Inventor · disambiguated record
Hiroshi Isokawa
Also filed as: ISOKAWA HIROSHI
41 granted patents·6 pending applications·109 citations·filing 1997–2024
96Inventor score
Top patents by PatentIndex Score
47 records- 0194US11437069B2Magnetic recording and reproducing deviceTOSHIBA KK·Filed 2021·Granted Sep 6, 2022·5 cites·10 claims
- 0285US11985289B2Image forming apparatus, image reading apparatus,and calibration method for a plurality of imaging sensorsKONICA MINOLTA INC·Filed 2021·Granted May 14, 2024·1 cites·24 claims
- 0384US10659622B2Image forming apparatusKONICA MINOLTA INC·Filed 2019·Granted May 19, 2020·3 cites·12 claims
- 0483US11276421B2Energy-assisted magnetic recording deviceTOSHIBA KK·Filed 2020·Granted Mar 15, 2022·2 cites·13 claims
- 0582US11223747B2Image forming apparatus, image reading apparatus, and calibration method for a plurality of imaging sensorsKONICA MINOLTA INC·Filed 2021·Granted Jan 11, 2022·1 cites·15 claims
- 0678US11646051B2Magnetic disk device and refresh threshold setting methodTOSHIBA KK·Filed 2022·Granted May 9, 2023·1 cites·15 claims
- 0776US12249354B2Magnetic disk device with recording current arrangementTOSHIBA KK·Filed 2024·Granted Mar 11, 2025·0 cites·6 claims
- 0876US8593916B2Thermally-assisted magnetic recording head having heat conducting unit and heat absorbing unit and magnetic recording and reproducing device having the sameIKAI TOSHIYUKI·Filed 2012·Granted Nov 26, 2013·7 cites·14 claims
- 0974US10984820B2Magnetic disk device having multiple writers with writing current of different frequenciesTOSHIBA KK·Filed 2020·Granted Apr 20, 2021·1 cites·18 claims
- 1073US9135538B2Image forming apparatus with measuring section which measures a height position of a sheet surfaceKONICA MINOLTA INC·Filed 2014·Granted Sep 15, 2015·2 cites·3 claims
- 1173US9093085B1Laser controller for heat-assisted magnetic recording deviceTOSHIBA KK·Filed 2014·Granted Jul 28, 2015·2 cites·20 claims
- 1273US7092663B2Image forming apparatus and image forming methodKONICA MINOLTA BUSINESS TECH·Filed 2004·Granted Aug 15, 2006·14 cites·6 claims
- 1372US11984143B2Magnetic disk device with magnetic disk overwrite characteristics arrangementTOSHIBA KK·Filed 2023·Granted May 14, 2024·0 cites·4 claims
- 1471US10490223B2Magnetic disk device and refresh processing methodTOSHIBA KK·Filed 2018·Granted Nov 26, 2019·2 cites·5 claims
- 1571US2024251054A1Image forming apparatus, image reading apparatus, and calibration methodKONICA MINOLTA INC·Filed 2024·Application pending·0 cites
- 1670US7155149B2Image forming apparatus which detects abnormality condition in feeding of tonerKONICA MINOLTA BUSINESS TECH·Filed 2004·Granted Dec 26, 2006·11 cites·19 claims
- 1765US11651782B2Magnetic disk device with magnetic head size arrangementTOSHIBA KK·Filed 2021·Granted May 16, 2023·0 cites·4 claims
- 1865US10650858B2Switching circuit on power supply for magnetic disk recording deviceTOSHIBA KK·Filed 2018·Granted May 12, 2020·1 cites·7 claims
- 1965US9948803B2Reading apparatus that suppresses height of recording medium at a reading position, image forming apparatus and image forming system having the sameKONICA MINOLTA INC·Filed 2016·Granted Apr 17, 2018·1 cites·19 claims
- 2065US6829463B2Toner replenishing method with improved storage and separation unitsKONISHIROKU PHOTO IND·Filed 2003·Granted Dec 7, 2004·9 cites·9 claims
- 2164US6381725B1Disk device and data error correction method thereofFUJITSU LTD·Filed 1999·Granted Apr 30, 2002·16 cites·12 claims
- 2263US7280796B2Image forming apparatusKONICA MINOLTA BUSINESS TECH·Filed 2005·Granted Oct 9, 2007·2 cites·12 claims
- 2361US6163425AMagnetic reproduction apparatus having MR head in which electromigration occurring in MR head is suppressedFUJITSU LTD·Filed 1997·Granted Dec 19, 2000·15 cites·19 claims
- 2459US2025233533A1Electrostatic holding deviceKONICA MINOLTA INC·Filed 2024·Application pending·0 cites
- 2558US7062206B2Toner supplying apparatus and image forming apparatusKONICA MINOLTA BUSINESS TECH·Filed 2004·Granted Jun 13, 2006·6 cites·31 claims
- 2656US10997999B2Information processing apparatus with switching circuit on power supply for disk deviceTOSHIBA KK·Filed 2020·Granted May 4, 2021·0 cites·6 claims
- 2755US2010157461A1Signal reproducing circuit, magnetic storage device, and signal reproducing methodTOSHIBA STORAGE DEVICE CORP·Filed 2009·Application pending·0 cites
- 2854US11354042B2Magnetic disk device and method of setting data formatTOSHIBA KK·Filed 2021·Granted Jun 7, 2022·0 cites·20 claims
- 2952US12002495B2Magnetic disk device and method of adjusting preheat timeTOSHIBA KK·Filed 2023·Granted Jun 4, 2024·0 cites·4 claims
- 3051US10200565B2Image forming system and reading deviceKONICA MINOLTA INC·Filed 2017·Granted Feb 5, 2019·0 cites·13 claims
- 3151US8724435B1Magnetic disk having reflecting layer in recording layer, magnetic disk device, and thermally assisted magnetic recording methodTOSHIBA KK·Filed 2013·Granted May 13, 2014·0 cites·12 claims
- 3249US10142518B2Image reading apparatus and image forming system for performing accurate image correctionKONICA MINOLTA INC·Filed 2016·Granted Nov 27, 2018·0 cites·8 claims
- 3348US8995079B2Magnetic head, magnetic disk drive, and method of controlling magnetic headTOSHIBA KK·Filed 2013·Granted Mar 31, 2015·0 cites·18 claims
- 3447US10803887B2Magnetic disk drive and recording method for magnetic disk driveTOSHIBA KK·Filed 2019·Granted Oct 13, 2020·0 cites·14 claims
- 3547US6301207B1Information storage device and servo gain compensating method in information storage deviceFUJITSU LTD·Filed 1998·Granted Oct 9, 2001·7 cites·18 claims
- 3646US10616436B2Image reading apparatus and image forming system, including opposing partKONICA MINOLTA INC·Filed 2018·Granted Apr 7, 2020·0 cites·12 claims
- 3746US8593913B2Magnetic recording device, controller thereof, and magnetic recording methodYAMADA YUICHI·Filed 2011·Granted Nov 26, 2013·0 cites·20 claims
- 3842US2009297239A1Cleaning apparatus and image forming apparatusKONICA MINOLTA BUSINESS TECH·Filed 2009·Application pending·0 cites
- 3941US9307097B2Image forming apparatusKONICA MINOLTA INC·Filed 2015·Granted Apr 5, 2016·0 cites·8 claims
- 4041US8224230B2Image forming apparatus having a separation section which moves in an axial direction of an image carrier, for separating a transfer sheet from the image carrierISOKAWA HIROSHI·Filed 2009·Granted Jul 17, 2012·0 cites·10 claims
- 4138US9930198B2Image reading apparatus and image forming systemKONICA MINOLTA INC·Filed 2016·Granted Mar 27, 2018·0 cites·18 claims
- 4238US9548071B2Storage apparatus, controller and control methodTOSHIBA KK·Filed 2015·Granted Jan 17, 2017·0 cites·10 claims
- 4338US8670202B2Magnetic head and disk drive with the sameISOKAWA HIROSHI·Filed 2012·Granted Mar 11, 2014·0 cites·11 claims
- 4438US2010302671A1Magnetic recording device, head evaluation device, and write-pole-erasing evaluation methodTOSHIBA STORAGE DEVICE CORP·Filed 2010·Application pending·0 cites
- 4536US7082279B2Toner replenishment device for use in electrophotographic image forming apparatusKONICA MINOLTA BUSINESS TECH·Filed 2004·Granted Jul 25, 2006·0 cites·10 claims
- 4634US7010251B2Toner conveyance device and image forming apparatus equipped therewithKONICA MINOLTA HOLDINGS INC·Filed 2003·Granted Mar 7, 2006·0 cites·23 claims
- 4734US2011091243A1Image Forming ApparatusTOMINO TOSHIAKI·Filed 2010·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →