Inventor · disambiguated record
Kei Hirano
Also filed as: HIRANO KEI · HIRANO KEI-ICHI
13 granted patents·3 pending applications·56 citations·filing 2002–2012
89Inventor score
Top patents by PatentIndex Score
16 records- 0188US7215602B2Multifunction timepiece capable of constituting plural fan shape moving hand train wheel layoutsSEIKO INSTR INC·Filed 2005·Granted May 8, 2007·13 cites·11 claims
- 0279US8279717B2Calendar mechanism and analog timepiece equipped with same mechanismHIRANO KEI·Filed 2010·Granted Oct 2, 2012·5 cites·20 claims
- 0371US8724430B2Retrograde display mechanism and timepiece having the sameHIRANO KEI·Filed 2012·Granted May 13, 2014·3 cites·20 claims
- 0470US7275860B2Display correcting mechanism and timepiece having display correcting mechanismSEIKO INSTR INC·Filed 2005·Granted Oct 2, 2007·6 cites·9 claims
- 0566US7609588B2Multifunctional clock capable of realizing plurality of movement layoutsSEIKO INSTR INC·Filed 2004·Granted Oct 27, 2009·8 cites·13 claims
- 0663US7269102B2Multifunction timepiece having fan shape moving hand train wheel and fan shape moving hand train wheel apparatusSEIKO INSTR INC·Filed 2005·Granted Sep 11, 2007·2 cites·3 claims
- 0760US7443768B2Multifunctional timepiece including plural types of hand operating train wheelsSEIKO INSTR INC·Filed 2004·Granted Oct 28, 2008·6 cites·9 claims
- 0859US6965544B2Electronic timepieceSEIKO INSTR INC·Filed 2003·Granted Nov 15, 2005·7 cites·13 claims
- 0954US7269101B2Multifunction timepiece having fan shape moving hand mechanism including return spring and fan shape moving hand train wheel apparatusSEIKO INSTR INC·Filed 2005·Granted Sep 11, 2007·2 cites·10 claims
- 1052US8279718B2Calendar mechanism and analog timepiece equipped with same mechanismHIRANO KEI·Filed 2010·Granted Oct 2, 2012·1 cites·20 claims
- 1149US6987712B2Analog chronograph timepiece having plural motorsSEIKO INSTR INC·Filed 2003·Granted Jan 17, 2006·2 cites·28 claims
- 1248US6755567B2Hand motion irregularity suppressed timepieceSEIKO INSTR INC·Filed 2003·Granted Jun 29, 2004·1 cites·20 claims
- 1344US7961556B2Day display apparatus and watch having the sameSEIKO INSTR INC·Filed 2009·Granted Jun 14, 2011·0 cites·19 claims
- 1440US2007201315A1TimepieceHIRANO KEI·Filed 2007·Application pending·0 cites
- 1540US2004027923A1Analog electronic timepiece having train wheel setting leverFiled 2003·Application pending·0 cites
- 1628US2003048054A1Artificial solar wind generatorNAT INST FOR FUSION SCIENCE·Filed 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →