Inventor
KOYAMA SHUNSUKE
JP15 patents
⚠️ This page may combine multiple inventors who share the name “KOYAMA SHUNSUKE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEIKO EPSON CORP
14 patentsUS5757326AMay 26, 1998
Slot antenna device and wireless apparatus employing the antenna device
SEIKO EPSON CORP159 citations98
US6946996B2Sep 20, 2005
Antenna apparatus, printed wiring board, printed circuit board, communication adapter and portable electronic equipment
SEIKO EPSON CORP106 citations97
US5940041AAug 17, 1999
Slot antenna device and wireless apparatus employing the antenna device
SEIKO EPSON CORP51 citations96
US6744698B2Jun 1, 2004
Battery powered electronic device and control method therefor
SEIKO EPSON CORP41 citations92
US6531988B1Mar 11, 2003
Antenna device for high-frequency radio apparatus, high-frequency radio apparatus, and watch-shaped radio apparatus
SEIKO EPSON CORP20 citations92
US5280646AJan 18, 1994
Paging device with structure for removing static electricity
SEIKO EPSON CORP41 citations92
US6762728B2Jul 13, 2004
Antenna device for high-frequency radio apparatus and wrist watch-type radio apparatus
SEIKO EPSON CORP16 citations84
US6396144B1May 28, 2002
Mounting structure of semiconductor device, and communication apparatus using the same
SEIKO EPSON CORP10 citations73
US5530453AJun 25, 1996
Wrist carried wireless instrument
SEIKO EPSON CORP15 citations73
US5225846AJul 6, 1993
Wrist carried wireless instrument
SEIKO EPSON CORP10 citations73
US5072231ADec 10, 1991
Wrist carried wireless instrument
SEIKO EPSON CORP14 citations73
US8934385B2Jan 13, 2015
Wireless communication apparatus and electronic device
SEIKO EPSON CORP2 citations61
US9979075B2May 22, 2018
Antenna device and electronic timepiece
SEIKO EPSON CORP1 citations52
US9853354B2Dec 26, 2017
Sleeve antenna and wireless communication device
SEIKO EPSON CORP0 citations41