Inventor · disambiguated record
Tsutomu Hashizume
Also filed as: HASHIZUME TSUTOMU
21 granted patents·1 pending application·457 citations·filing 1996–2015
96Inventor score
Files withSEIKO EPSON CORP22
Top patents by PatentIndex Score
22 records- 0196US6616270B1Ink jet recording head and ink jet recording apparatus comprising the sameSEIKO EPSON CORP·Filed 2000·Granted Sep 9, 2003·75 cites·52 claims
- 0293US6089701AInk jet recording head having reduced stress concentration near the boundaries of pressure generating chambersSEIKO EPSON CORP·Filed 1997·Granted Jul 18, 2000·75 cites·12 claims
- 0387US6109736AInk jet recording head containing a sealed fluid for protecting a piezoelectric vibratorSEIKO EPSON CORP·Filed 1998·Granted Aug 29, 2000·58 cites·21 claims
- 0485US6113225AInk jet type recording headSEIKO EPSON CORP·Filed 1998·Granted Sep 5, 2000·51 cites·28 claims
- 0579US6966635B2Ink jet recording head and ink jet recording apparatus comprising the sameSEIKO EPSON CORP·Filed 2003·Granted Nov 22, 2005·16 cites·9 claims
- 0679US6609785B2Ink jet recording head having piezoelectric element and electrode patterned with same shape and without pattern shift therebetweenSEIKO EPSON CORP·Filed 1997·Granted Aug 26, 2003·25 cites·11 claims
- 0779US6019458AInk-jet printing head for improving resolution and decreasing crosstalkSEIKO EPSON CORP·Filed 1996·Granted Feb 1, 2000·33 cites·9 claims
- 0878US6142614APiezoelectric actuator using passivation film or interlayer insulating film along with an insulating film to obtain better adhesionSEIKO EPSON CORP·Filed 1997·Granted Nov 7, 2000·36 cites·18 claims
- 0975US7673975B2Ink jet recording head having piezoelectric element and electrode patterned with same shape and without pattern shift therebetweenSEIKO EPSON CORP·Filed 2006·Granted Mar 9, 2010·4 cites·10 claims
- 1067USRE39474EMethod of manufacturing an ink jet recording head having reduced stress concentration near the boundaries of the pressure generating chambersSEIKO EPSON CORP·Filed 2002·Granted Jan 23, 2007·9 cites·52 claims
- 1164USRE45057EMethod of manufacturing an ink jet recording head having piezoelectric elementSEIKO EPSON CORP·Filed 2012·Granted Aug 5, 2014·0 cites·8 claims
- 1264US6260960B1Ink jet print head formed through anisotropic wet and dry etchingSEIKO EPSON CORP·Filed 1997·Granted Jul 17, 2001·21 cites·16 claims
- 1361US7354140B2Ink jet recording head having piezoelectric element and electrode patterned with same shape and without pattern shift therebetweenSEIKO EPSON CORP·Filed 2003·Granted Apr 8, 2008·4 cites·5 claims
- 1459US7003857B1Method of producing an ink-jet printing headSEIKO EPSON CORP·Filed 2000·Granted Feb 28, 2006·7 cites·21 claims
- 1557US6334244B2Method for producing ink-jet recording headSEIKO EPSON CORP·Filed 1999·Granted Jan 1, 2002·14 cites·6 claims
- 1655US7827659B2Method of manufacturing an ink jet recording head having piezoelectric elementSEIKO EPSON CORP·Filed 2007·Granted Nov 9, 2010·0 cites·8 claims
- 1752US7850288B2Ink jet recording head having piezoelectric element and electrode patterned with same shape and without pattern shift therebetweenSEIKO EPSON CORP·Filed 2006·Granted Dec 14, 2010·0 cites·20 claims
- 1852US6183070B1Ink jet recording head and process of manufacturing the ink jet recording headSEIKO EPSON CORP·Filed 1997·Granted Feb 6, 2001·12 cites·17 claims
- 1946US6402971B2Ink jet recording head and manufacturing method thereforSEIKO EPSON CORP·Filed 1999·Granted Jun 11, 2002·5 cites·17 claims
- 2043US6126279AInk jet printing head for improving resolution and decreasing crosstalkSEIKO EPSON CORP·Filed 1998·Granted Oct 3, 2000·6 cites·4 claims
- 2142US6209992B1Ink-jet recording head, ink-jet recording apparatus using the same, and method for producing ink-jet recording headSEIKO EPSON CORP·Filed 1997·Granted Apr 3, 2001·6 cites·7 claims
- 2235US2015281019A1Information communication system, information processing apparatus and information provision methodSEIKO EPSON CORP·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →