The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 25, 2000
Filed:
May. 23, 1997
Masayoshi Kamo, Kanagawa, JP;
Kazuo Hasegawa, Kanagawa, JP;
Atsuo Onoda, Kanagawa, JP;
Yuuji Oomura, Kanagawa, JP;
Masao Sato, Kanagawa, JP;
Hidetada Nagaoka, Kanagawa, JP;
Yukio Izumi, Kanagawa, JP;
Akira Hashimoto, Kanagawa, JP;
Keiichi Nishikawa, Kanagawa, JP;
Yoichi Muratomi, Hyogo, JP;
Yasutaka Mizutani, Kanagawa, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A head assembly moving along a long side of a magnetic card, more than one magnetic head rotating in the head assembly for reading/writing data, a rotary transformer and a carriage with a card holding mechanism for keeping a card at a predefined position are provided in a card reader of the present invention. A rotating part of the rotary transformer in the head assembly receives and sends a signal to the magnetic head and a fixing part of the rotary transformer is connected to a reading/writing circuit. On the card of the present invention, which is usually rectangular, there are tracks defined by plural arcs. The arcs are on plural same-size circles whose centers are aligned on one line along the long side of the card. A magnetic card or an optical card can be used for the present invention.