Inventor · disambiguated record
Ryoji Oohashi
Also filed as: OOHASHI RYOJI
18 granted patents·1 pending application·71 citations·filing 2008–2019
91Inventor score
Top patents by PatentIndex Score
19 records- 0196US8608276B2Liquid discharge head and ink jet recording apparatus including liquid discharge headOOHASHI RYOJI·Filed 2011·Granted Dec 17, 2013·34 cites·9 claims
- 0292US8070263B2Printing head substrate, ink jet printing head and ink jet printing apparatus with substrate temperature detecting elementOOHASHI RYOJI·Filed 2009·Granted Dec 6, 2011·17 cites·6 claims
- 0390US8439485B2Substrate including a detection feature for liquid discharge head and liquid discharge headTAMARU YUJI·Filed 2011·Granted May 14, 2013·8 cites·20 claims
- 0478US10500851B2Print element substrate, printhead, and printing apparatusCANON KK·Filed 2017·Granted Dec 10, 2019·1 cites·16 claims
- 0575US9833992B2Recording-element substrate, recording head, and recording apparatusCANON KK·Filed 2016·Granted Dec 5, 2017·1 cites·12 claims
- 0670US8876242B2Liquid ejection headTAMARU YUUJI·Filed 2010·Granted Nov 4, 2014·2 cites·13 claims
- 0770US8246147B2Inkjet printhead substrate, method for manufacturing inkjet printhead substrate, inkjet print head, and inkjet recording apparatusTAMURA HIDEO·Filed 2009·Granted Aug 21, 2012·3 cites·13 claims
- 0864US8096644B2Liquid ejection head and liquid ejection methodMURAKAMI SHUICHI·Filed 2008·Granted Jan 17, 2012·2 cites·2 claims
- 0958US8066347B2Recording element substrate, recording head, and ink jet recording apparatus having the recording headTAMURA HIDEO·Filed 2009·Granted Nov 29, 2011·1 cites·12 claims
- 1057US8943690B2Method for manufacturing substrate for liquid ejection head and method for manufacturing liquid ejection headISHIDA YUZURU·Filed 2011·Granted Feb 3, 2015·1 cites·10 claims
- 1157US8109593B2Substrate for inkjet head and inkjet head using the sameOOHASHI RYOJI·Filed 2009·Granted Feb 7, 2012·1 cites·9 claims
- 1251US8534796B2Liquid-discharging recording headOMATA KOICHI·Filed 2011·Granted Sep 17, 2013·0 cites·2 claims
- 1351US8083317B2Liquid-discharging recording headOMATA KOICHI·Filed 2009·Granted Dec 27, 2011·0 cites·7 claims
- 1450US11141974B2Print element substrate, liquid discharge head, and liquid discharge apparatusCANON KK·Filed 2019·Granted Oct 12, 2021·0 cites·12 claims
- 1549US9950525B2Element substrate for liquid ejecting head and waferCANON KK·Filed 2016·Granted Apr 24, 2018·0 cites·17 claims
- 1649US8235486B2Recording element substrate, recording head including the same, and recording head cartridgeNEGISHI TOSHIO·Filed 2009·Granted Aug 7, 2012·0 cites·6 claims
- 1748US10889113B2Recording element board, liquid ejection apparatus and method of manufacturing recording element boardCANON KK·Filed 2019·Granted Jan 12, 2021·0 cites·8 claims
- 1844US8235481B2Inkjet recording head and recording apparatusKUBO KOUSUKE·Filed 2009·Granted Aug 7, 2012·0 cites·6 claims
- 1936US2011292127A1Liquid discharge headOOHASHI RYOJI·Filed 2011·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →