Inventor · disambiguated record
Hiroaki Ichikawa
Also filed as: ICHIKAWA HIROAKI
61 granted patents·19 pending applications·2,423 citations·filing 1978–2025
99Inventor score
Files withSONY CORP22FUJI ELECTRIC CO LTD16OLYMPUS MEDICAL SYSTEMS CORP9ICHIKAWA HIROAKI6OLYMPUS CORP4
Top patents by PatentIndex Score
80 records- 0198US10058373B2Treatment instrument and treatment systemOLYMPUS CORP·Filed 2017·Granted Aug 28, 2018·747 cites·25 claims
- 0298US7511695B2Display unit and backlight unitSONY CORP·Filed 2005·Granted Mar 31, 2009·110 cites·11 claims
- 0397US7126294B2Method and device for controlling photovoltaic inverter, and feed water deviceFUJI ELECTRIC HOLDINGS·Filed 2003·Granted Oct 24, 2006·293 cites·11 claims
- 0496US7982706B2Backlight device, method of driving backlight and liquid crystal display apparatusSONY CORP·Filed 2005·Granted Jul 19, 2011·70 cites·8 claims
- 0595US7295180B2Backlight driving device, backlight driving method, and liquid crystal display deviceSONY CORP·Filed 2005·Granted Nov 13, 2007·41 cites·8 claims
- 0694US8105230B2Medical systemHONDA KAZUKI·Filed 2007·Granted Jan 31, 2012·183 cites·13 claims
- 0794US5073523ADielectric ceramic compositionMURATA MANUFACTURING CO·Filed 1990·Granted Dec 17, 1991·84 cites·1 claims
- 0893US7675249B2Apparatus and method for driving backlight unitSONY CORP·Filed 2005·Granted Mar 9, 2010·31 cites·16 claims
- 0991US7582055B2Endoscope systemOLYMPUS MEDICAL SYSTEMS CORP·Filed 2006·Granted Sep 1, 2009·90 cites·20 claims
- 1091US4412237ASemiconductor deviceFUJITSU LTD·Filed 1978·Granted Oct 25, 1983·71 cites·17 claims
- 1190US6424328B1Liquid-crystal display apparatusSONY CORP·Filed 1999·Granted Jul 23, 2002·104 cites·17 claims
- 1289US8174487B2Display unit and backlight unitFURUKAWA NORIMASA·Filed 2009·Granted May 8, 2012·11 cites·9 claims
- 1388US8702700B2Surgical treatment deviceTERUMO CARDIOVASCULAR SYS·Filed 2012·Granted Apr 22, 2014·39 cites·14 claims
- 1488US7507943B2Light source for LCD with individually controlled sectionsSONY CORP·Filed 2007·Granted Mar 24, 2009·10 cites·14 claims
- 1584US8111020B2Apparatus and method for driving backlight unitFURUKAWA NORIMASA·Filed 2010·Granted Feb 7, 2012·4 cites·10 claims
- 1684US5771085ALCD device with an alignment mark having same material as microlensesSONY CORP·Filed 1996·Granted Jun 23, 1998·78 cites·11 claims
- 1783US7918785B2Medical apparatus, treatment instrument for endoscope and endoscope apparatusOLYMPUS MEDICAL SYSTEMS CORP·Filed 2007·Granted Apr 5, 2011·33 cites·17 claims
- 1883US5818413ADisplay apparatusSONY CORP·Filed 1996·Granted Oct 6, 1998·77 cites·10 claims
- 1982US5850276AMethod of making LCD device having alignment mark made of same material and formed at same time as microlensesSONY CORP·Filed 1997·Granted Dec 15, 1998·70 cites·9 claims
- 2081US11688722B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2021·Granted Jun 27, 2023·1 cites·31 claims
- 2181US7564441B2Data processing circuit, display apparatus, and portable terminalSONY CORP·Filed 2005·Granted Jul 21, 2009·4 cites·5 claims
- 2279US8075474B2Endoscope system and medical instrumentHONDA KAZUKI·Filed 2008·Granted Dec 13, 2011·21 cites·9 claims
- 2379US7224200B2Level shift circuit, display apparatus, and portable terminalSONY CORP·Filed 2003·Granted May 29, 2007·15 cites·2 claims
- 2478US11515292B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2020·Granted Nov 29, 2022·1 cites·18 claims
- 2578US8083669B2Medical device for maintaining state of treatment portionMURAKAMI KAZUSHI·Filed 2007·Granted Dec 27, 2011·21 cites·11 claims
- 2677US9967991B2Semiconductor device and busbarFUJI ELECTRIC CO LTD·Filed 2016·Granted May 8, 2018·3 cites·8 claims
- 2776US2024321834A1Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2024·Application pending·0 cites
- 2875US7913352B2Dust collectorMAKITA CORP·Filed 2009·Granted Mar 29, 2011·6 cites·12 claims
- 2974US12033984B2Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2023·Granted Jul 9, 2024·0 cites·20 claims
- 3073US7524284B2Endoscopy systemOLYMPUS MEDICAL SYSTEMS CORP·Filed 2006·Granted Apr 28, 2009·12 cites·7 claims
- 3171USD884662SSemiconductor moduleFUJI ELECTRIC CO LTD·Filed 2018·Granted May 19, 2020·13 cites·1 claims
- 3271US9125663B2Treatment instrument system with thermally deformable absorbent member and slidable holding surfaceOLYMPUS MEDICAL SYSTEMS CORP·Filed 2012·Granted Sep 8, 2015·7 cites·9 claims
- 3370US8529554B2Treatment instrument operation unit and medical system with treatment instrument operation unitMURAKAMI KAZUSHI·Filed 2007·Granted Sep 10, 2013·9 cites·5 claims
- 3470US8325452B2Semiconductor deviceICHIKAWA HIROAKI·Filed 2008·Granted Dec 4, 2012·7 cites·9 claims
- 3568US9027505B2Apparatus and method for coloring electrical wireYANAGAWA NAOKI·Filed 2012·Granted May 12, 2015·2 cites·10 claims
- 3668US2025347626A1Optical sensor measurement module, optical sensor measurement set, and detection deviceMURATA MANUFACTURING CO·Filed 2025·Application pending·0 cites
- 3766US8931149B2Wire coloring apparatus includng a rollerICHIKAWA HIROAKI·Filed 2012·Granted Jan 13, 2015·1 cites·5 claims
- 3866US5448384AActive matrix liquid crystal display device having discharge elements connected between input terminals and common terminalSONY CORP·Filed 1993·Granted Sep 5, 1995·30 cites·7 claims
- 3965US8934277B2Semiconductor system with at least one three-level electric power inverter circuitFUJI ELECTRIC CO LTD·Filed 2014·Granted Jan 13, 2015·2 cites·7 claims
- 4065US7691054B2Endoscope system, treatment instrument cartridge, and storage caseOLYMPUS MEDICAL SYSTEMS CORP·Filed 2006·Granted Apr 6, 2010·4 cites·17 claims
- 4164US5185093AProcess for producing magnetic metal powder and coating for magnetic recording mediumKAO CORP·Filed 1991·Granted Feb 9, 1993·17 cites·14 claims
- 4263US6661019B2Active matrix circuit, method of driving the same, and surface pressure distribution detecting apparatusSONY CORP·Filed 2001·Granted Dec 9, 2003·12 cites·51 claims
- 4362US8075475B2Endoscope system and medical instrumentHONDA KAZUKI·Filed 2008·Granted Dec 13, 2011·2 cites·14 claims
- 4462US6958716B2Data processing circuit, display device, and mobile terminalSONY CORP·Filed 2003·Granted Oct 25, 2005·6 cites·8 claims
- 4561US9737295B2Suture-needle holder and endoscope systemOLYMPUS CORP·Filed 2016·Granted Aug 22, 2017·1 cites·10 claims
- 4661US8986197B2Medical system and endoscope systemOKADA TSUTOMU·Filed 2007·Granted Mar 24, 2015·2 cites·23 claims
- 4761US7652654B2Liquid crystal display and backlight adjusting methodSONY CORP·Filed 2004·Granted Jan 26, 2010·6 cites·8 claims
- 4861US7427973B2Display device and method of driving sameSONY CORP·Filed 2004·Granted Sep 23, 2008·10 cites·15 claims
- 4961US2025070057A1Semiconductor deviceFUJI ELECTRIC CO LTD·Filed 2024·Application pending·0 cites
- 5058US8367154B2Method for coloring electrical wiresYAZAKI CORP·Filed 2006·Granted Feb 5, 2013·2 cites·7 claims
Showing the top 50 of 80 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →