Inventor · disambiguated record
Koichiro Jujo
Also filed as: JUJO KOICHIRO
17 granted patents·8 pending applications·144 citations·filing 1998–2025
93Inventor score
Files withSEIKO INSTR INC14KITAGAWA IND CO LTD3MURAKAMI YUETSU1NIWA TAKASHI1SEIKO WATCH KK TRADING AS SEIKO WATCH CORPORATION1
Top patents by PatentIndex Score
25 records- 0193US7887995B2Electroforming mold and method for manufacturing the same, and method for manufacturing electroformed componentSEIKO INSTR INC·Filed 2006·Granted Feb 15, 2011·14 cites·37 claims
- 0292US8021534B2Electroforming mold and method for manufacturing the same, and method for manufacturing electroformed componentSEIKO INSTR INC·Filed 2010·Granted Sep 20, 2011·7 cites·37 claims
- 0377US8518632B2Method of manufacturing electroforming mold, electroforming mold, and method of manufacturing electroformed componentNIWA TAKASHI·Filed 2007·Granted Aug 27, 2013·2 cites·21 claims
- 0476US8684594B2Magnetically insensitive, highly hard and constant-modulus alloy, and its production method, as well as hair spring, mechanical driving apparatus and watch and clockMURAKAMI YUETSU·Filed 2009·Granted Apr 1, 2014·4 cites·12 claims
- 0573US7350967B2Speed control mechanism and mechanical timepiece having the sameSEIKO INSTR INC·Filed 2006·Granted Apr 1, 2008·6 cites·18 claims
- 0665US6406176B1Chronograph timepieceSEIKO INSTR INC·Filed 1998·Granted Jun 18, 2002·32 cites·27 claims
- 0764US8852491B2Method manufacturing electroforming moldSEIKO INSTR INC·Filed 2013·Granted Oct 7, 2014·0 cites·20 claims
- 0864US7575800B2Sliding parts, precision parts and timepieces and electronic equipment using the sameKITAGAWA IND CO LTD·Filed 2002·Granted Aug 18, 2009·5 cites·6 claims
- 0964US6554468B1Mechanical timepiece with timed annular balance rotating angle control mechanismSEIKO INSTR INC·Filed 1999·Granted Apr 29, 2003·16 cites·24 claims
- 1063US7167420B2Timepiece including base plate formed of resin and wheel trainSEIKO INSTR INC·Filed 2002·Granted Jan 23, 2007·8 cites·14 claims
- 1162US6166999AClock with a mainspring wound state indicatorSEIKO INSTR INC·Filed 1998·Granted Dec 26, 2000·19 cites·8 claims
- 1253US6609822B1Rate adjusting method of mechanical timepiecesSEIKO INSTR INC·Filed 1999·Granted Aug 26, 2003·11 cites·14 claims
- 1350US6804172B2Analog electronic timepiece including plural indicator wheelsSEIKO INSTR INC·Filed 2002·Granted Oct 12, 2004·2 cites·11 claims
- 1448US2009286064A1Sliding parts, precision parts and timepieces and electronic equipment using the sameKITAGAWA IND CO LTD·Filed 2009·Application pending·0 cites
- 1546US2025306536A1Timepiece part, movement, timepiece exterior, timepiece, and method for manufacturing timepiece partSEIKO WATCH KK TRADING AS SEIKO WATCH CORPORATION·Filed 2025·Application pending·0 cites
- 1646US2011086976A1Sliding parts, precision parts and timepieces and electronic equipment using the sameKITAGAWA IND CO LTD·Filed 2010·Application pending·0 cites
- 1745US6431746B1Mechanical timepiece with timed annular balance rotating angle control mechanismSEIKO INSTR INC·Filed 1999·Granted Aug 13, 2002·11 cites·9 claims
- 1844US7170827B2Timepiece, having bearing portion formed of resin and wheel trainSEIKO INSTR INC·Filed 2002·Granted Jan 30, 2007·0 cites·12 claims
- 1943US2005196087A1Ball bearing and self-winding timepieceFiled 2005·Application pending·0 cites
- 2042US6422348B1Transmission wheel, method for manufacturing transmission wheel and self-winding wheel train structure having transmission wheelSEIKO INSTR INC·Filed 1999·Granted Jul 23, 2002·7 cites·20 claims
- 2142US2002167865A1Hairspring, hairspring structure and speed control mechanism and timepiece using the sameFiled 2002·Application pending·0 cites
- 2241US2005128877A1Alarm electronic timepiece and conductive springFiled 2002·Application pending·0 cites
- 2336US2005127782A1Ultrasonic motor, and electronic timepiece having ultrasonic motorFiled 2002·Application pending·0 cites
- 2435US2003137901A1Mechanical timepiece with posture detector and the posture detectorFiled 2000·Application pending·0 cites
- 2529US6507537B1Power reserve mechanismSEIKO INSTR INC·Filed 1998·Granted Jan 14, 2003·0 cites·28 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →