P

Inventor

HAMADA NARIYASU

JP4 patents
⚠️ This page may combine multiple inventors who share the name “HAMADA NARIYASU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HITACHI LTD

3 patents
US5880446AMar 9, 1999

Electronic transaction method and system

HITACHI LTD187 citations97
US6520409B1Feb 18, 2003

Electronic transaction method and system

HITACHI LTD30 citations91
US6073839AJun 13, 2000

Electronic transaction method and system

HITACHI LTD19 citations91

TANIGUCHI KAZUHIKO

1 patent
US8079061B2Dec 13, 2011

Authentication system managing method

TANIGUCHI KAZUHIKO7 citations78