KY

Kei Yonezawa

HI Hitachi: 1 patents #1,316 of 3,771Top 35%
Overall (2004): #175,716 of 270,089Top 70%
1
Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6679423 Electronic-money rewarding system for lost and found IC card Makoto Ijichi, Shigeyuki Itoh, Masaaki Hiroya, Hiroshi Asao, Naomi Sato 2004-01-20