Inventor · disambiguated record
Ryuji Katsuragi
Also filed as: KATSURAGI RYUJI
28 granted patents·725 citations·filing 1994–2007
97Inventor score
Top patents by PatentIndex Score
28 records- 0198US5976233AWater-based pigment ink, and ink-jet recording method and instruments using the sameCANON KK·Filed 1997·Granted Nov 2, 1999·185 cites·27 claims
- 0298US5451251AInk, and ink-jet recording method and instrument using the sameCANON KK·Filed 1994·Granted Sep 19, 1995·166 cites·44 claims
- 0392US6460987B1Ink set for ink-jet recording, ink-jet recording method, recording unit, ink-jet recording apparatus and bleeding reducing methodCANON KK·Filed 2000·Granted Oct 8, 2002·37 cites·17 claims
- 0487US7926931B2Ink and ink jet recording methodCANON KK·Filed 2007·Granted Apr 19, 2011·7 cites·6 claims
- 0585US6435660B1Ink jet recording head substrate, ink jet recording head, ink jet recording unit, and ink jet recording apparatusCANON KK·Filed 2000·Granted Aug 20, 2002·27 cites·21 claims
- 0684US6827434B1Liquid composition, ink for ink-jet, ink set for ink-jet recording, ink-jet recording method, recording unit, ink cartridge, and ink-jet recording apparatusCANON KK·Filed 2003·Granted Dec 7, 2004·19 cites·22 claims
- 0784US6604809B2Cleaning ink-jet recording head with liquid compositionCANON KK·Filed 2000·Granted Aug 12, 2003·25 cites·16 claims
- 0882US6550903B2Liquid composition, ink set for ink-jet recording, ink-jet recording process, recording unit and ink-jet recording apparatusCANON KK·Filed 2001·Granted Apr 22, 2003·21 cites·35 claims
- 0982US6533406B2Liquid composition, ink set for ink-jet recording, ink-jet recording process, recording unit and ink-jet recording apparatusCANON KK·Filed 2001·Granted Mar 18, 2003·21 cites·39 claims
- 1081US6394594B1Ink, method of reducing kogation on heater of ink-jet recording head, ink-jet recording process, ink-jet recording apparatus, recording unit, and method for lengthening the life of recording headCANON KK·Filed 2000·Granted May 28, 2002·17 cites·52 claims
- 1179US6607266B2Liquid composition, ink for ink-jet, ink set for ink-jet recording, ink-jet recording method, recording unit, ink cartridge, and ink jet recording apparatusCANON KK·Filed 2001·Granted Aug 19, 2003·18 cites·24 claims
- 1279US6540330B1Liquid discharge head, method for producing the same and liquid discharge apparatusCANON KK·Filed 2000·Granted Apr 1, 2003·19 cites·21 claims
- 1378US6682588B2Ink-jet ink, method for alleviating kogation on surface of heater of ink-jet recording head, method for ink-jet recording, ink-jet recording apparatus, recording unit and method for prolonging ink-jet recording head lifeCANON KK·Filed 2001·Granted Jan 27, 2004·14 cites·14 claims
- 1477US6281917B1Image forming process employing liquid composition and ink in combinationCANON KK·Filed 1998·Granted Aug 28, 2001·36 cites·18 claims
- 1574US6514920B1Liquid composition, method of cleaning ink-jet recording head, ink-jet recording apparatus, cartridge, and method of regenerating ink-jet recording headCANON KK·Filed 2000·Granted Feb 4, 2003·12 cites·2 claims
- 1673US8205980B2Liquid composition, ink-jet recording process, ink-jet recording ink set, recording unit, ink cartridge, ink-jet recording apparatus, and ink-jet recording inkNOTOYA YASUHARU·Filed 2007·Granted Jun 26, 2012·3 cites·30 claims
- 1773US6513922B2Ink, ink-jet ink, method for reducing kogation on surface of heater of ink-jet recording head, method for ink-jet recording, ink-jet recording apparatus, recording unit and method for prolonging ink-jet recording head lifeCANON KK·Filed 2001·Granted Feb 4, 2003·9 cites·5 claims
- 1872US6644798B2Method of reducing kogation of heater of ink-jet recording head, ink-jet recording method, ink-jet recording apparatus, recording unit and method for prolonging service life of recording headCANON KK·Filed 2001·Granted Nov 11, 2003·13 cites·10 claims
- 1970US6752487B1Liquid discharging head, method for manufacturing a liquid discharging head, and liquid discharging apparatusCANON KK·Filed 2000·Granted Jun 22, 2004·12 cites·15 claims
- 2069US5728201AInk, and ink-jet recording method and instruments using the sameCANON KK·Filed 1996·Granted Mar 17, 1998·29 cites·37 claims
- 2168US6533398B2Method of reducing kogation on heater of ink-jet recording head, ink-jet recording process, ink-jet recording apparatus, recording unit, and method for lengthening the life of recording headCANON KK·Filed 2000·Granted Mar 18, 2003·8 cites·11 claims
- 2263US6902264B2Ink, ink-jet ink, method for reducing kogation on surface of heater of ink-jet recording head, method for ink-jet recording apparatus, recording unit and method for prolonging ink-jet recording head lifeCANON KK·Filed 2002·Granted Jun 7, 2005·4 cites·19 claims
- 2361US6425659B1Method for alleviating kogation on surface of heater of ink-jet recording head, method for ink-jet recording, ink-jet recording apparatus, recording unit, and method for prolonging ink-jet recording head lifeCANON KK·Filed 2000·Granted Jul 30, 2002·8 cites·36 claims
- 2460US7637581B2Ink jet head substrate having heat generating resistor and ink jet head and recording method using sameCANON KK·Filed 2007·Granted Dec 29, 2009·0 cites·7 claims
- 2558US7189014B2Production process of light amount-adjusting member, light amount-adjusting member, light amount-adjusting device and photographing apparatusCANON KK·Filed 2004·Granted Mar 13, 2007·4 cites·12 claims
- 2656US7070344B2Production process of light amount adjustment member, light amount adjustment device and photographing apparatusCANON KK·Filed 2004·Granted Jul 4, 2006·4 cites·11 claims
- 2753US6471350B2Method of protecting heater surface of ink-jet printer, ink-jet recording apparatus, recording unit and method of prolonging service life of ink-jet recording headCANON KK·Filed 2001·Granted Oct 29, 2002·5 cites·17 claims
- 2845US7219971B1Ink jet head substrate having heat generating resistor and ink jet head and recording method using sameCANON KK·Filed 2000·Granted May 22, 2007·2 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →