Inventor
YAMAGUCHI SHUUJI
JP12 patents
⚠️ This page may combine multiple inventors who share the name “YAMAGUCHI SHUUJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NEC CORP
7 patentsUS7084919B2Aug 1, 2006
Portable terminal with rotatable axial flip unit and dual lens arrangement
NEC CORP69 citations96
US7085382B2Aug 1, 2006
Communication device, communication device set, authentication method and method of wireless-connecting terminals
NEC CORP59 citations95
US6075325AJun 13, 2000
Inverter and method for driving a plurality of cold cathode tubes in parallel
NEC CORP59 citations95
US6268681B1Jul 31, 2001
Method and circuit for driving piezoelectric transformer
NEC CORP36 citations91
US6151232ANov 21, 2000
Power supply circuit utilizing a piezoelectric transformer that supplies power to a load whose impedance varies depending on temperature
NEC CORP50 citations91
US6078124AJun 20, 2000
Piezoelectric transformer driving circuit and driving method
NEC CORP9 citations72
US7492407B2Feb 17, 2009
Portable terminal with rotatable axial flip unit and dual lens arrangement
NEC CORP2 citations61
SHIBATA JUNICHIRO
2 patentsYAHOO JAPAN CORP
2 patentsUS11394709B2Jul 19, 2022
Authentication device management device, authentication device management method, non-transitory computer-readable recording medium, and authentication device management system
YAHOO JAPAN CORP2 citations69
US11153292B2Oct 19, 2021
Authentication apparatus and method for clustering and authenticating users
YAHOO JAPAN CORP0 citations50