Inventor · disambiguated record
Keigo Iizawa
Also filed as: IIZAWA KEIGO
20 granted patents·242 citations·filing 2002–2023
95Inventor score
Top patents by PatentIndex Score
20 records- 0198US9079413B2Liquid conatiner, liquid consuming apparatus, liquid supply system and liquid container unitSEIKO EPSON CORP·Filed 2013·Granted Jul 14, 2015·25 cites·9 claims
- 0297US8905504B2Liquid accommodation member, liquid accommodation member unit and liquid consumption deviceSEIKO EPSON CORP·Filed 2013·Granted Dec 9, 2014·23 cites·5 claims
- 0396US9290001B2Liquid container, liquid consuming apparatus, liquid supply system and liquid container unitSEIKO EPSON CORP·Filed 2015·Granted Mar 22, 2016·9 cites·10 claims
- 0495US10112399B2Liquid container, liquid consuming apparatus, liquid supply system and liquid container unitSEIKO EPSON CORP·Filed 2016·Granted Oct 30, 2018·8 cites·12 claims
- 0594US8084918B2Surface acoustic wave device and surface acoustic wave oscillatorIIZAWA KEIGO·Filed 2011·Granted Dec 27, 2011·19 cites·3 claims
- 0693US9855761B2Ink tank unit, ink jet printer, and ink tankSEIKO EPSON CORP·Filed 2016·Granted Jan 2, 2018·5 cites·8 claims
- 0792US8237326B2Surface acoustic wave device and surface acoustic wave oscillatorIIZAWA KEIGO·Filed 2011·Granted Aug 7, 2012·13 cites·3 claims
- 0891US8063534B2Surface acoustic wave device and surface acoustic wave oscillatorIIZAWA KEIGO·Filed 2009·Granted Nov 22, 2011·20 cites·7 claims
- 0985US6856218B2Surface acoustic wave device and communications apparatus using the sameSEIKO EPSON CORP·Filed 2002·Granted Feb 15, 2005·28 cites·2 claims
- 1084US9487012B2Ink tank unit, ink jet printer, and ink tankSEIKO EPSON CORP·Filed 2014·Granted Nov 8, 2016·3 cites·10 claims
- 1184US7352104B2Surface acoustic wave element, method of manufacturing the same and surface acoustic wave deviceSEIKO EPSON CORP·Filed 2004·Granted Apr 1, 2008·26 cites·9 claims
- 1283US8598766B2Surface acoustic wave resonator, surface acoustic wave oscillator, and electronic apparatusOWAKI TAKUYA·Filed 2011·Granted Dec 3, 2013·9 cites·11 claims
- 1379US6784595B2Method for adjusting the temperature-dependent property of a surface acoustic wave device and a surface acoustic deviceSEIKO EPSON CORP·Filed 2002·Granted Aug 31, 2004·20 cites·8 claims
- 1477US6774747B2Surface acoustic wave deviceSEIKO EPSON CORP·Filed 2002·Granted Aug 10, 2004·18 cites·6 claims
- 1571US8791621B2Surface acoustic wave resonator, surface acoustic wave oscillator, and electronic apparatusSEIKO EPSON CORP·Filed 2013·Granted Jul 29, 2014·3 cites·19 claims
- 1669US12447765B2Liquid ejectorSEIKO EPSON CORP·Filed 2023·Granted Oct 21, 2025·0 cites·7 claims
- 1767US8928432B2Surface acoustic wave resonator, surface acoustic wave oscillator, and electronic apparatusOWAKI TAKUYA·Filed 2011·Granted Jan 6, 2015·3 cites·20 claims
- 1865US12208630B2Recording deviceSEIKO EPSON CORP·Filed 2023·Granted Jan 28, 2025·0 cites·9 claims
- 1965US6946932B2Surface acoustic wave resonator with an interdigital transducer divided into regions having a different fixed pitchSEIKO EPSON CORP·Filed 2003·Granted Sep 20, 2005·10 cites·5 claims
- 2054US9994033B2Liquid supply device and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2017·Granted Jun 12, 2018·0 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →