Inventor · disambiguated record
Motomu Hayakawa
Also filed as: HAYAKAWA MOTOMU
26 granted patents·2 pending applications·1,769 citations·filing 1988–2011
98Inventor score
Top patents by PatentIndex Score
28 records- 0198US4873677ACharging apparatus for an electronic deviceSEIKO EPSON CORP·Filed 1988·Granted Oct 10, 1989·229 cites·36 claims
- 0293US6721540B1Electronic deviceSEIKO EPSON CORP·Filed 2000·Granted Apr 13, 2004·126 cites·15 claims
- 0391US6265789B1Electronic apparatusSEIKO EPSON CORP·Filed 1998·Granted Jul 24, 2001·198 cites·17 claims
- 0490US4882717ACharging circuit for an analog electronic timepieceSEIKO EPSON CORP·Filed 1988·Granted Nov 21, 1989·75 cites·13 claims
- 0588US6575618B1Information processing deviceSEIKO EPSON CORP·Filed 1998·Granted Jun 10, 2003·113 cites·14 claims
- 0685US6316909B1Electronic device, control method for electronic device, recharge-rate estimating method for secondary battery, and charging control method for secondary batterySEIKO EPSON CORP·Filed 1999·Granted Nov 13, 2001·108 cites·55 claims
- 0784US5001685AElectronic wristwatch with generatorSEIKO ESPON CORP·Filed 1989·Granted Mar 19, 1991·48 cites·28 claims
- 0883US6313612B1Electronic device, electronic device to be charged and method of controlling electronic devicesSEIKO EPSON CORP·Filed 2000·Granted Nov 6, 2001·54 cites·21 claims
- 0979US7280996B2Data updating method and related information processing deviceSEIKO EPSON CORP·Filed 2001·Granted Oct 9, 2007·49 cites·5 claims
- 1078US6022321ABlood pulse wave detecting apparatus and motion intensity measuring apparatusSEIKO EPSON CORP·Filed 1997·Granted Feb 8, 2000·211 cites·10 claims
- 1174US7065668B2Apparatus for selecting and outputting either a first clock signal or a second clock signalSEIKO EPSON CORP·Filed 2004·Granted Jun 20, 2006·16 cites·9 claims
- 1273US5908396APitch measurement device, electronic instrument, and pitch measurement methodSEIKO EPSON CORP·Filed 1996·Granted Jun 1, 1999·54 cites·20 claims
- 1371US6469472B1Electronic device and control method for the sameSEIKO EPSON CORP·Filed 2000·Granted Oct 22, 2002·28 cites·24 claims
- 1471US6217523B1Blood pulse wave detecting apparatus and motion intensity measuring apparatusSEIKO EPSON CORP·Filed 1999·Granted Apr 17, 2001·142 cites·8 claims
- 1569US6888355B2Electronic apparatus having battery power source and control method for the electronic apparatusSEIKO EPSON CORP·Filed 2001·Granted May 3, 2005·12 cites·33 claims
- 1668US5697374APulse rate monitorSEIKO INSTR INC·Filed 1994·Granted Dec 16, 1997·117 cites·21 claims
- 1767US7265520B2Electronic apparatus and method of controlling the electronic apparatusSEIKO EPSON CORP·Filed 2001·Granted Sep 4, 2007·22 cites·11 claims
- 1864US7952600B2Image forming method for forming images of plural colors on an image carrier at onceSEIKO EPSON CORP·Filed 2007·Granted May 31, 2011·2 cites·2 claims
- 1953US4910721AElectronic watchSEIKO EPSON CORP·Filed 1989·Granted Mar 20, 1990·12 cites·33 claims
- 2049US2011193931A1Image Forming Apparatus and Image Forming MethodSEIKO EPSON CORP·Filed 2011·Application pending·0 cites
- 2148US5766132AWrist-worn portable device and a wrist-worn pulse wave measuring deviceSEIKO EPSON CORP·Filed 1996·Granted Jun 16, 1998·50 cites·10 claims
- 2246US5854758AFast fourier transformation computing unit and a fast fourier transformation computation deviceSEIKO EPSON CORP·Filed 1996·Granted Dec 29, 1998·20 cites·10 claims
- 2343US2003070106A1Information processing apparatusFiled 2001·Application pending·0 cites
- 2442US5130960APower supplies for electronic deviceSEIKO EPSON CORP·Filed 1991·Granted Jul 14, 1992·11 cites·13 claims
- 2539US5759156APeriod and frequency measurement device with correction device and method thereofSEIKO EPSON CORP·Filed 1996·Granted Jun 2, 1998·26 cites·20 claims
- 2634US6129676AMovement rate monitorSEIKO INSTR INC·Filed 1997·Granted Oct 10, 2000·13 cites·4 claims
- 2734US5776070APulse rate counter utilizing body movement amptitude detectionSEIKO EPSON CORP·Filed 1996·Granted Jul 7, 1998·23 cites·19 claims
- 2832US6023662AMeasurement device, portable electronic instrument, and measurement methodSEIKO EPSON CORP·Filed 1996·Granted Feb 8, 2000·10 cites·9 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →