Inventor · disambiguated record
Tsutomu Nishiwaki
Also filed as: NISHIWAKI TSUTOMU
55 granted patents·7 pending applications·1,134 citations·filing 1984–2020
99Inventor score
Top patents by PatentIndex Score
62 records- 0198US6378996B1Ink-jet recording head and ink-jet recording apparatusSEIKO EPSON CORP·Filed 2000·Granted Apr 30, 2002·110 cites·27 claims
- 0296US6502930B1Ink jet recording head, method for manufacturing the same, and ink jet recorderSEIKO EPSON CORP·Filed 2000·Granted Jan 7, 2003·71 cites·85 claims
- 0396US5754205AInk jet recording head with pressure chambers arranged along a 112 lattice orientation in a single-crystal silicon substrateSEIKO EPSON CORP·Filed 1996·Granted May 19, 1998·111 cites·22 claims
- 0495US9851266B2Stress-detecting element, sensor module, and electronic apparatusSEIKO EPSON CORP·Filed 2014·Granted Dec 26, 2017·16 cites·13 claims
- 0595US8359931B2Shear force detection device, tactile sensor and grasping apparatusSEIKO EPSON CORP·Filed 2010·Granted Jan 29, 2013·16 cites·3 claims
- 0692US8640550B2Shear force detection device, tactile sensor and grasping apparatusNISHIWAKI TSUTOMU·Filed 2012·Granted Feb 4, 2014·12 cites·11 claims
- 0792US8057018B2Method of manufacturing a liquid jet head and a liquid jet apparatusYAZAKI SHIRO·Filed 2009·Granted Nov 15, 2011·12 cites·5 claims
- 0892US6013970APiezoelectric thin-film device process for manufacturing the same, and ink-jet recording head using the sameSEIKO EPSON CORP·Filed 1997·Granted Jan 11, 2000·66 cites·10 claims
- 0991US6419849B1Method for manufacturing piezoelectric materialSEIKO EPSON CORP·Filed 2000·Granted Jul 16, 2002·37 cites·16 claims
- 1089US6103072APiezoelectric thin-film device, process for manufacturing the same, and ink-jet recording head using the sameSEIKO EPSON CORP·Filed 1998·Granted Aug 15, 2000·57 cites·8 claims
- 1187US6419848B1Piezoelectric actuator, ink-jet type recording head, manufacturing method therefor, and ink-jet printerSEIKO EPSON CORP·Filed 2000·Granted Jul 16, 2002·31 cites·23 claims
- 1287US5922218AMethod of producing ink jet recording headSEIKO EPSON CORP·Filed 1997·Granted Jul 13, 1999·49 cites·7 claims
- 1385US9127999B2Ultrasonic sensor, tactile sensor, grasping apparatus, and electronic deviceTSURUNO JIRO·Filed 2011·Granted Sep 8, 2015·10 cites·23 claims
- 1485US8826748B2Stress-detecting element, sensor module, and electronic apparatusNAKAMURA TOMOAKI·Filed 2012·Granted Sep 9, 2014·8 cites·8 claims
- 1584US7559631B2Liquid-jet head, method for manufacturing the same, and liquid-jet apparatusSEIKO EPSON CORP·Filed 2004·Granted Jul 14, 2009·27 cites·52 claims
- 1682US6193360B1Ink-jet recording headSEIKO EPSON CORP·Filed 1997·Granted Feb 27, 2001·39 cites·4 claims
- 1780US8573069B2Stress sensing device, tactile sensor, and grasping apparatusNISHIWAKI TSUTOMU·Filed 2011·Granted Nov 5, 2013·11 cites·9 claims
- 1880US8536763B2Ultrasonic transducer, ultrasonic sensor, method of manufacturing ultrasonic transducer, and method of manufacturing ultrasonic sensorNAKAMURA TOMOAKI·Filed 2010·Granted Sep 17, 2013·7 cites·6 claims
- 1979US8640551B2Shear force detection device, tactile sensor and grasping apparatusSEIKO EPSON CORP·Filed 2013·Granted Feb 4, 2014·7 cites·4 claims
- 2079US6019458AInk-jet printing head for improving resolution and decreasing crosstalkSEIKO EPSON CORP·Filed 1996·Granted Feb 1, 2000·33 cites·9 claims
- 2178US6639340B1Method for manufacturing piezoelectric element, and piezoelectric element, ink-jet recording head and printerSEIK EPSON CORP·Filed 2000·Granted Oct 28, 2003·25 cites·11 claims
- 2278US6158847ALaminated ink-jet recording head, a process for production thereof and a printer equipped with the recording headSEIKO EPSON CORP·Filed 1996·Granted Dec 12, 2000·29 cites·25 claims
- 2377US6332672B1Ink jet recording head including a cap member sealing piezoelectric vibratorsSEIKO EPSON CORP·Filed 1998·Granted Dec 25, 2001·35 cites·12 claims
- 2477US4684960AThermoelectric printing apparatusSEIKO EPSON CORP·Filed 1985·Granted Aug 4, 1987·23 cites·86 claims
- 2576US9197331B2Ultrasonic transducer device, probe, electronic instrument, and ultrasonic diagnostic deviceSEIKO EPSON CORP·Filed 2013·Granted Nov 24, 2015·6 cites·20 claims
- 2672US6332254B1Process for producing a laminated ink-jet recording headSEIKO EPSON CORP·Filed 1999·Granted Dec 25, 2001·23 cites·11 claims
- 2771US6281617B1Piezoelectric luminous element, display device and method for manufacturing sameSEIKO EPSON CORP·Filed 1999·Granted Aug 28, 2001·23 cites·7 claims
- 2870US9114428B2Piezoelectric element module, ultrasonic transducer, ultrasonic device, liquid ejecting head, liquid ejecting apparatus, and piezoelectric element module manufacturing methodSEIKO EPSON CORP·Filed 2014·Granted Aug 25, 2015·1 cites·10 claims
- 2970US6571446B2Method for manufacturing piezoelectric luminous elementSEIKO EPSON CORP·Filed 2001·Granted Jun 3, 2003·11 cites·7 claims
- 3070US6402304B1Piezoelectric actuator, ink jet printing head, printer, method for manufacturing piezoelectric actuator, and method for manufacturing ink jet printing headSEIKO EPSON CORP·Filed 1999·Granted Jun 11, 2002·27 cites·23 claims
- 3170US6147438APiezoelectric film element and manufacturing method thereof, and ink jet recording headSEIKO EPSON CORP·Filed 1998·Granted Nov 14, 2000·24 cites·13 claims
- 3269US5363131AInk jet recording headSEIKO EPSON CORP·Filed 1991·Granted Nov 8, 1994·27 cites·43 claims
- 3368US9692524B2Ultrasonic transducer device, probe, electronic instrument, and ultrasonic diagnostic deviceSEIKO EPSON CORP·Filed 2015·Granted Jun 27, 2017·1 cites·20 claims
- 3468US7725996B2Method for producing actuator deviceSEIKO EPSON CORP·Filed 2006·Granted Jun 1, 2010·4 cites·2 claims
- 3566US7514854B2Piezoelectric element, liquid-jet head using piezoelectric element and liquid-jet apparatusSEIKO EPSON CORP·Filed 2006·Granted Apr 7, 2009·2 cites·17 claims
- 3666US6051914APiezoelectric device, actuator using the same, and ink-jet recording headSEIKO EPSON CORP·Filed 1998·Granted Apr 18, 2000·20 cites·10 claims
- 3765US6284434B1Piezoelectric thin film element fabrication methodSEIKO EPSON CORP·Filed 1998·Granted Sep 4, 2001·20 cites·9 claims
- 3864US5298328APacking material and method of making sameTOSHIBA CERAMICS CO·Filed 1991·Granted Mar 29, 1994·33 cites·5 claims
- 3963US11123988B2Liquid ejecting head and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2020·Granted Sep 21, 2021·0 cites·18 claims
- 4063US4556891APrinting apparatus and methodSUWA SEIKOSHA KK·Filed 1984·Granted Dec 3, 1985·13 cites·20 claims
- 4161US8991985B2Method of manufacturing a liquid jet head and a liquid jet apparatusSEIKO EPSON CORP·Filed 2013·Granted Mar 31, 2015·0 cites·4 claims
- 4259US10611150B2Liquid discharge head, liquid discharge apparatus, piezoelectric device, and ultrasonic sensorSEIKO EPSON CORP·Filed 2018·Granted Apr 7, 2020·0 cites·20 claims
- 4359US7003857B1Method of producing an ink-jet printing headSEIKO EPSON CORP·Filed 2000·Granted Feb 28, 2006·7 cites·21 claims
- 4456US8613498B2Method of manufacturing a liquid jet head and a liquid jet apparatusYAZAKI SHIRO·Filed 2011·Granted Dec 24, 2013·0 cites·5 claims
- 4555US11104144B2Liquid ejecting head and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2020·Granted Aug 31, 2021·0 cites·20 claims
- 4655US6250753B1Ink-jet recording headSEIKO EPSON CORP·Filed 1999·Granted Jun 26, 2001·12 cites·2 claims
- 4749US10611152B2Liquid ejecting head, liquid ejecting apparatus, and piezoelectric deviceSEIKO EPSON CORP·Filed 2018·Granted Apr 7, 2020·0 cites·8 claims
- 4847US7992972B2Method of manufacturing liquid jet head, method of manufacturing piezoelectric element and liquid jet apparatusSEIKO EPSON CORP·Filed 2009·Granted Aug 9, 2011·0 cites·7 claims
- 4947US6836940B2Process for producing a laminated ink-jet recording headSEIKO EPSON CORP·Filed 2001·Granted Jan 4, 2005·2 cites·11 claims
- 5046US6883902B2Piezoelectric liquid-jet head having a superconductor layerSEIKO EPSON CORP·Filed 2003·Granted Apr 26, 2005·3 cites·9 claims
Showing the top 50 of 62 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →