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:
Jul. 06, 2010
Filed:
Feb. 16, 2004
Yoshinobu Honkura, Aichi, JP;
Kazuo Arai, Aichi, JP;
Eiki Kikuchi, Aichi, JP;
Yuh-yuan Shiau, Taipei, TW;
Che-tong Lin, Taipei, TW;
Yoshinobu Honkura, Aichi, JP;
Kazuo Arai, Aichi, JP;
Eiki Kikuchi, Aichi, JP;
Yuh-yuan Shiau, Taipei, TW;
Che-tong Lin, Taipei, TW;
Aichi Steel Corporation, Tokai-shi, JP;
Abstract
A dental attachment includes a magnet element delivering a magnetic attraction force, a yoke made of a soft magnetic material and having a recess for housing the magnet element, and a disc consisting of the soft magnetic material and joined to the yoke so as to close the opening of the recess with the magnet element housed in the recess. The yoke has an almost disc shape and has collars protruding radially outwardly from the outer peripheral surface thereof. The collars are formed to be separated in at least two locations in a substantially peripheral direction, and non-protruding portions having radially outward projection amounts of zero or up to 50% of the maximum projection amount at the collars are provided between respective collars.