Inventor
ATSUMI SHIRO
JP4 patents
Patents
4 patentsUS5736781AApr 7, 1998
IC module and a data carrier employing the same
OKI ELECTRIC IND CO LTD36 citations89
US5544014AAug 6, 1996
IC card having a built-in semiconductor integrated circuit device
OKI ELECTRIC IND CO LTD39 citations89
US5442165AAug 15, 1995
Secure IC card system with reusable prototype IC card
OKI ELECTRIC IND CO LTD25 citations89
US5034597AJul 23, 1991
IC cards and information storage circuit therefor
OKI ELECTRIC IND CO LTD64 citations89