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:
Nov. 27, 2007
Filed:
Jun. 30, 2006
Shoji Yamaguchi, Kanagawa, JP;
Yasunori Koda, Kanagawa, JP;
Kunihiro Takahashi, Kanagawa, JP;
Mario Fuse, Kanagawa, JP;
Tsukasa Matsuda, Kanagawa, JP;
Shoji Yamaguchi, Kanagawa, JP;
Yasunori Koda, Kanagawa, JP;
Kunihiro Takahashi, Kanagawa, JP;
Mario Fuse, Kanagawa, JP;
Tsukasa Matsuda, Kanagawa, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
A recording medium detecting system includes a magnetic field-generating unit that generates an alternating magnetic field in a predetermined particular region, a detecting unit provided close to the particular region, that detects a change in magnetic flux density not smaller than a predetermined magnetic-flux-density difference B, and a recording medium, containing multiple magnetic wires made of a magnetic material and formed in a wire shape having a predetermined length, that causes a large Barkhausen effect when the alternating magnetic field is applied. A magnetic-flux-density difference Bdetected by the detecting unit at an installation position thereof when the recording medium is placed in the particular region is not smaller than the magnetic-flux-density difference B