Inventor
SHINRIKI TETSUO
JP3 patents
Patents
3 patentsUS7302572B2Nov 27, 2007
Portable information storage medium and its authentication method
DAINIPPON PRINTING CO LTD19 citations81
US7367047B2Apr 29, 2008
Portable information recording medium
DAINIPPON PRINTING CO LTD5 citations59
US7325144B2Jan 29, 2008
Portable information processor having password code checking function
DAINIPPON PRINTING CO LTD4 citations59