Inventor · disambiguated record
Yoshihiro Koizumi
Also filed as: KOIZUMI YOSHIHIRO
66 granted patents·13 pending applications·377 citations·filing 1999–2025
98Inventor score
Top patents by PatentIndex Score
79 records- 0199US6955422B2Ink cartridgeSEIKO EPSON CORP·Filed 2002·Granted Oct 18, 2005·120 cites·62 claims
- 0297US11691427B2Cartridge, printing device, and printing systemSEIKO EPSON CORP·Filed 2021·Granted Jul 4, 2023·4 cites·9 claims
- 0397US11318749B2Ink cartridge, printer, and method for mounting ink cartridgeSEIKO EPSON CORP·Filed 2020·Granted May 3, 2022·4 cites·6 claims
- 0495US6863388B2Ink cartridge and ink jet recording head adaptable for the sameSEIKO EPSON CORP·Filed 2001·Granted Mar 8, 2005·68 cites·12 claims
- 0593US8870349B2AdaptorSEIKO EPSON CORP·Filed 2012·Granted Oct 28, 2014·7 cites·16 claims
- 0692US7237882B2Ink cartridge having retaining structure and recording apparatus for receiving the ink cartridgeSEIKO EPSON CORP·Filed 2005·Granted Jul 3, 2007·9 cites·75 claims
- 0791US9555637B2Cartridge and liquid supplying methodSEIKO EPSON CORP·Filed 2016·Granted Jan 31, 2017·4 cites·7 claims
- 0888US9393793B2Liquid ejecting apparatusSEIKO EPSON CORP·Filed 2015·Granted Jul 19, 2016·3 cites·16 claims
- 0988US7614732B2Ink cartridgeSEIKO EPSON CORP·Filed 2007·Granted Nov 10, 2009·6 cites·9 claims
- 1088US7325915B2Ink cartridge having retaining structureSEIKO EPSON CORP·Filed 2005·Granted Feb 5, 2008·6 cites·24 claims
- 1184US8231209B2Liquid jetting system, liquid container, holder, and liquid jetting apparatus having holderKOIZUMI YOSHIHIRO·Filed 2009·Granted Jul 31, 2012·8 cites·16 claims
- 1284US7934822B2Ink cartridgeSEIKO EPSON CORP·Filed 2009·Granted May 3, 2011·4 cites·4 claims
- 1383US9616671B2CartridgeSEIKO EPSON CORP·Filed 2016·Granted Apr 11, 2017·2 cites·16 claims
- 1482US12447749B2Ink refill containerSEIKO EPSON CORP·Filed 2023·Granted Oct 21, 2025·0 cites·10 claims
- 1581US10414164B2Cartridge, cartridge unit, and liquid ejection systemSEIKO EPSON CORP·Filed 2018·Granted Sep 17, 2019·1 cites·8 claims
- 1680US6598224B1Data management unit, computer system and computer-readable storage mediumTOSHIBA KK·Filed 2000·Granted Jul 22, 2003·37 cites·20 claims
- 1778US12434481B2Attachment and printing systemSEIKO EPSON CORP·Filed 2023·Granted Oct 7, 2025·0 cites·6 claims
- 1878US10308032B2Cartridge for liquid jetting apparatusSEIKO EPSON CORP·Filed 2018·Granted Jun 4, 2019·1 cites·7 claims
- 1976US12502891B2Liquid storage container and liquid storage container setSEIKO EPSON CORP·Filed 2023·Granted Dec 23, 2025·0 cites·11 claims
- 2076USD656186SInk cartridgeOYA SHUN·Filed 2011·Granted Mar 20, 2012·24 cites·1 claims
- 2174US7934794B2Ink cartridgeSEIKO EPSON CORP·Filed 2008·Granted May 3, 2011·2 cites·26 claims
- 2274US2025303723A1Ink replenishment containerSEIKO EPSOON CORP·Filed 2025·Application pending·0 cites
- 2373US9555634B2Printing material receptacle, label, and printing apparatusSEIKO EPSON CORP·Filed 2015·Granted Jan 31, 2017·1 cites·8 claims
- 2471US7997699B2Liquid ejecting apparatusSEIKO EPSON CORP·Filed 2009·Granted Aug 16, 2011·2 cites·6 claims
- 2570US12472748B2Ink replenishment container and printerSEIKO EPSON CORP·Filed 2023·Granted Nov 18, 2025·0 cites·7 claims
- 2670US11807015B2CartridgeSEIKO EPSON CORP·Filed 2022·Granted Nov 7, 2023·0 cites·8 claims
- 2770US8235511B2Liquid ejecting apparatusKOIZUMI YOSHIHIRO·Filed 2011·Granted Aug 7, 2012·1 cites·3 claims
- 2867US9731541B2Label, adhesive label, and printed productTOPPAN PRINTING CO LTD·Filed 2014·Granted Aug 15, 2017·2 cites·16 claims
- 2966USD656185SInk cartridgeOYA SHUN·Filed 2011·Granted Mar 20, 2012·15 cites·1 claims
- 3065US12358297B2PrinterSEIKO EPSON CORP·Filed 2023·Granted Jul 15, 2025·0 cites·10 claims
- 3164US10046569B2Cartridge, cartridge unit and liquid ejection systemSEIKO EPSON CORP·Filed 2017·Granted Aug 14, 2018·0 cites·11 claims
- 3263US11571905B2Ink supply bottleSEIKO EPSON CORP·Filed 2021·Granted Feb 7, 2023·0 cites·7 claims
- 3362US2025276526A1Method for manufacturing ink containerSEIKO EPSON CORP·Filed 2025·Application pending·0 cites
- 3461US12311671B2Cartridge, printing system, and printing apparatusSEIKO EPSON CORP·Filed 2021·Granted May 27, 2025·0 cites·10 claims
- 3561US11878535B2CartridgeSEIKO EPSON CORP·Filed 2022·Granted Jan 23, 2024·0 cites·5 claims
- 3661US9643422B2Cartridge, cartridge unit and liquid ejection systemSEIKO EPSON CORP·Filed 2016·Granted May 9, 2017·0 cites·7 claims
- 3761US8857949B2Liquid ejecting apparatus and maintenance method for a liquid ejecting apparatusSEINO TAKEO·Filed 2010·Granted Oct 14, 2014·1 cites·12 claims
- 3861US7614729B2Liquid jetting deviceSEIKO EPSON CORP·Filed 2004·Granted Nov 10, 2009·6 cites·4 claims
- 3960US2025135787A1Cartridge, printing device, and printing systemSEIKO EPSON CORP·Filed 2024·Application pending·0 cites
- 4060US2025108621A1CartridgeSEIKO EPSON CORP·Filed 2024·Application pending·0 cites
- 4159US12172447B2Ink replenishment containerSEIKO EPSON CORP·Filed 2022·Granted Dec 24, 2024·0 cites·20 claims
- 4259US12103312B2Ink replenishment containerSEIKO EPSON CORP·Filed 2022·Granted Oct 1, 2024·0 cites·10 claims
- 4359US9643419B2AdaptorSEIKO EPSON CORP·Filed 2014·Granted May 9, 2017·0 cites·8 claims
- 4459US2025115051A1Ink cartridge and printing apparatusSEIKO EPSON CORPORAITION·Filed 2024·Application pending·0 cites
- 4558US12319065B2Ink refill containerSEIKO EPSON CORP·Filed 2023·Granted Jun 3, 2025·0 cites·17 claims
- 4658US9221292B2Label, adhesive label, and printed productTOPPAN PRINTING CO LTD·Filed 2014·Granted Dec 29, 2015·0 cites·19 claims
- 4756US11850865B2Cartridge and printing systemSEIKO EPSON CORP·Filed 2022·Granted Dec 26, 2023·0 cites·3 claims
- 4855US12377658B2Cap and cartridge unitSEIKO EPSON CORP·Filed 2023·Granted Aug 5, 2025·0 cites·4 claims
- 4955US12330426B2CartridgeSEIKO EPSON CORP·Filed 2022·Granted Jun 17, 2025·0 cites·9 claims
- 5055US11919315B2CartridgeSEIKO EPSON CORP·Filed 2022·Granted Mar 5, 2024·0 cites·6 claims
Showing the top 50 of 79 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →