Inventor · disambiguated record
Akira Shimofuku
Also filed as: SHIMOFUKU AKIRA
21 granted patents·6 pending applications·66 citations·filing 2001–2022
93Inventor score
Top patents by PatentIndex Score
27 records- 0190US8727509B2Method of forming electromechanical transducer film, electromechanical transducer film, electromechanical transducer element, and liquid discharge headSHIMOFUKU AKIRA·Filed 2012·Granted May 20, 2014·7 cites·4 claims
- 0288US8425026B2Electromechanical transducer film and method for manufacturing electromechanical transducer filmMACHIDA OSAMU·Filed 2011·Granted Apr 23, 2013·5 cites·11 claims
- 0387US8690297B2Sol-gel liquid, electromechanical conversion element, liquid discharge head and inkjet recorderUEDA KEIJI·Filed 2010·Granted Apr 8, 2014·4 cites·6 claims
- 0484US8911063B2Thin film forming apparatus, thin film forming method, electro-mechanical transducer element, liquid ejecting head, and inkjet recording apparatusWATANABE YASUHIRO·Filed 2013·Granted Dec 16, 2014·6 cites·9 claims
- 0582US9533502B2Electro-mechanical transducer element, liquid droplet ejecting head, image forming apparatus, and electro-mechanical transducer element manufacturing methodMACHIDA OSAMU·Filed 2013·Granted Jan 3, 2017·3 cites·17 claims
- 0681US8960866B2Electromechanical transducer element, liquid discharge head, liquid discharge device, and image forming apparatusMACHIDA OSAMU·Filed 2013·Granted Feb 24, 2015·3 cites·7 claims
- 0780US8646180B2Method for producing electromechanical transducer, electromechanical transducer produced by the method, liquid-droplet jetting head, and liquid-droplet jetting apparatusAKIYAMA YOSHIKAZU·Filed 2010·Granted Feb 11, 2014·7 cites·10 claims
- 0879US7507523B2Optical information recording medium, method of manufacturing the optical information recording medium, and method of and apparatus for recording/reproducing optical informationRICOH KK·Filed 2001·Granted Mar 24, 2009·14 cites·33 claims
- 0977US9202717B2Method of making liquid discharge head, liquid discharge head, liquid discharge apparatus having liquid discharge head, and manufacturing apparatus of liquid discharge headTAKEUCHI ATSUSHI·Filed 2012·Granted Dec 1, 2015·4 cites·8 claims
- 1077US9056454B2Actuator, method of manufacturing the actuator, and liquid droplet ejecting head, liquid droplet ejecting apparatus, and image forming apparatus having the actuatorMACHIDA OSAMU·Filed 2014·Granted Jun 16, 2015·3 cites·6 claims
- 1176US9085145B2Method of forming electromechanical transducer film, electromechanical transducer film, electromechanical transducer element, and liquid discharge headSHIMOFUKU AKIRA·Filed 2014·Granted Jul 21, 2015·2 cites·3 claims
- 1275US9512521B2Manufacturing method of and manufacturing apparatus for metal oxide filmWATANABE AKIRA·Filed 2012·Granted Dec 6, 2016·1 cites·6 claims
- 1374US8770725B2Method of manufacturing electromechanical transducer element, electromechanical transducer element, discharging head, and inkjet recording deviceWATANABE YASUHIRO·Filed 2012·Granted Jul 8, 2014·3 cites·11 claims
- 1472US8713768B2Method of producing piezoelectric actuatorWATANABE YASUHIRO·Filed 2012·Granted May 6, 2014·2 cites·5 claims
- 1571US9537085B2Fabrication method of electromechanical transducer film, fabrication method of electromechanical transducer element, electromechanical transducer element, liquid ejection head, and image forming apparatusRICOH CO LTD·Filed 2015·Granted Jan 3, 2017·1 cites·6 claims
- 1668US9634230B2Fabrication method of electromechanical transducer film, electromechanical transducer element, liquid ejection head, and inkjet recording apparatusSHIMOFUKU AKIRA·Filed 2014·Granted Apr 25, 2017·1 cites·9 claims
- 1763US12076990B2Piezoelectric actuator, liquid discharge head, liquid discharge device, and liquid discharge apparatusSHIMOFUKU AKIRA·Filed 2022·Granted Sep 3, 2024·0 cites·11 claims
- 1863US9969651B2Precursor sol-gel solution, electromechanical transducer element, liquid droplet discharge head, and inkjet recording apparatusTAKEUCHI ATSUSHI·Filed 2017·Granted May 15, 2018·0 cites·5 claims
- 1963US9834853B2PZT precursor solution, method for producing PZT precursor solution, method for producing PZT film, method for producing electromechanical transducer element, and method for producing liquid discharge headAKIYAMA YOSHIKAZU·Filed 2016·Granted Dec 5, 2017·0 cites·10 claims
- 2060US11145803B2Piezoelectric element substrate, bonded substrate, liquid discharge head, liquid discharge unit, and liquid discharge apparatusRICOH CO LTD·Filed 2020·Granted Oct 12, 2021·0 cites·19 claims
- 2153US2014340854A1Electronic device and method of manufacturing the electronic deviceAKIYAMA YOSHIKAZU·Filed 2014·Application pending·0 cites
- 2252US10786988B2Electromechanical transducer element, method of producing the element, liquid discharge head incorporating the element, and liquid discharge apparatus incorporating the headTAKEUCHI ATSUSHI·Filed 2017·Granted Sep 29, 2020·0 cites·20 claims
- 2347US2016221033A1Electronic device and method of manufacturing the electronic deviceAKIYAMA YOSHIKAZU·Filed 2016·Application pending·0 cites
- 2445US2015307403A1Precursor sol-gel solution, electromechanical transducer element, liquid droplet discharge head, and inkjet recording apparatusTAKEUCHI ATSUSHI·Filed 2015·Application pending·0 cites
- 2542US2021086515A1Electromechanical transducer element, liquid discharge head, liquid discharge device, liquid discharge apparatus, and method of making electromechanical transducer elementSHIMOFUKU AKIRA·Filed 2020·Application pending·0 cites
- 2640US2004165523A1Optical recording medium with visible pattern formed in ROM areaFiled 2003·Application pending·0 cites
- 2739US2005105437A1Recording apparatus and recording methodFiled 2003·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Akira Shimofuku 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 →