Inventor · disambiguated record
Joji Kitahara
Also filed as: KITAHARA JOJI
24 granted patents·3 pending applications·532 citations·filing 1990–2010
97Inventor score
Top patents by PatentIndex Score
27 records- 0197US7583564B2Piezoelectric actuator and electronic equipment with piezoelectric actuatorSEIKO EPSON CORP·Filed 2006·Granted Sep 1, 2009·46 cites·16 claims
- 0293US7027360B2Electronic timepiece with a date display functionSEIKO EPSON CORP·Filed 2003·Granted Apr 11, 2006·74 cites·9 claims
- 0392US7109638B2Piezoelectric actuator, timepiece, and electronic deviceSEIKO EPSON CORP·Filed 2005·Granted Sep 19, 2006·32 cites·9 claims
- 0488US7876070B2Electronic timepiece with generator functionSEIKO EPSON CORP·Filed 2008·Granted Jan 25, 2011·8 cites·6 claims
- 0586US6320822B1Electronic equipment and control method for electronic equipmentSEIKO EPSON CORP·Filed 1998·Granted Nov 20, 2001·91 cites·55 claims
- 0676US7158449B2Electronic timepiece and electronic apparatusSEIKO EPSON CORP·Filed 2003·Granted Jan 2, 2007·19 cites·18 claims
- 0774US6424600B1Portable electronic device and control method for controlling the portable electronic deviceSEIKO EPSON CORP·Filed 1999·Granted Jul 23, 2002·47 cites·54 claims
- 0870US7663978B2Drive control apparatus, electronic apparatus, method of controlling drive of electronic apparatus, drive control program, and recording mediumSEIKO EPSON CORP·Filed 2005·Granted Feb 16, 2010·4 cites·14 claims
- 0967US7616527B2Electronic timepiece with calendar function and control method for sameSEIKO EPSON CORP·Filed 2005·Granted Nov 10, 2009·3 cites·22 claims
- 1066US5237237AUltrasonic motor and drive methodSEIKO EPSON CORP·Filed 1991·Granted Aug 17, 1993·26 cites·21 claims
- 1164US6163126AElectronic deviceSEIKO EPSON CORP·Filed 1998·Granted Dec 19, 2000·29 cites·40 claims
- 1261US7859949B2TimepieceSEIKO EPSON CORP·Filed 2009·Granted Dec 28, 2010·3 cites·7 claims
- 1360US8189431B2Piezoelectric drive device and electronic deviceKITAHARA JOJI·Filed 2010·Granted May 29, 2012·2 cites·12 claims
- 1458US6262554B1Electronic device and method of controlling the sameSEIKO EPSON CORP·Filed 1999·Granted Jul 17, 2001·24 cites·36 claims
- 1558US5581519AAnalog indicator type electronic timepiece and charging method thereofSEIKO EPSON CORP·Filed 1995·Granted Dec 3, 1996·24 cites·33 claims
- 1656US6120177AElectronic watchSEIKO EPSON CORP·Filed 1998·Granted Sep 19, 2000·10 cites·14 claims
- 1756US6097672ADisplay device and watch with sameSEIKO EPSON CORP·Filed 1998·Granted Aug 1, 2000·11 cites·34 claims
- 1853US5740132AElectronic timepiece and method of charging the sameSEIKO EPSON CORP·Filed 1995·Granted Apr 14, 1998·19 cites·5 claims
- 1952US6012838AElectronic watchSEIKO EPSON CORP·Filed 1996·Granted Jan 11, 2000·9 cites·28 claims
- 2050US2006245304A1Timepiece driving apparatus and time calculating apparatusSEIKO EPSON CORP·Filed 2006·Application pending·0 cites
- 2148US6367967B1Time-measurement device and method of controlling the sameSEIKO EPSON CORP·Filed 1999·Granted Apr 9, 2002·13 cites·50 claims
- 2248US6327225B1Electronic unit, and control method for electronic unitSEIKO EPSON CORP·Filed 1999·Granted Dec 4, 2001·13 cites·19 claims
- 2347US6183125B1Electronic watchSEIKO EPSON CORP·Filed 1998·Granted Feb 6, 2001·9 cites·7 claims
- 2447US2004233794A1Timepiece driving apparatus and time calculating apparatusSEIKO EPSON CORP·Filed 2004·Application pending·0 cites
- 2543US2004233793A1Analog electronic timepieceFiled 2003·Application pending·0 cites
- 2640US5822278AElectronic timepiece and method of charging the sameSEIKO EPSON CORP·Filed 1997·Granted Oct 13, 1998·9 cites·5 claims
- 2738US5479380AUltrasonic motor for driving an analog electronic watchSEIKO EPSON CORP·Filed 1990·Granted Dec 26, 1995·7 cites·34 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →