, 1997·181 cites·6 claims
- 0391US11661886B2Variable capacity turbochargerIHI CORP·Filed 2021·Granted May 30, 2023·2 cites·12 claims
- 0491US11572823B2Variable capacity turbochargerIHI CORP·Filed 2021·Granted Feb 7, 2023·2 cites·20 claims
- 0591US5768117APower supply system for supplying electric power to a load through plural convertersHITACHI LTD·Filed 1994·Granted Jun 16, 1998·167 cites·19 claims
- 0689US6798180B2Power-supply deviceHITACHI LTD·Filed 2003·Granted Sep 28, 2004·48 cites·16 claims
- 0788US12372024B2TurbochargerIHI CORP·Filed 2022·Granted Jul 29, 2025·1 cites·19 claims
- 0887US6381152B1Method of driving semiconductor switching device in non-saturated state and power supply apparatus containing such a switching deviceHITACHI LTD·Filed 2000·Granted Apr 30, 2002·32 cites·17 claims
- 0983US6507507B2DC power supply deviceHITACHI LTD·Filed 2001·Granted Jan 14, 2003·41 cites·11 claims
- 1083US2025334069A1TurbochargerIHI CORP·Filed 2025·Application pending·0 cites
- 1179US6643152B2DC power supply deviceHITACHI LTD·Filed 2002·Granted Nov 4, 2003·26 cites·9 claims
- 1277US7548502B2Power backup method for disk storage deviceHITACHI LTD·Filed 2006·Granted Jun 16, 2009·7 cites·22 claims
- 1376US7667918B2Disk array deviceHITACHI LTD·Filed 2005·Granted Feb 23, 2010·3 cites·8 claims
- 1476US6496395B2Direct-current power-supply apparatus, control circuit thereof and semiconductor integrated circuit device for power supplyHITACHI LTD·Filed 2001·Granted Dec 17, 2002·28 cites·16 claims
- 1572US7254742B2Disk array device and battery output control method for disk array deviceHITACHI LTD·Filed 2004·Granted Aug 7, 2007·17 cites·20 claims
- 1671US11913373B2Variable capacity turbochargerIHI CORP·Filed 2022·Granted Feb 27, 2024·0 cites·20 claims
- 1770US7170273B2Power-supply device and hard disk drive using sameHITACHI LTD·Filed 2004·Granted Jan 30, 2007·22 cites·17 claims
- 1863US12276226B2Electric turbochargerIHI CORP·Filed 2023·Granted Apr 15, 2025·0 cites·18 claims
- 1962US11939887B2Turbocharger with nozzle ringIHI CORP·Filed 2022·Granted Mar 26, 2024·0 cites·20 claims
- 2061US5638264AParallelized power supply system providing uninterrupted operationHITACHI LTD·Filed 1995·Granted Jun 10, 1997·40 cites·18 claims
- 2159US11846295B2TurbochargerIHI CORP·Filed 2022·Granted Dec 19, 2023·0 cites·3 claims
- 2259US8656036B2Distribution method and distribution systemMARUYAMA JOJI·Filed 2012·Granted Feb 18, 2014·2 cites·8 claims
- 2358US10301734B2Non-cyanide based Au—Sn alloy plating solutionHAYASHI KATSUNORI·Filed 2017·Granted May 28, 2019·0 cites·12 claims
- 2458US6767392B2Displacement gold plating solutionELECTROPLATING ENG·Filed 2002·Granted Jul 27, 2004·7 cites·9 claims
- 2557US2023327516A1Motor rotor and turbochargerIHI CORP·Filed 2023·Application pending·0 cites
- 2656US11840942B2Variable capacity turbochargerIHI CORP·Filed 2022·Granted Dec 12, 2023·0 cites·20 claims
- 2752US7038984B2Power backup method for disk array storage apparatusHITACHI LTD·Filed 2004·Granted May 2, 2006·2 cites·20 claims
- 2851US11162381B2TurbochargerIHI CORP·Filed 2020·Granted Nov 2, 2021·0 cites·20 claims
- 2951US2015299520A1Adhesive sheet for image display device, method for manufacturing image display device, and image display deviceHITACHI CHEMICAL CO LTD·Filed 2013·Application pending·0 cites
- 3045US9354861B2Wireless communication terminal, software update system, and software update methodFUJITSU LTD·Filed 2014·Granted May 31, 2016·0 cites·19 claims
- 3144US2008318075A1Photocurable Resin CompositionHITACHI CHEMICAL CO LTD·Filed 2005·Application pending·0 cites
- 3240US2005127886A1Power-supply deviceFiled 2005·Application pending·0 cites
- 3336US4887449AMethod for forming a piston having a pegAKEBONO BRAKE IND·Filed 1988·Granted Dec 19, 1989·8 cites·7 claims
- 3433US2020232337A1Seal structure for turbochargerIHI CORP·Filed 2020·Application pending·0 cites
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