Inventor
KAWATA MASAYUKI
JP31 patents
⚠️ This page may combine multiple inventors who share the name “KAWATA MASAYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEIKO INSTR INC
14 patentsUS6269053B1Jul 31, 2001
Small-sized electronic appliance with a sensor
SEIKO INSTR INC36 citations92
US5889735AMar 30, 1999
Thermoelectrically powered wrist watch
SEIKO INSTR INC54 citations92
US6088300AJul 11, 2000
Calendar electronic timepiece
SEIKO INSTR INC23 citations91
US6738111B2May 18, 2004
Arm portable information apparatus
SEIKO INSTR INC17 citations84
US6233203B1May 15, 2001
Electronic timepiece
SEIKO INSTR INC14 citations74
US6075757AJun 13, 2000
Thermoelectrically operated timepiece
SEIKO INSTR INC8 citations74
US11237521B2Feb 1, 2022
Timepiece movement and timepiece
SEIKO INSTR INC3 citations73
US6582118B1Jun 24, 2003
Electronic timepiece having transmission wheel rotational position detecting apparatus
SEIKO INSTR INC7 citations72
US6584040B1Jun 24, 2003
Electronic timepiece
SEIKO INSTR INC9 citations72
US6088302AJul 11, 2000
Electronic timepiece
SEIKO INSTR INC7 citations72
US5091670AFeb 25, 1992
Ultrasonic motor
SEIKO INSTR INC11 citations70
US6876410B2Apr 5, 2005
Portable information apparatus and film liquid crystal device
SEIKO INSTR INC2 citations63
US10824115B2Nov 3, 2020
Timepiece
SEIKO INSTR INC1 citations62
US7064797B2Jun 20, 2006
Portable electronic apparatus having curved thin film-type display member
SEIKO INSTR INC0 citations52
SEIKO EPSON CORP
3 patentsUS5906582AMay 25, 1999
Organism information measuring method and arm wear type pulse-wave measuring method
SEIKO EPSON CORP94 citations98
US5781511AJul 14, 1998
Wrist-worn portable electronic device
SEIKO EPSON CORP46 citations92
US5735800AApr 7, 1998
Wrist-worn portable device and a wrist-worn pulse wave measuring device
SEIKO EPSON CORP42 citations92