Inventor
NAKAMURA CHIAKI
JP32 patents
⚠️ This page may combine multiple inventors who share the name “NAKAMURA CHIAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEIKO INSTR INC
17 patentsUS6246362B1Jun 12, 2001
Portable GPS signal receiving apparatus
SEIKO INSTR INC162 citations99
US5926131AJul 20, 1999
GPS receiving apparatus
SEIKO INSTR INC140 citations98
US5905460AMay 18, 1999
Wrist watch type GPS receiver
SEIKO INSTR INC155 citations98
US5697374ADec 16, 1997
Pulse rate monitor
SEIKO INSTR INC117 citations97
US6809498B2Oct 26, 2004
Power supply apparatus and electronic equipment
SEIKO INSTR INC70 citations96
US6758816B1Jul 6, 2004
Pulse wave detector
SEIKO INSTR INC55 citations96
US5475725ADec 12, 1995
Pulse meter with pedometer function
SEIKO INSTR INC84 citations96
US6009375ADec 28, 1999
Portable GPS receiver
SEIKO INSTR INC45 citations93
US6371920B1Apr 16, 2002
Pulse wave detecting device
SEIKO INSTR INC39 citations92
US4785435ANov 15, 1988
Self-chargeable electronic timepiece with operating voltage checking
SEIKO INSTR INC31 citations91
US6295248B1Sep 25, 2001
Electronic tide meter, method for calculating a high/low tide time and computer algorithm for executing the same
SEIKO INSTR INC9 citations74
US5280459AJan 18, 1994
Electronic timepiece
SEIKO INSTR INC14 citations74
US6129676AOct 10, 2000
Movement rate monitor
SEIKO INSTR INC13 citations73
US4750099AJun 7, 1988
Circuit for charging capacitors
SEIKO INSTR INC10 citations71
US6226594B1May 1, 2001
Electronic tide meter, spring tide day calculating method, and recording medium for the same
SEIKO INSTR INC6 citations63
US6798718B1Sep 28, 2004
Sensor timepiece, sensor timepiece data input system and method, and computer readable recording medium
SEIKO INSTR INC1 citations52
US5857465AJan 12, 1999
Biosignal display apparatus
SEIKO INSTR INC1 citations52
SEIKO EPSON CORP
8 patentsUS6155983ADec 5, 2000
Pulse wave detecting device and pulse measurer
SEIKO EPSON CORP60 citations96
US5795301AAug 18, 1998
Display method used in portable pulse measuring device
SEIKO EPSON CORP64 citations95
US6099478AAug 8, 2000
Pulse counter and pulse display method
SEIKO EPSON CORP52 citations92
US5908396AJun 1, 1999
Pitch measurement device, electronic instrument, and pitch measurement method
SEIKO EPSON CORP54 citations92
US5787054AJul 28, 1998
Portable electronic device
SEIKO EPSON CORP24 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
US6023662AFeb 8, 2000
Measurement device, portable electronic instrument, and measurement method
SEIKO EPSON CORP10 citations74
DAINIPPON INK & CHEMICALS
4 patentsUS4278728AJul 14, 1981
Embossed interior finishing materials having excellent cigarette mark resistance
DAINIPPON INK & CHEMICALS47 citations92
US4591545AMay 27, 1986
Photosensitive image-forming material having a layer of photosensitive polyester modified with chain extender
DAINIPPON INK & CHEMICALS5 citations70
US4640887AFeb 3, 1987
Photosensitive image-forming material comprised of carboxyl groups developable in aqueous alkaline base solutions
DAINIPPON INK & CHEMICALS4 citations60
US4684601AAug 4, 1987
Photosensitive image-forming material having a layer of photosensitive polyester modified with chain extender
DAINIPPON INK & CHEMICALS4 citations59