Inventor · disambiguated record
Toshiyasu Sakai
Also filed as: SAKAI TOSHIYASU
61 granted patents·3 pending applications·1,578 citations·filing 1978–2022
99Inventor score
Top patents by PatentIndex Score
64 records- 0198US4210802ABar code scannerNIPPON DENSO CO·Filed 1978·Granted Jul 1, 1980·183 cites·5 claims
- 0297US8123330B2Circuit board for ink jet head, ink jet head having the same, method for cleaning the head and ink jet printing apparatus using the headSAKAI TOSHIYASU·Filed 2011·Granted Feb 28, 2012·19 cites·5 claims
- 0397US4818847AApparatus for optically reading printed informationNIPPON DENSO CO·Filed 1983·Granted Apr 4, 1989·326 cites·6 claims
- 0497US4538060AOptical reading apparatus having a reading sensor of electronic scanning typeNIPPON DENSO CO·Filed 1983·Granted Aug 27, 1985·195 cites·14 claims
- 0597US4528444AOptical reading apparatus with automatic gain control circuitNIPPON DENSO CO·Filed 1982·Granted Jul 9, 1985·191 cites·11 claims
- 0696US8491087B2Circuit board for ink jet head, ink jet head having the same, method for cleaning the head and ink jet printing apparatus using the headSAKAI TOSHIYASU·Filed 2012·Granted Jul 23, 2013·15 cites·19 claims
- 0796US7950769B2Circuit board for ink jet head, ink jet head having the same, method for cleaning the head and ink jet printing apparatus using the headCANON KK·Filed 2006·Granted May 31, 2011·21 cites·18 claims
- 0893US7727411B2Manufacturing method of substrate for ink jet head and manufacturing method of ink jet recording headCANON KK·Filed 2007·Granted Jun 1, 2010·16 cites·11 claims
- 0993US7216960B2Method of driving a printhead using a constant current and operating MOS transistor in saturation regionCANON KK·Filed 2004·Granted May 15, 2007·40 cites·1 claims
- 1091US4516017AHigh-sensitive optical reading apparatus and method of reading optical informationNIPPON DENSO CO·Filed 1983·Granted May 7, 1985·101 cites·13 claims
- 1190US7591071B2Manufacturing Method of Semiconductive Element and Ink Jet Head SubstrateCANON KK·Filed 2006·Granted Sep 22, 2009·22 cites·4 claims
- 1290US7374275B2Ink jet head circuit board with heaters and electrodes constructed to reduce corrosion, method of manufacturing the same and ink jet head using the sameCANON KK·Filed 2005·Granted May 20, 2008·10 cites·18 claims
- 1390US4488678AMethod and apparatus for reading a bar codeNIPPON DENSO CO·Filed 1982·Granted Dec 18, 1984·94 cites·11 claims
- 1488US7681993B2Circuit board for ink jet head, method of manufacturing the same, and ink jet head using the sameCANON KK·Filed 2005·Granted Mar 23, 2010·10 cites·3 claims
- 1587US7954238B2Method of manufacturing ink jet circuit board with heaters and electrodes constructed to reduce corrosionCANON KK·Filed 2008·Granted Jun 7, 2011·7 cites·17 claims
- 1686US7857429B2Ink jet recording head and manufacturing method of ink jet recording headCANON KK·Filed 2006·Granted Dec 28, 2010·7 cites·6 claims
- 1786US7566116B2Ink jet head circuit board, method of manufacturing the same and ink jet head using the sameCANON KK·Filed 2005·Granted Jul 28, 2009·8 cites·5 claims
- 1886US4734566AApparatus and method for recognizing optical informationNIPPON DENSO CO·Filed 1986·Granted Mar 29, 1988·84 cites·14 claims
- 1985US7862155B2Ink jet head circuit board, method of manufacturing the same and ink jet head using the sameCANON KK·Filed 2005·Granted Jan 4, 2011·8 cites·5 claims
- 2085US7641316B2Ink jet head circuit board, method of manufacturing the same and ink jet head using the sameCANON KK·Filed 2005·Granted Jan 5, 2010·8 cites·6 claims
- 2185US4408120ABar code scannerNIPPON DENSO CO·Filed 1982·Granted Oct 4, 1983·60 cites·8 claims
- 2282US9586400B2Liquid discharge head, liquid discharge apparatus, and method of manufacturing liquid discharge headCANON KK·Filed 2015·Granted Mar 7, 2017·2 cites·18 claims
- 2382US8647896B2Process for producing a substrate for a liquid ejection headSAKAI TOSHIYASU·Filed 2012·Granted Feb 11, 2014·3 cites·7 claims
- 2480US9139003B2Method for producing liquid-ejection headCANON KK·Filed 2013·Granted Sep 22, 2015·2 cites·7 claims
- 2580US4864112ABar code labelNIPPON DENSO CO·Filed 1987·Granted Sep 5, 1989·55 cites·17 claims
- 2679US7533969B2Ink jet print head substrate, ink jet print head, ink jet printing apparatus, and method of manufacturing ink jet print head substrateCANON KK·Filed 2006·Granted May 19, 2009·4 cites·18 claims
- 2777US9925776B2Method of manufacturing semiconductor chips for liquid discharge headCANON KK·Filed 2017·Granted Mar 27, 2018·1 cites·8 claims
- 2875US8366950B2Liquid-ejection head and method for manufacturing liquid-ejection head substrateCANON KK·Filed 2008·Granted Feb 5, 2013·4 cites·3 claims
- 2975US8057017B2Ink jet recording head with ink supply ports having a cross-section with varying widthSAKAI TOSHIYASU·Filed 2010·Granted Nov 15, 2011·3 cites·3 claims
- 3074US7575294B2Printhead substrate, printhead using the substrate, head cartridge including the printhead, method of driving the printhead, and printing apparatus using the printheadCANON KK·Filed 2007·Granted Aug 18, 2009·3 cites·14 claims
- 3174US7344218B2Printhead driving method, printhead substrate, printhead, head cartridge and printing apparatusCANON KK·Filed 2004·Granted Mar 18, 2008·12 cites·4 claims
- 3274US7338150B2Substrate for liquid discharge head, liquid discharge head using substrate for liquid discharge head and method of manufacturing the sameCANON KK·Filed 2007·Granted Mar 4, 2008·3 cites·7 claims
- 3373US7824560B2Manufacturing method for ink jet recording head chip, and manufacturing method for ink jet recording headCANON KK·Filed 2007·Granted Nov 2, 2010·4 cites·10 claims
- 3471US7306327B2Substrate for ink jet head, ink jet head using the same, and manufacturing method thereofCANON KK·Filed 2003·Granted Dec 11, 2007·12 cites·8 claims
- 3570US7255426B2Substrate for liquid discharge head, liquid discharge head using substrate for liquid discharge head and method of manufacturing the sameCANON KK·Filed 2004·Granted Aug 14, 2007·10 cites·19 claims
- 3668US8002374B2Printhead driving method, printhead substrate, printhead, head cartridge, and printing apparatusCANON KK·Filed 2007·Granted Aug 23, 2011·2 cites·4 claims
- 3767US4412160ADC Motor driving apparatusNIPPON DENSO CO·Filed 1981·Granted Oct 25, 1983·23 cites·2 claims
- 3866US12122162B2Method for manufacturing liquid discharge head and liquid discharge headCANON KK·Filed 2022·Granted Oct 22, 2024·0 cites·11 claims
- 3965US9102153B2Processes for producing substrate for liquid ejection headCANON KK·Filed 2014·Granted Aug 11, 2015·1 cites·13 claims
- 4064US9914295B2Method for manufacturing structureCANON KK·Filed 2016·Granted Mar 13, 2018·1 cites·19 claims
- 4164US8597529B2Method for processing substrate and method for producing liquid ejection head and substrate for liquid ejection headKISHIMOTO KEISUKE·Filed 2009·Granted Dec 3, 2013·2 cites·14 claims
- 4263US8079675B2Ink jet recording head and manufacturing method of ink jet recording headOZAKI TERUO·Filed 2010·Granted Dec 20, 2011·1 cites·4 claims
- 4361US7669981B2Ink jet print head substrate, ink jet print head, ink jet printing apparatus, and method of manufacturing ink jet print head substrateCANON KK·Filed 2009·Granted Mar 2, 2010·1 cites·11 claims
- 4458US9956776B2Method for producing liquid-ejection headCANON KK·Filed 2015·Granted May 1, 2018·0 cites·12 claims
- 4554USRE44945EManufacturing method for ink jet recording head chip, and manfuacturing method for ink jet recording headCANON KK·Filed 2012·Granted Jun 17, 2014·0 cites·10 claims
- 4652US10583656B2Liquid discharge head, recording apparatus, and method of manufacturing liquid discharge headCANON KK·Filed 2018·Granted Mar 10, 2020·0 cites·15 claims
- 4751US9511588B2Method for processing silicon substrateCANON KK·Filed 2014·Granted Dec 6, 2016·0 cites·17 claims
- 4851US8865009B2Processes for producing substrate with piercing aperture, substrate for liquid ejection head and liquid ejection headCANON KK·Filed 2013·Granted Oct 21, 2014·0 cites·17 claims
- 4949US10052870B2Liquid supply substrate, method of producing the same, and liquid ejecting headCANON KK·Filed 2016·Granted Aug 21, 2018·0 cites·17 claims
- 5049US9004650B2Liquid discharge head, cleaning method for liquid discharge head, liquid discharge apparatus, and substrate for liquid discharge headCANON KK·Filed 2014·Granted Apr 14, 2015·0 cites·20 claims
Showing the top 50 of 64 patent records by PatentIndex Score.
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