P

Inventor

HAYAKAWA MOTOMU

JP26 patents
⚠️ This page may combine multiple inventors who share the name “HAYAKAWA MOTOMU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SEIKO EPSON CORP

23 patents
US6217523B1Apr 17, 2001

Blood pulse wave detecting apparatus and motion intensity measuring apparatus

SEIKO EPSON CORP142 citations99
US6022321AFeb 8, 2000

Blood pulse wave detecting apparatus and motion intensity measuring apparatus

SEIKO EPSON CORP211 citations99
US4873677AOct 10, 1989

Charging apparatus for an electronic device

SEIKO EPSON CORP229 citations99
US6721540B1Apr 13, 2004

Electronic device

SEIKO EPSON CORP126 citations98
US6265789B1Jul 24, 2001

Electronic apparatus

SEIKO EPSON CORP198 citations98
US6575618B1Jun 10, 2003

Information processing device

SEIKO EPSON CORP113 citations97
US6316909B1Nov 13, 2001

Electronic device, control method for electronic device, recharge-rate estimating method for secondary battery, and charging control method for secondary battery

SEIKO EPSON CORP108 citations97
US6313612B1Nov 6, 2001

Electronic device, electronic device to be charged and method of controlling electronic devices

SEIKO EPSON CORP54 citations96
US4882717ANov 21, 1989

Charging circuit for an analog electronic timepiece

SEIKO EPSON CORP75 citations95
US7265520B2Sep 4, 2007

Electronic apparatus and method of controlling the electronic apparatus

SEIKO EPSON CORP22 citations92
US6469472B1Oct 22, 2002

Electronic device and control method for the same

SEIKO EPSON CORP28 citations92
US5908396AJun 1, 1999

Pitch measurement device, electronic instrument, and pitch measurement method

SEIKO EPSON CORP54 citations92
US5854758ADec 29, 1998

Fast fourier transformation computing unit and a fast fourier transformation computation device

SEIKO EPSON CORP20 citations92
US5766132AJun 16, 1998

Wrist-worn portable device and a wrist-worn pulse wave measuring device

SEIKO EPSON CORP50 citations92
US5759156AJun 2, 1998

Period and frequency measurement device with correction device and method thereof

SEIKO EPSON CORP26 citations92
US5776070AJul 7, 1998

Pulse rate counter utilizing body movement amptitude detection

SEIKO EPSON CORP23 citations88
US7280996B2Oct 9, 2007

Data updating method and related information processing device

SEIKO EPSON CORP49 citations86
US7065668B2Jun 20, 2006

Apparatus for selecting and outputting either a first clock signal or a second clock signal

SEIKO EPSON CORP16 citations84
US6888355B2May 3, 2005

Electronic apparatus having battery power source and control method for the electronic apparatus

SEIKO EPSON CORP12 citations84
US6023662AFeb 8, 2000

Measurement device, portable electronic instrument, and measurement method

SEIKO EPSON CORP10 citations74
US5130960AJul 14, 1992

Power supplies for electronic device

SEIKO EPSON CORP11 citations74
US4910721AMar 20, 1990

Electronic watch

SEIKO EPSON CORP12 citations74
US7952600B2May 31, 2011

Image forming method for forming images of plural colors on an image carrier at once

SEIKO EPSON CORP2 citations61

SEIKO INSTR INC

2 patents

SEIKO ESPON CORP

1 patent