Inventor · disambiguated record
Eiichi Nagasaka
Also filed as: NAGASAKA EIICHI
11 granted patents·3 pending applications·173 citations·filing 1996–2024
88Inventor score
Files withSEIKO EPSON CORP14
Top patents by PatentIndex Score
14 records- 0194US5751091APiezoelectric power generator for a portable power supply unit and portable electronic device equipped with sameSEIKO EPSON CORP·Filed 1996·Granted May 12, 1998·103 cites·4 claims
- 0279US11829108B2Timepiece part and timepieceSEIKO EPSON CORP·Filed 2022·Granted Nov 28, 2023·0 cites·11 claims
- 0378US7170826B2Multifunctional watchSEIKO EPSON CORP·Filed 2004·Granted Jan 30, 2007·22 cites·15 claims
- 0475US7031230B1Starter for electricmagnetic converter, and timepieceSEIKO EPSON CORP·Filed 2000·Granted Apr 18, 2006·19 cites·7 claims
- 0574US10747178B2Mechanical component and timepieceSEIKO EPSON CORP·Filed 2018·Granted Aug 18, 2020·1 cites·24 claims
- 0670US12332605B2Electronically controlled mechanical timepieceSEIKO EPSON CORP·Filed 2022·Granted Jun 17, 2025·0 cites·7 claims
- 0765US11409244B2Timepiece part and timepieceSEIKO EPSON CORP·Filed 2019·Granted Aug 9, 2022·0 cites·7 claims
- 0864US2024427289A1Method Of Manufacturing Wheel For Timepiece, Plate-Shaped Member, Wheel For Timepiece, And TimepieceSEIKO EPSON CORP·Filed 2024·Application pending·0 cites
- 0956US7536779B2Method of manufacturing magnetic headSEIKO EPSON CORP·Filed 2005·Granted May 26, 2009·2 cites·23 claims
- 1049US2007086276A1Multifunctional watchSEIKO EPSON CORP·Filed 2006·Application pending·0 cites
- 1147US7832924B2TimepieceSEIKO EPSON CORP·Filed 2008·Granted Nov 16, 2010·0 cites·8 claims
- 1247US6097675AElectronically controlled mechanical timepieceSEIKO EPSON CORP·Filed 1998·Granted Aug 1, 2000·13 cites·13 claims
- 1345US6603236B2Electronic timepieceSEIKO EPSON CORP·Filed 1999·Granted Aug 5, 2003·13 cites·24 claims
- 1443US2008022511A1Method of manufacturing magnetic core, magnetic core, electromagnetic transducer, clock, and electronic deviceSEIKO EPSON CORP·Filed 2007·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →