Inventor · disambiguated record
Koji Ohashi
Also filed as: OHASHI KOJI
72 granted patents·21 pending applications·190 citations·filing 1981–2025
98Inventor score
Files withSEIKO EPSON CORP74OHASHI KOJI6KYOSHIN KOGYO KK3FUJI XEROX CO LTD2SANTEN PHARMACEUTICAL CO LTD2
Top patents by PatentIndex Score
93 records- 0191US7291960B2Piezoelectric device, piezoelectric actuator, piezoelectric pump, inkjet recording head, inkjet printer, surface acoustic wave device, thin-film piezoelectric resonator, frequency filter, oscillator, electronic circuit, and electronic instrumentSEIKO EPSON CORP·Filed 2005·Granted Nov 6, 2007·23 cites·18 claims
- 0290US7371473B2Ferroelectric film, ferroelectric capacitor, ferroelectric memory, piezoelectric element, semiconductor element, method of manufacturing ferroelectric film, and method of manufacturing ferroelectric capacitorSEIKO EPSON CORP·Filed 2005·Granted May 13, 2008·13 cites·9 claims
- 0388US9272515B2Liquid ejecting head, liquid ejecting apparatus, piezoelectric element, ultrasonic transducer, and ultrasonic deviceSEIKO EPSON CORP·Filed 2014·Granted Mar 1, 2016·4 cites·20 claims
- 0486US7560854B2Piezoelectric element and its manufacturing methodSEIKO EPSON CORP·Filed 2008·Granted Jul 14, 2009·13 cites·3 claims
- 0586US7524451B2Method of manufacturing an insulating target materialSEIKO EPSON CORP·Filed 2006·Granted Apr 28, 2009·9 cites·5 claims
- 0684US11152559B2Piezoelectric element, ultrasonic sensor, discharging head, ultrasonic device, liquid discharging device, and method of manufacturing piezoelectric elementSEIKO EPSON CORP·Filed 2018·Granted Oct 19, 2021·2 cites·8 claims
- 0784US7622850B2Piezoelectric device, piezoelectric actuator, piezoelectric pump, inkjet recording head, inkjet printer, surface acoustic wave device, thin-film piezoelectric resonator, frequency filter, oscillator, electronic circuit, and electronic instrumentSEIKO EPSON CORP·Filed 2005·Granted Nov 24, 2009·12 cites·12 claims
- 0883US9772314B2Ultrasonic sensor and measuring method using the same, and method of manufacturing ultrasonic sensorSEIKO EPSON CORP·Filed 2014·Granted Sep 26, 2017·7 cites·16 claims
- 0982US12239025B2Mounting structure, ultrasonic device, ultrasonic probe, ultrasonic apparatus, and electronic apparatusSEIKO EPSON CORP·Filed 2024·Granted Feb 25, 2025·0 cites·4 claims
- 1082US11594670B2MEMs device and electronic deviceSEIKO EPSON CORP·Filed 2020·Granted Feb 28, 2023·1 cites·7 claims
- 1182US7710004B2Insulating target material, method of manufacturing insulating target material, conductive complex oxide film, and deviceSEIKO EPSON CORP·Filed 2009·Granted May 4, 2010·6 cites·8 claims
- 1281US9022530B2Piezoelectric element, liquid ejecting head, and liquid ejecting apparatusOHASHI KOJI·Filed 2012·Granted May 5, 2015·4 cites·3 claims
- 1381US2025353299A1Liquid discharge head, liquid discharge device and piezoelectric elementSEIKO EPSON CORP·Filed 2025·Application pending·0 cites
- 1481US2025133966A1Mounting Structure, Ultrasonic Device, Ultrasonic Probe, Ultrasonic Apparatus, And Electronic ApparatusSEIKO EPSON CORP·Filed 2024·Application pending·0 cites
- 1580US10319897B2Ultrasonic sensor and manufacturing method for the sameSEIKO EPSON CORP·Filed 2016·Granted Jun 11, 2019·2 cites·6 claims
- 1680US7037731B2Ferroelectric capacitor, method of manufacturing the same, ferroelectric memory, and piezoelectric deviceSEIKO EPSON CORP·Filed 2004·Granted May 2, 2006·23 cites·4 claims
- 1779US8672455B2Piezoelectric element, piezoelectric actuator, droplet-ejecting head, droplet-ejecting apparatus, and method for manufacturing piezoelectric elementOHASHI KOJI·Filed 2011·Granted Mar 18, 2014·3 cites·9 claims
- 1878US11917922B2Mounting structure, ultrasonic device, ultrasonic probe, ultrasonic apparatus, and electronic apparatusSEIKO EPSON CORP·Filed 2023·Granted Feb 27, 2024·0 cites·3 claims
- 1978US10161916B2Ultrasonic sensor and measuring method using the same, and method of manufacturing ultrasonic sensorSEIKO EPSON CORP·Filed 2017·Granted Dec 25, 2018·2 cites·8 claims
- 2076US7255941B2Ferroelectric film, ferroelectric capacitor, ferroelectric memory, piezoelectric element, semiconductor element, method of manufacturing ferroelectric film, and method of manufacturing ferroelectric capacitorSEIKO EPSON CORP·Filed 2003·Granted Aug 14, 2007·15 cites·6 claims
- 2174US11378670B2Ultrasonic device and ultrasonic apparatusSEIKO EPSON CORP·Filed 2019·Granted Jul 5, 2022·2 cites·7 claims
- 2273US9062061B2Compound having PARP inhibitory activityHONDA TAKAHIRO·Filed 2012·Granted Jun 23, 2015·4 cites·18 claims
- 2370US12311664B2Piezoelectric element, head chip, liquid ejection device, and sensorSEIKO EPSON CORP·Filed 2023·Granted May 27, 2025·0 cites·7 claims
- 2469US11800809B2Piezoelectric element, piezoelectric actuator, ultrasonic probe, ultrasonic apparatus, electronic apparatus, liquid jet head, and liquid jet apparatusSEIKO EPSON CORP·Filed 2021·Granted Oct 24, 2023·0 cites·5 claims
- 2568US11397254B2Ultrasonic device and ultrasonic sensorSEIKO EPSON CORP·Filed 2019·Granted Jul 26, 2022·1 cites·4 claims
- 2667US7179705B2Ferroelectric capacitor and its manufacturing method, and ferroelectric memory deviceSEIKO EPSON CORP·Filed 2005·Granted Feb 20, 2007·3 cites·8 claims
- 2766US10964877B2Piezoelectric element, piezoelectric actuator, ultrasonic probe, ultrasonic apparatus, electronic apparatus, liquid jet head, and liquid jet apparatusSEIKO EPSON CORP·Filed 2018·Granted Mar 30, 2021·0 cites·16 claims
- 2863US9037030B2Power control system and power control methodFUJI XEROX CO LTD·Filed 2013·Granted May 19, 2015·1 cites·14 claims
- 2963US7187025B2Ferroelectric material, ferroelectric film and method of manufacturing the same, ferroelectric capacitor and method of manufacturing the same, ferroelectric memory, and piezoelectric deviceSEIKO EPSON CORP·Filed 2004·Granted Mar 6, 2007·8 cites·12 claims
- 3061US7707701B2Method for manufacturing a piezoelectric elementSEIKO EPSON CORP·Filed 2006·Granted May 4, 2010·2 cites·7 claims
- 3160US11872592B2Ultrasonic device and ultrasonic apparatusSEIKO EPSON CORP·Filed 2020·Granted Jan 16, 2024·0 cites·8 claims
- 3260US11858000B2Ultrasonic device and ultrasonic sensorSEIKO EPSON CORP·Filed 2021·Granted Jan 2, 2024·0 cites·16 claims
- 3360US2025187335A1Actuator, liquid ejection head, and printerSEIKO EPSON CORP·Filed 2024·Application pending·0 cites
- 3460US2025185516A1Piezoelectric Element, Liquid Ejection Head, And PrinterSEIKO EPSON CORP·Filed 2024·Application pending·0 cites
- 3559US12433167B2Piezoelectric element, droplet dispensing head, actuator, and vibratorSEIKO EPSON CORP·Filed 2023·Granted Sep 30, 2025·0 cites·9 claims
- 3659US11085816B2Ultrasonic wave sensor and ultrasonic wave deviceSEIKO EPSON CORP·Filed 2019·Granted Aug 10, 2021·0 cites·8 claims
- 3759US10203404B2Ultrasonic sensor and manufacturing method for the sameSEIKO EPSON CORP·Filed 2016·Granted Feb 12, 2019·1 cites·19 claims
- 3859US2025144933A1Liquid ejecting apparatusSEIKO EPSON CORP·Filed 2024·Application pending·0 cites
- 3957US11690594B2Piezoelectric actuator, ultrasonic element, ultrasonic probe, ultrasonic device, and electronic deviceSEIKO EPSON CORP·Filed 2021·Granted Jul 4, 2023·0 cites·10 claims
- 4057US11437564B2Ultrasonic device and ultrasonic apparatusSEIKO EPSON CORP·Filed 2020·Granted Sep 6, 2022·0 cites·7 claims
- 4157US8322828B2Liquid ejection head and liquid jet apparatusOHASHI KOJI·Filed 2009·Granted Dec 4, 2012·1 cites·8 claims
- 4256US12054078B2Vehicle seatTOYOTA BOSHOKU KK·Filed 2021·Granted Aug 6, 2024·0 cites·9 claims
- 4356US9085146B2Liquid ejecting head, liquid ejecting apparatus and piezoelectric elementSEIKO EPSON CORP·Filed 2013·Granted Jul 21, 2015·0 cites·8 claims
- 4455US11998390B2Piezoelectric actuator, ultrasound element, ultrasound probe, ultrasound device, and electronic deviceSEIKO EPSON CORP·Filed 2021·Granted Jun 4, 2024·0 cites·10 claims
- 4555US11005026B2Piezoelectric element, piezoelectric actuator, ultrasonic probe, ultrasonic apparatus, electronic apparatus, liquid ejection head, and liquid ejection deviceSEIKO EPSON CORP·Filed 2017·Granted May 11, 2021·0 cites·9 claims
- 4655US10991871B2Piezoelectric element, piezoelectric actuator, ultrasonic probe, ultrasonic device, electronic apparatus, liquid jet head, and liquid jet deviceSEIKO EPSON CORP·Filed 2017·Granted Apr 27, 2021·0 cites·13 claims
- 4755US2023277671A1Prevention and/or treatment of eye disease by collagen fiber crosslinkingSANTEN PHARMACEUTICAL CO LTD·Filed 2021·Application pending·0 cites
- 4855US2024114799A1Piezoelectric Substrate, Piezoelectric Element, And Piezoelectric Element Application DeviceSEIKO EPSON CORP·Filed 2023·Application pending·0 cites
- 4953US2023311506A1Droplet ejection head and printerSEIKO EPSON CORP·Filed 2023·Application pending·0 cites
- 5053US2023301192A1Piezoelectric elementSEIKO EPSON CORP·Filed 2023·Application pending·0 cites
Showing the top 50 of 93 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Koji Ohashi 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 →