Inventor · disambiguated record
Hiroyuki Hagiwara
Also filed as: HAGIWARA HIROYUKI
101 granted patents·17 pending applications·613 citations·filing 1987–2025
99Inventor score
Files withSEIKO EPSON CORP56CANON KK14HAGIWARA HIROYUKI14SAMSUNG ELECTRONICS CO LTD7HITACHI CHEMICAL CO LTD3
Top patents by PatentIndex Score
118 records- 0197US8262198B2Head attachment member, liquid ejection device, and head attachment methodISHII HIROYUKI·Filed 2011·Granted Sep 11, 2012·15 cites·7 claims
- 0296US5731829AInformation processing and recording apparatus with two recording medium conveyance routesCANON KK·Filed 1996·Granted Mar 24, 1998·127 cites·29 claims
- 0394US9333754B2Liquid ejecting apparatus and control method thereofSEIKO EPSON CORP·Filed 2015·Granted May 10, 2016·6 cites·14 claims
- 0492US11331919B2Liquid discharging apparatus and support bodySEIKO EPSON CORP·Filed 2020·Granted May 17, 2022·2 cites·19 claims
- 0592US10464344B2Liquid ejecting head and method for manufacturing liquid ejecting head unitSEIKO EPSON CORP·Filed 2017·Granted Nov 5, 2019·4 cites·15 claims
- 0690US11433671B2Liquid ejecting head unitSEIKO EPSON CORP·Filed 2020·Granted Sep 6, 2022·2 cites·8 claims
- 0790US10076913B2Liquid ejecting apparatus and liquid filling method and control method for the sameSEIKO EPSON CORP·Filed 2017·Granted Sep 18, 2018·3 cites·7 claims
- 0888US5847427ANon-volatile semiconductor memory device utilizing an oxidation suppressing substance to prevent the formation of bird's breaksTOSHIBA KK·Filed 1996·Granted Dec 8, 1998·76 cites·22 claims
- 0986US8434852B2Liquid ejecting head unit and liquid ejecting apparatusHAGIWARA HIROYUKI·Filed 2011·Granted May 7, 2013·4 cites·7 claims
- 1086US6197408B1Electromagnetically shielding bonding film, and shielding assembly and display device using such filmHITACHI CHEMICAL CO LTD·Filed 1999·Granted Mar 6, 2001·55 cites·22 claims
- 1185US11273633B2Liquid discharge apparatusSEIKO EPSON CORP·Filed 2020·Granted Mar 15, 2022·1 cites·18 claims
- 1283US7227482B2Complex band-pass filter for use in digital radio receiver and complex band-pass Δ-Σ AD modulator using the sameSEMICONDUCTOR TECH ACAD RES CT·Filed 2006·Granted Jun 5, 2007·17 cites·20 claims
- 1383US6086979AElectromagnetically shielding bonding film, and shielding assembly and display device using such filmHITACHI CHEMICAL CO LTD·Filed 1997·Granted Jul 11, 2000·47 cites·19 claims
- 1482US7946694B2Liquid ejecting apparatusSEIKO EPSON CORP·Filed 2007·Granted May 24, 2011·6 cites·11 claims
- 1581US8403450B2Liquid ejection head with nozzle plate heaterSATO MASAHIKO·Filed 2011·Granted Mar 26, 2013·3 cites·3 claims
- 1680US9193162B2Liquid ejecting head and liquid ejecting apparatus with a rib which divides the flow of the liquid inside the manifold in twoSEIKO EPSON CORP·Filed 2014·Granted Nov 24, 2015·2 cites·16 claims
- 1777US4767886AMethod for preparing lower olefinsAGENCY IND SCIENCE TECHN·Filed 1987·Granted Aug 30, 1988·16 cites·9 claims
- 1876US8500245B2Liquid ejecting head unit and manufacturing method thereofHAGIWARA HIROYUKI·Filed 2011·Granted Aug 6, 2013·2 cites·6 claims
- 1976US6704272B1Spindle rotation driving device with aligning member and air bearings for rotating information storage disksCANON KK·Filed 2000·Granted Mar 9, 2004·11 cites·7 claims
- 2075US9962957B2Liquid ejecting apparatus and liquid ejecting methodSEIKO EPSON CORP·Filed 2016·Granted May 8, 2018·1 cites·10 claims
- 2175US9411130B2Photographing lens and electronic apparatusSAMSUNG ELECTRONICS CO LTD·Filed 2013·Granted Aug 9, 2016·3 cites·15 claims
- 2275US9174437B2Liquid ejecting apparatusSEIKO EPSON CORP·Filed 2014·Granted Nov 3, 2015·2 cites·6 claims
- 2375US9073334B2Liquid ejecting head module and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2014·Granted Jul 7, 2015·2 cites·10 claims
- 2475US2025296330A1Liquid Ejecting Head And Liquid Ejecting ApparatusSEIKO EPSON CORP·Filed 2025·Application pending·0 cites
