Inventor · disambiguated record
Tatsuo Furukawa
Also filed as: FURUKAWA TATSUO
64 granted patents·2 pending applications·1,152 citations·filing 1990–2013
99Inventor score
Top patents by PatentIndex Score
66 records- 0197US5731828AInk jet head, ink jet head cartridge and ink jet apparatusCANON KK·Filed 1995·Granted Mar 24, 1998·121 cites·16 claims
- 0296US7575292B2Printhead having digital circuit and analog circuit, and printing apparatus using the sameCANON KK·Filed 2006·Granted Aug 18, 2009·22 cites·14 claims
- 0395US6116714APrinting head, printing method and apparatus using same, and apparatus and method for correcting said printing headCANON KK·Filed 1995·Granted Sep 12, 2000·99 cites·41 claims
- 0493US6302504B1Recording head and recording apparatus using the sameCANON KK·Filed 1997·Granted Oct 16, 2001·89 cites·71 claims
- 0592US7559626B2Inkjet recording head substrate and drive control method, inkjet recording head, inkjet recording head cartridge and inkjet recording apparatusCANON KK·Filed 2005·Granted Jul 14, 2009·13 cites·13 claims
- 0690US8508565B2Device and apparatus for controlling sameCANON KK·Filed 2013·Granted Aug 13, 2013·4 cites·10 claims
- 0790US8400484B2Device and apparatus for controlling sameFURUKAWA TATSUO·Filed 2010·Granted Mar 19, 2013·6 cites·6 claims
- 0890US6474782B1Printhead and printing apparatus using the sameCANON KK·Filed 2000·Granted Nov 5, 2002·37 cites·9 claims
- 0988US7815272B2Element body for recording head and recording head having element bodyCANON KK·Filed 2006·Granted Oct 19, 2010·9 cites·18 claims
- 1088US7364272B2Printing head, head cartridge having printing head, printing apparatus using printing head, and printing head substrateCANON KK·Filed 2005·Granted Apr 29, 2008·8 cites·2 claims
- 1188US6824237B2Printhead, head cartridge having said printhead, printing apparatus using said printhead and printhead element substrateCANON KK·Filed 2002·Granted Nov 30, 2004·31 cites·17 claims
- 1288US6243109B1Print head with driving, transmission and control devices on single substrateCANON KK·Filed 1997·Granted Jun 5, 2001·54 cites·99 claims
- 1388US6243111B1Print head substrate, print head using the same, and printing apparatusCANON KK·Filed 1998·Granted Jun 5, 2001·60 cites·36 claims
- 1486US5880762AInk jet head with preliminary heater elementCANON KK·Filed 1997·Granted Mar 9, 1999·41 cites·5 claims
- 1584US6742874B2Printhead substrate inputting a data signal and a clock signal, printhead, printhead cartridge, and printer thereofCANON KK·Filed 2002·Granted Jun 1, 2004·24 cites·20 claims
- 1684US6471339B1Substrate for thermal recording head, ink jet recording head using the substrate, recording apparatus with the recording head, and method of driving recording headCANON KK·Filed 2000·Granted Oct 29, 2002·21 cites·40 claims
- 1784US5642070ASignal processing circuit and system for detection of absolute valueCANON KK·Filed 1994·Granted Jun 24, 1997·50 cites·6 claims
- 1883US5602576AInk-jet type recording head and monolithic integrated circuit suitable therforCANON KK·Filed 1996·Granted Feb 11, 1997·50 cites·4 claims
- 1982US9096058B2Device and apparatus for controlling sameCANON KK·Filed 2013·Granted Aug 4, 2015·2 cites·11 claims
- 2082US8342620B2Driving device, recording head, and apparatus using the sameCANON KK·Filed 2010·Granted Jan 1, 2013·3 cites·6 claims
- 2182US6755580B2Ink-jet printing headCANON KK·Filed 2002·Granted Jun 29, 2004·17 cites·56 claims
- 2282US6712437B2Printhead board, printhead and printing apparatusCANON KK·Filed 2002·Granted Mar 30, 2004·22 cites·21 claims
- 2379US8864276B2Printhead and printing apparatus utilizing data signal transfer error detectionYAMATO HIDENORI·Filed 2010·Granted Oct 21, 2014·4 cites·18 claims
- 2479US8672452B2Liquid discharge head and circuit boardHAYASAKI KIMIYUKI·Filed 2011·Granted Mar 18, 2014·3 cites·7 claims
- 2579US8632150B2Printhead substrate, printhead and printing apparatusKASAI RYO·Filed 2010·Granted Jan 21, 2014·3 cites·8 claims
- 2679US7896469B2Head substrate, printhead, head cartridge, and printing apparatusCANON KK·Filed 2007·Granted Mar 1, 2011·5 cites·15 claims
- 2779US5943070ASubstrate for thermal recording head, ink jet recording head using the substrate, recording apparatus with the recording head, and method of driving recording headCANON KK·Filed 1994·Granted Aug 24, 1999·31 cites·14 claims
- 2878US7581805B2Recording head and recording apparatusCANON KK·Filed 2006·Granted Sep 1, 2009·4 cites·3 claims
- 2975US7133153B2Printhead having digital circuit and analog circuit, and printing apparatus using the sameCANON KK·Filed 2001·Granted Nov 7, 2006·13 cites·14 claims
- 3074US7775620B2Substrate for ink jet recording head, driving control method, ink jet recording head, and ink jet recording apparatusCANON KK·Filed 2005·Granted Aug 17, 2010·4 cites·10 claims
- 3173USRE44825EPrint head substrate, print head using the same, and printing apparatusIMANAKA YOSHIYUKI·Filed 2011·Granted Apr 8, 2014·2 cites·64 claims
- 3273US6520611B2Print head and printer apparatus using the sameCANON KK·Filed 2001·Granted Feb 18, 2003·12 cites·8 claims
- 3371US7267429B2Ink-jet printhead substrate, driving control method, ink-jet printhead and ink-jet printing apparatusCANON KK·Filed 2004·Granted Sep 11, 2007·12 cites·17 claims
- 3471US6409300B2Printing head, printing method and apparatus using same, and apparatus and method for correcting said printing headCANON KK·Filed 1999·Granted Jun 25, 2002·21 cites·16 claims
- 3570US8876242B2Liquid ejection headTAMARU YUUJI·Filed 2010·Granted Nov 4, 2014·2 cites·13 claims
- 3670US8226190B2Recording element substrate and recording head having the sameHIRAYAMA NOBUYUKI·Filed 2009·Granted Jul 24, 2012·3 cites·7 claims
- 3769US5661404ACircuit network measurement device and calibration methodHEWLETT PACKARD CO·Filed 1995·Granted Aug 26, 1997·31 cites·2 claims
- 3868US8740350B2Inkjet recording head substrate and drive control method, inkjet recording head, inkjet recording head cartridge and inkjet recording apparatusSAKURAI MASATAKA·Filed 2009·Granted Jun 3, 2014·2 cites·18 claims
- 3968US6971735B2Ink-jet printhead board, ink-jet printhead, and ink-jet printing apparatusCANON KK·Filed 2002·Granted Dec 6, 2005·11 cites·32 claims
- 4068US6640007B1Electronic writing implement and method of electronic writingHITACHI LTD·Filed 1999·Granted Oct 28, 2003·37 cites·46 claims
- 4167US7988260B2Recording element substrate and recording head including recording element substrateCANON KK·Filed 2009·Granted Aug 2, 2011·2 cites·6 claims
- 4266US8371668B2Recoding element substrate, recording head equipped with the same, recording head cartridge, and recording apparatusCANON KK·Filed 2009·Granted Feb 12, 2013·2 cites·9 claims
- 4366US8075103B2Ink jet print head substrate and ink jet print headFURUKAWA TATSUO·Filed 2011·Granted Dec 13, 2011·1 cites·14 claims
- 4466US6439690B2Element substrate having connecting wiring between heat generating resistor elements and ink jet recording apparatusCANON KK·Filed 2001·Granted Aug 27, 2002·8 cites·24 claims
- 4564US5056396AOpening/closing apparatus of keyboard coverKAWAI MUSICAL INSTR MFG CO·Filed 1990·Granted Oct 15, 1991·24 cites·4 claims
- 4663US5591960APhotoelectric converter with signal processingCANON KK·Filed 1995·Granted Jan 7, 1997·29 cites·10 claims
- 4762US6447085B1Driving method of ink-jet recording head, and recording apparatus for performing the driving methodCANON KK·Filed 2000·Granted Sep 10, 2002·9 cites·23 claims
- 4861US6054689APrinting head and printing apparatus using sameCANON KK·Filed 1995·Granted Apr 25, 2000·19 cites·41 claims
- 4960US7806492B2Printhead and printing apparatusCANON KK·Filed 2008·Granted Oct 5, 2010·1 cites·3 claims
- 5057US6257695B1Substrate for thermal recording head, ink jet recording head using the substrate, recording apparatus with the recording head, and method of driving record headCANON KK·Filed 1999·Granted Jul 10, 2001·12 cites·11 claims
Showing the top 50 of 66 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Tatsuo Furukawa files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →