P

Inventor

IIJIMA YOSHITAKA

JP29 patents
⚠️ This page may combine multiple inventors who share the name “IIJIMA YOSHITAKA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SEIKO EPSON CORP

18 patents
US5563445AOct 8, 1996

Semiconductor device

SEIKO EPSON CORP54 citations95
US6476579B1Nov 5, 2002

Pulse motor driving device, pulse motor driving method, timepiece device, and timepiece device control method

SEIKO EPSON CORP22 citations92
US5802016ASep 1, 1998

Electronic watch

SEIKO EPSON CORP50 citations90
US6800983B1Oct 5, 2004

Magnetic circuit structure, and power-generating device and electronic device using the same

SEIKO EPSON CORP13 citations84
US6630852B2Oct 7, 2003

Power-generation detection circuit for use in an electronic device and power-generation detection method and power consumption control method for use in connection therewith

SEIKO EPSON CORP13 citations84
US6476580B1Nov 5, 2002

Electronic apparatus and control method for electronic apparatus

SEIKO EPSON CORP19 citations84
US6522603B1Feb 18, 2003

Charging device for electronic timepiece, electronic timepiece, and method for controlling charging device

SEIKO EPSON CORP15 citations83
US6452358B1Sep 17, 2002

Electronic apparatus and control method for electronic apparatus

SEIKO EPSON CORP7 citations74
US10653327B2May 19, 2020

Biological information detection device

SEIKO EPSON CORP2 citations73
US9241644B2Jan 26, 2016

Biological information detector, biological information measuring device, and method for designing reflecting part in biological information detector

SEIKO EPSON CORP3 citations73
US9912044B2Mar 6, 2018

Antenna built-in portable device

SEIKO EPSON CORP4 citations68
US11226596B2Jan 18, 2022

Electronic timepiece

SEIKO EPSON CORP0 citations60
US9913582B2Mar 13, 2018

Biological information detector, biological information measuring device, and method for designing reflecting part in biological information detector

SEIKO EPSON CORP0 citations52
US9179848B2Nov 10, 2015

Biological information detector, biological information measuring device, and method for designing reflecting part in biological information detector

SEIKO EPSON CORP0 citations52
US10754303B2Aug 25, 2020

Electronic timepiece

SEIKO EPSON CORP0 citations49
US10037008B2Jul 31, 2018

Electronic timepiece

SEIKO EPSON CORP1 citations49
US9989932B2Jun 5, 2018

Electronic timepiece

SEIKO EPSON CORP0 citations49
US10241474B2Mar 26, 2019

Electronic watch

SEIKO EPSON CORP0 citations39

NISSAN MOTOR

5 patents

IIJIMA YOSHITAKA

3 patents

YAMASHITA HIDETO

2 patents

SATO SHIGEMI

1 patent