Inventor · disambiguated record
Kouji Sumi
Also filed as: SUMI KOUJI
16 granted patents·521 citations·filing 1996–2004
95Inventor score
Files withSEIKO EPSON CORP16
Top patents by PatentIndex Score
16 records- 0196US6140746APiezoelectric thin film, method for producing the same, and ink jet recording head using the thin filmSEIKO EPSON CORP·Filed 1996·Granted Oct 31, 2000·119 cites·31 claims
- 0292US6013970APiezoelectric 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
- 0389US6103072APiezoelectric 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
- 0487US6511161B2Piezoelectric thin film component, inkjet type recording head and inkjet printer using this [piezoelectric thin film component], and method of manufacturing piezoelectric thin film componentSEIKO EPSON CORP·Filed 2001·Granted Jan 28, 2003·28 cites·4 claims
- 0586US6402303B1Functional thin film with a mixed layer, piezoelectric device, ink jet recording head using said piezoelectric device, and ink jet printer using said recording headSEIKO EPSON CORP·Filed 1999·Granted Jun 11, 2002·47 cites·14 claims
- 0684US6194818B1Piezoelectric thin film component, injet type recording head and inkjet printer using this (piezoelectric thin film component), and method of manufacturing piezoelectric thin film componentSEIKO EPSON CORP·Filed 1999·Granted Feb 27, 2001·39 cites·12 claims
- 0781US6711793B2Method of producing a piezoelectric device having at least one piezoelectric thin film layerSEIKO EPSON CORP·Filed 2002·Granted Mar 30, 2004·19 cites·9 claims
- 0878US6158847ALaminated 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
- 0976US6411017B1Piezoelectric device, ink jet recording head, and methods of manufacturing said device and headSEIKO EPSON CORP·Filed 1999·Granted Jun 25, 2002·33 cites·8 claims
- 1075US6328433B1Piezoelectric film element and ink-jet recording head using the sameSEIKO EPSON CORP·Filed 1999·Granted Dec 11, 2001·28 cites·11 claims
- 1173US7240409B2Process of making a piezoelectric thin film componentSEIKO EPSON CORP·Filed 2004·Granted Jul 10, 2007·11 cites·9 claims
- 1272US6332254B1Process for producing a laminated ink-jet recording headSEIKO EPSON CORP·Filed 1999·Granted Dec 25, 2001·23 cites·11 claims
- 1367US6748635B1Method of manufacturing piezoelectric thin film componentSEIKO EPSON CORP·Filed 2000·Granted Jun 15, 2004·9 cites·2 claims
- 1447US6836940B2Process for producing a laminated ink-jet recording headSEIKO EPSON CORP·Filed 2001·Granted Jan 4, 2005·2 cites·11 claims
- 1545US6455106B1Method of forming oxide-ceramics filmSEIKO EPSON CORP·Filed 1999·Granted Sep 24, 2002·11 cites·4 claims
- 1635US6698096B2Method for manufacturing a piezoelectric film element and an ink-jet recording headSEIKO EPSON CORP·Filed 2001·Granted Mar 2, 2004·0 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →