Inventor · disambiguated record
Fujio Akahane
Also filed as: AKAHANE FUJIO
105 granted patents·13 pending applications·1,460 citations·filing 1990–2020
99Inventor score
Top patents by PatentIndex Score
118 records- 0199US6550902B2Ink-jet printing apparatus and ink cartridge thereforSEIKO EPSON CORP·Filed 2002·Granted Apr 22, 2003·61 cites·47 claims
- 0299US6502917B1Ink-jet printing apparatus and ink cartridge thereforSEIKO EPSON CORP·Filed 2000·Granted Jan 7, 2003·306 cites·38 claims
- 0398US7219985B2Ink-jet printing apparatus and ink cartridge thereforSEIKO EPSON CORP·Filed 2005·Granted May 22, 2007·26 cites·56 claims
- 0497US9346269B2Flow path structure, liquid ejecting head, and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2015·Granted May 24, 2016·8 cites·22 claims
- 0597US8899724B2Liquid-ejecting head and liquid-ejecting apparatusAKAHANE FUJIO·Filed 2012·Granted Dec 2, 2014·15 cites·21 claims
- 0697US8632165B2Liquid-ejecting head and liquid-ejecting apparatusAKAHANE FUJIO·Filed 2012·Granted Jan 21, 2014·13 cites·10 claims
- 0796US9144980B2Liquid ejecting apparatusSEIKO EPSON CORP·Filed 2013·Granted Sep 29, 2015·10 cites·4 claims
- 0896US8596766B2Liquid ejecting apparatusSEIKO EPSON CORP·Filed 2013·Granted Dec 3, 2013·7 cites·8 claims
- 0996US8091981B2Liquid ejecting apparatusAKAHANE FUJIO·Filed 2010·Granted Jan 10, 2012·8 cites·8 claims
- 1096US7789492B2Liquid ejecting apparatusSEIKO EPSON CORP·Filed 2006·Granted Sep 7, 2010·16 cites·8 claims
- 1196US7264334B2Ink-jet printing apparatus and ink cartridge thereforSEIKO EPSON CORP·Filed 2005·Granted Sep 4, 2007·12 cites·37 claims
- 1296US5963234ALaminated ink jet recording head having flow path unit with recess that confronts but does not communicate with common ink chamberSEIKO EPSON CORP·Filed 1996·Granted Oct 5, 1999·140 cites·14 claims
- 1395US9707760B2Flow path structure, liquid ejecting head, and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2016·Granted Jul 18, 2017·4 cites·19 claims
- 1495US9039145B2Liquid ejecting apparatusSEIKO EPSON CORP·Filed 2014·Granted May 26, 2015·5 cites·10 claims
- 1595US8807706B2Liquid ejecting apparatusSEIKO EPSON CORP·Filed 2013·Granted Aug 19, 2014·5 cites·12 claims
- 1695US7578578B2Liquid ejecting apparatusSEIKO EPSON CORP·Filed 2006·Granted Aug 25, 2009·13 cites·3 claims
- 1795US7556362B2Pressure control valve unit and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2005·Granted Jul 7, 2009·20 cites·18 claims
- 1895US6634742B2Recording head unitSEIKO EPSON CORP·Filed 2001·Granted Oct 21, 2003·64 cites·50 claims
- 1995US5113204AInk jet headSEIKO EPSON CORP·Filed 1990·Granted May 12, 1992·134 cites·7 claims
- 2094US8919929B2Liquid-ejecting head and liquid-ejecting apparatusSEIKO EPSON CORP·Filed 2013·Granted Dec 30, 2014·7 cites·15 claims
- 2194US5748214AInk jet recording headSEIKO EPSON CORP·Filed 1995·Granted May 5, 1998·116 cites·14 claims
- 2293US9289993B2Liquid ejecting apparatusSEIKO EPSON CORP·Filed 2015·Granted Mar 22, 2016·3 cites·14 claims
- 2392US10124586B2Flow path structure, liquid ejecting head, and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2017·Granted Nov 13, 2018·2 cites·19 claims
- 2492US9533505B2Liquid ejecting apparatusSEIKO EPSON CORP·Filed 2015·Granted Jan 3, 2017·3 cites·6 claims
- 2591US8342653B2Liquid ejecting apparatusSEIKO EPSON CORP·Filed 2009·Granted Jan 1, 2013·7 cites·11 claims
- 2691US5748210AInk jet type recording unit with an improved carriage structureSEIKO EPSON CORP·Filed 1995·Granted May 5, 1998·69 cites·21 claims
- 2790US7510273B2Ink-jet printing apparatus and ink cartridge thereforSEIKO EPSON CORP·Filed 2006·Granted Mar 31, 2009·3 cites·75 claims
- 2889US10449766B2Manufacturing method of flow path member, flow path member, liquid discharging head, and liquid discharging apparatusSEIKO EPSON CORP·Filed 2017·Granted Oct 22, 2019·3 cites·11 claims
- 2989US8556383B2Liquid ejecting head and liquid ejecting apparatusAKAHANE FUJIO·Filed 2012·Granted Oct 15, 2013·4 cites·6 claims
- 3088US9476507B2Valve, pressure controlling apparatus, liquid ejecting apparatus, and method of opening and closure valveSEIKO EPSON CORP·Filed 2015·Granted Oct 25, 2016·5 cites·18 claims
- 3188US7954934B2Ink-jet printing apparatus and ink cartridge thereforSEIKO EPSON CORP·Filed 2007·Granted Jun 7, 2011·4 cites·13 claims
- 3288US5696541AMechanism and method for adjustment of head position in ink-jet printerSEIKO EPSON CORP·Filed 1995·Granted Dec 9, 1997·66 cites·11 claims
- 3386US10457058B2Liquid supply valve, flow channel system, and method of using liquid supply valveSEIKO EPSON CORP·Filed 2017·Granted Oct 29, 2019·2 cites·6 claims
- 3486US8382245B2Liquid ejecting apparatusSEIKO EPSON CORP·Filed 2011·Granted Feb 26, 2013·2 cites·4 claims
- 3585US9855750B2Liquid ejecting head and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2015·Granted Jan 2, 2018·2 cites·16 claims
- 3684US7246882B2Ink-jet printing apparatus and ink cartridge thereforSEIKO EPSON CORP·Filed 2006·Granted Jul 24, 2007·2 cites·28 claims
- 3783US7219983B2Fine forging method, manufacturing method of liquid ejection head, and liquid ejection headSEIKO EPSON CORP·Filed 2005·Granted May 22, 2007·6 cites·19 claims
- 3881US10449775B2Liquid ejecting head and filter unitSEIKO EPSON CORP·Filed 2018·Granted Oct 22, 2019·1 cites·14 claims
- 3980US7278708B2Ink-jet printing apparatus and ink cartridge thereforSEIKO EPSON CORP·Filed 2002·Granted Oct 9, 2007·4 cites·27 claims
- 4079US10717277B2Flow path structure, liquid ejecting head, and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2019·Granted Jul 21, 2020·0 cites·17 claims
- 4179US8172366B2Liquid jetting headAKAHANE FUJIO·Filed 2008·Granted May 8, 2012·5 cites·5 claims
- 4278US8382235B2Liquid ejecting head, liquid ejecting head unit and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2011·Granted Feb 26, 2013·2 cites·13 claims
- 4378US7575305B2Liquid ejection head having improved ejection performanceSEIKO EPSON CORP·Filed 2007·Granted Aug 18, 2009·4 cites·19 claims
- 4477US11235575B2Flow path structure, liquid ejecting head, and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2020·Granted Feb 1, 2022·0 cites·18 claims
- 4577US8186810B2Liquid ejecting head with heater for heating inkAKAHANE FUJIO·Filed 2009·Granted May 29, 2012·4 cites·4 claims
- 4677US5453770AOn-demand type ink jet print headSEIKO EPSON CORP·Filed 1992·Granted Sep 26, 1995·36 cites·17 claims
- 4776US9283768B2Liquid ejecting apparatusSEIKO EPSON CORP·Filed 2012·Granted Mar 15, 2016·1 cites·12 claims
- 4876US7194886B2Method for forging plate and method for manufacturing a liquid ejection headSEIKO EPSON CORP·Filed 2005·Granted Mar 27, 2007·4 cites·4 claims
- 4976US5699095AInk-jet recording apparatusSEIKO EPSON CORP·Filed 1994·Granted Dec 16, 1997·33 cites·35 claims
- 5075US10549533B2Flow path structure, liquid ejecting head, and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2019·Granted Feb 4, 2020·0 cites·20 claims
Showing the top 50 of 118 patent records by PatentIndex Score.
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