Inventor
SAKITA KAZUTAKA
JP3 patents
Patents
3 patentsUS5502765AMar 26, 1996
Method and apparatus for settlement of accounts by IC cards
NIPPON TELEGRAPH & TELEPHONE129 citations97
US5396558AMar 7, 1995
Method and apparatus for settlement of accounts by IC cards
NIPPON TELEGRAPH & TELEPHONE235 citations97
US5446796AAug 29, 1995
Method and apparatus for settlement of accounts by IC cards
NIPPON TELEGRAPH & TELEPHONE62 citations94