Inventor · disambiguated record
Takeshi Kijima
Also filed as: KIJIMA TAKESHI
112 granted patents·54 pending applications·893 citations·filing 1984–2023
99Inventor score
Top patents by PatentIndex Score
166 records- 0195US7573083B2Transistor type ferroelectric memory and method of manufacturing the sameSEIKO EPSON CORP·Filed 2006·Granted Aug 11, 2009·37 cites·8 claims
- 0294US7482736B2Piezoelectric laminate, surface acoustic wave device, thin-film piezoelectric resonator, and piezoelectric actuatorSEIKO EPSON CORP·Filed 2006·Granted Jan 27, 2009·22 cites·51 claims
- 0393US8395302B2Piezoelectric material and piezoelectric elementHAMADA YASUAKI·Filed 2011·Granted Mar 12, 2013·11 cites·9 claims
- 0493US8102100B2Piezoelectric material and piezoelectric elementHAMADA YASUAKI·Filed 2009·Granted Jan 24, 2012·20 cites·11 claims
- 0592US9653771B2Directional couplerTDK CORP·Filed 2015·Granted May 16, 2017·10 cites·7 claims
- 0691US10084225B2Directional couplerTDK CORP·Filed 2016·Granted Sep 25, 2018·8 cites·11 claims
- 0791US7291960B2Piezoelectric 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
- 0890US7371473B2Ferroelectric 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
- 0990US7287840B2Piezoelectric element, piezoelectric actuator, ink jet recording head, ink jet printer, surface acoustic wave element, frequency filter, oscillator, electronic circuit, thin film piezoelectric resonator and electronic apparatusSEIKO EPSON CORP·Filed 2005·Granted Oct 30, 2007·20 cites·20 claims
- 1089US9893408B2Directional couplerTDK CORP·Filed 2016·Granted Feb 13, 2018·7 cites·7 claims
- 1189US7960901B2Piezoelectric device having a ferroelectric film including a ferroelectric materialSEIKO EPSON CORP·Filed 2010·Granted Jun 14, 2011·6 cites·8 claims
- 1288US7291959B2Piezoelectric element, piezoelectric actuator, ink jet recording head, ink jet printer, surface acoustic wave element, frequency filter, oscillator, electronic circuit, thin film piezoelectric resonator and electronic apparatusSEIKO EPSON CORP·Filed 2005·Granted Nov 6, 2007·17 cites·18 claims
- 1387US9976219B2Electrode, ferroelectric ceramics and manufacturing method thereofYOUTEC CO LTD·Filed 2015·Granted May 22, 2018·2 cites·3 claims
- 1487US7196457B2Piezoelectric film, piezoelectric element, piezoelectric actuator, piezoelectric pump, ink-jet type recording head, ink-jet printer, surface-acoustic-wave element, thin-film piezoelectric resonator, frequency filter, oscillator, electronic circuit, and electronic apparatusSEIKO EPSON CORP·Filed 2004·Granted Mar 27, 2007·29 cites·18 claims
- 1587US6335550B1Fet with ferroelectric gateSHARP KK·Filed 2000·Granted Jan 1, 2002·43 cites·6 claims
- 1686US7524451B2Method of manufacturing an insulating target materialSEIKO EPSON CORP·Filed 2006·Granted Apr 28, 2009·9 cites·5 claims
- 1786US7323257B2Ceramic and method of manufacturing the same, dielectric capacitor, semiconductor device, and elementSEIKO EPSON CORP·Filed 2005·Granted Jan 29, 2008·6 cites·16 claims
- 1885US9171745B2Substrate treatment apparatus and method for manufacturing thin filmSUZUKI MITSUHIRO·Filed 2010·Granted Oct 27, 2015·7 cites·13 claims
- 1984US9831417B2Poling treatment method, magnetic field poling device, and piezoelectric filmKIJIMA TAKESHI·Filed 2011·Granted Nov 28, 2017·5 cites·5 claims
- 2084US7713348B2Precursor composition, method of manufacturing precursor composition, inkjet coating ink, method of manufacturing ferroelectric film, piezoelectric device, semiconductor device, piezoelectric actuator, inkjet recording head, and inkjet printerSEIKO EPSON CORP·Filed 2005·Granted May 11, 2010·9 cites·6 claims
- 2184US7622850B2Piezoelectric 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
- 2283US7265482B2Potassium niobate deposited body and method for manufacturing the same, surface acoustic wave device, frequency filter, oscillator, electronic circuit, and electronic apparatusSEIKO EPSON CORP·Filed 2006·Granted Sep 4, 2007·12 cites·20 claims
- 2382US9893407B2Directional couplerTDK CORP·Filed 2016·Granted Feb 13, 2018·4 cites·6 claims
- 2482US7710004B2Insulating 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
- 2581US7008669B2Ceramic and method of manufacturing the same, dielectric capacitor, semiconductor device, and elementSEIKO EPSON CORP·Filed 2002·Granted Mar 7, 2006·14 cites·25 claims
- 2680US7037731B2Ferroelectric capacitor, method of manufacturing the same, ferroelectric memory, and piezoelectric deviceSEIKO EPSON CORP·Filed 2004·Granted May 2, 2006·23 cites·4 claims
- 2780US5757061AFerroelectric thin film coated substrate, producing method thereof and capacitor structure element using thereofSHARP KK·Filed 1996·Granted May 26, 1998·42 cites·13 claims
- 2879US9431242B2PBNZT ferroelectric film, sol-gel solution, film forming method and method for producing ferroelectric filmKIJIMA TAKESHI·Filed 2010·Granted Aug 30, 2016·3 cites·4 claims
- 2979US5821005AFerroelectrics thin-film coated substrate and manufacture method thereof and nonvolatile memory comprising a ferroelectrics thinfilm coated substrateSHARP KK·Filed 1996·Granted Oct 13, 1998·51 cites·12 claims
- 3078US6376090B1Method for manufacturing a substrate with an oxide ferroelectric thin film formed thereon and a substrate with an oxide ferroelectric thin film formed thereonSHARP KK·Filed 1999·Granted Apr 23, 2002·39 cites·17 claims
- 3178US6307225B1Insulating material, substrate covered with an insulating film, method of producing the same, and thin-film deviceSHARP KK·Filed 2000·Granted Oct 23, 2001·21 cites·10 claims
- 3277US7678241B2Film forming apparatus, substrate for forming oxide thin film and production method thereofSEIKO EPSON CORP·Filed 2005·Granted Mar 16, 2010·2 cites·3 claims
- 3377US7166954B2Piezoelectric film, piezoelectric element, piezoelectric actuator, piezoelectric pump, ink-jet type recording head, ink-jet printer surface-acoustic-wave element, thin-film piezoelectric resonator, frequency filter, oscillator, electronic circuit, and electronic apparatusSEIKO EPSON CORP·Filed 2004·Granted Jan 23, 2007·17 cites·21 claims
- 3476US7255941B2Ferroelectric 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
- 3576US4661760AControl system for engine-driven generatorHONDA MOTOR CO LTD·Filed 1984·Granted Apr 28, 1987·38 cites·17 claims
- 3675US6922351B2Ferroelectric memory device and method of manufacturing the sameSEIKO EPSON CORP·Filed 2003·Granted Jul 26, 2005·18 cites·34 claims
- 3773US9966527B2PBNZT ferroelectric film, sol-gel solution, film forming method and method for producing ferroelectric filmYOUTEC CO LTD·Filed 2016·Granted May 8, 2018·1 cites·21 claims
- 3872US7956519B2Piezoelectric device having a ferroelectric film including a solid solutionSEIKO EPSON CORP·Filed 2010·Granted Jun 7, 2011·1 cites·8 claims
- 3972US7521361B2Method for manufacturing wiring substrateSEIKO EPSON CORP·Filed 2007·Granted Apr 21, 2009·1 cites·15 claims
- 4071US7718487B2Method of manufacturing ferroelectric layer and method of manufacturing electronic instrumentSEIKO EPSON CORP·Filed 2006·Granted May 18, 2010·3 cites·11 claims
- 4171US7205256B2Oxide material, method for preparing oxide thin film and element using said materialJAPAN REPRESENTED BY PRESIDENT·Filed 2001·Granted Apr 17, 2007·19 cites·10 claims
- 4271US6440591B1Ferroelectric thin film coated substrate, producing method thereof and capacitor structure element using thereofSHARP KK·Filed 1996·Granted Aug 27, 2002·32 cites·13 claims
- 4370US7428162B2Memory device including a plurality of capacitorsSEIKO EPSON CORP·Filed 2006·Granted Sep 23, 2008·4 cites·4 claims
- 4469US10115888B2Method for manufacturing crystal filmYOUTEC CO LTD·Filed 2017·Granted Oct 30, 2018·0 cites·8 claims
- 4569US7214977B2Ferroelectric thin film, method of manufacturing the same, ferroelectric memory device and ferroelectric piezoelectric deviceSEIKO EPSON CORP·Filed 2005·Granted May 8, 2007·2 cites·8 claims
- 4669US2015030846A1Crystal film, method for manufacturing crystal film, vapor deposition apparatus and multi-chamber apparatusYOUTEC CO LTD·Filed 2014·Application pending·0 cites
- 4768US7368774B2Capacitor and its manufacturing method, ferroelectric memory device, actuator, and liquid jetting headSEIKO EPSON CORP·Filed 2006·Granted May 6, 2008·3 cites·5 claims
- 4868US7205056B2Ceramic film and method of manufacturing the same, ferroelectric capacitor, semiconductor device, and other elementSEIKO EPSON CORP·Filed 2002·Granted Apr 17, 2007·6 cites·7 claims
- 4968US7187575B2Memory device and its manufacturing methodSEIKO EPSON CORP·Filed 2004·Granted Mar 6, 2007·13 cites·12 claims
- 5068US7077911B2MOCVD apparatus and MOCVD methodYOUTEC CO LTD·Filed 2003·Granted Jul 18, 2006·8 cites·7 claims
Showing the top 50 of 166 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →