TO

Takehiro Ookawa

HI Hitachi: 2 patents #899 of 4,225Top 25%
📍 Tachikawa, JP: #11 of 70 inventorsTop 20%
Overall (2003): #40,628 of 273,478Top 15%
2
Patents 2003

Issued Patents 2003

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6637664 Composite IC card Hiroshi Yoshigi, Tadashi Oonishi, Kazuki Watanabe 2003-10-28
6585166 Composite IC card Hiroshi Yoshigi, Tadashi Oonishi, Kazuki Watanabe 2003-07-01