- 2574US9250425B2Zoom lens and electronic device including the sameSAMSUNG ELECTRONICS CO LTD·Filed 2013·Granted Feb 2, 2016·3 cites·19 claims
- 2674US6120127ARecording apparatus with ink tank movable relative to recording headCANON KK·Filed 1997·Granted Sep 19, 2000·59 cites·16 claims
- 2773US11312138B2Liquid ejecting unit, liquid ejecting head, support body for liquid ejecting headSEIKO EPSON CORP·Filed 2020·Granted Apr 26, 2022·0 cites·8 claims
- 2873US10843466B2Liquid ejecting unit, liquid ejecting head, support body for liquid ejecting headSEIKO EPSON CORP·Filed 2020·Granted Nov 24, 2020·0 cites·9 claims
- 2973US8191991B2Liquid ejecting head unit and liquid ejecting apparatusHAGIWARA HIROYUKI·Filed 2010·Granted Jun 5, 2012·2 cites·9 claims
- 3072US4985471ARadiation curable pressure sensitive adhesive compositionHITACHI CHEMICAL CO LTD·Filed 1988·Granted Jan 15, 1991·26 cites·8 claims
- 3171US8172379B2Liquid ejecting head unit and method of manufacturing the sameHAGIWARA HIROYUKI·Filed 2009·Granted May 8, 2012·3 cites·5 claims
- 3269US9434167B2Seal member, liquid discharge head having the same, and liquid discharge apparatusSEIKO EPSON CORP·Filed 2015·Granted Sep 6, 2016·1 cites·20 claims
- 3368US7095350B2DA converter circuit provided with DA converter of segment switched capacitor typeSEMICONDUCTOR TECH ACAD RES CT·Filed 2005·Granted Aug 22, 2006·7 cites·8 claims
- 3468US6643907B2Medium fixing method and medium support apparatusCANON KK·Filed 2003·Granted Nov 11, 2003·6 cites·4 claims
- 3567US11318743B2Liquid ejecting head unhand liquid ejecting apparatusSEIKO EPSON CORP·Filed 2019·Granted May 3, 2022·0 cites·13 claims
- 3667US6631047B2Interference device, position detecting device, positioning device and information recording apparatus using the sameCANON KK·Filed 1998·Granted Oct 7, 2003·19 cites·13 claims
- 3767US5930066AInformation recording apparatusCANON KK·Filed 1997·Granted Jul 27, 1999·19 cites·12 claims
- 3866US8807682B2Liquid ejecting apparatus with a head securing member and a linear scale, whose materials are selected for specific thermal expansion characteristicsHAGIWARA HIROYUKI·Filed 2012·Granted Aug 19, 2014·1 cites·20 claims
- 3966US6552867B1Head positioning controller for information recording and/or reproducing apparatus with head tracking of nonsynchronous radial runout (NRRO) of the diskCANON KK·Filed 2000·Granted Apr 22, 2003·6 cites·10 claims
- 4064US10576743B2Liquid ejecting unit, liquid ejecting head, support body for liquid ejecting headSEIKO EPSON CORP·Filed 2017·Granted Mar 3, 2020·0 cites·9 claims
- 4163US11155096B2Liquid ejecting unit and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2020·Granted Oct 26, 2021·0 cites·9 claims
- 4263US8403454B2Liquid ejecting apparatusKITAMURA KENICHI·Filed 2011·Granted Mar 26, 2013·1 cites·3 claims
- 4362US12233653B2Liquid ejecting head and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2022·Granted Feb 25, 2025·0 cites·18 claims
- 4462US11673399B2Liquid ejecting head and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2021·Granted Jun 13, 2023·0 cites·11 claims
- 4561US6249295B1Recording apparatus with self-standing recording unit and sheet supplying apparatusCANON KK·Filed 1994·Granted Jun 19, 2001·17 cites·35 claims
- 4660US11287773B2Grounding structure for endless belt, fixing device, and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2021·Granted Mar 29, 2022·0 cites·20 claims
- 4760US10384448B2Liquid ejecting head unit and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2017·Granted Aug 20, 2019·0 cites·18 claims
- 4860US6557234B1Medium fixing method and medium support apparatusCANON KK·Filed 2000·Granted May 6, 2003·7 cites·4 claims
- 4959US12251942B2Liquid ejecting apparatus and liquid ejecting methodSEIKO EPSON CORP·Filed 2022·Granted Mar 18, 2025·0 cites·14 claims
- 5058US12311662B2Liquid ejecting head and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2022·Granted May 27, 2025·0 cites·20 claims
Showing the top 50 of 118 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →