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:
Apr. 11, 2006
Filed:
Oct. 09, 2002
Hiroshi Sudo, Tokyo, JP;
Hiroshi Sudo, Tokyo, JP;
Ohashi Technica, Inc., Tokyo, JP;
Abstract
An object of this invention is to provide a hinge device simple in structure, excellent is cost efficiency, and excellent in durability, and a cellular phone using the hinge device. To attain this object, the hinge device includes a tubular member, a catchwhich includes engagement projected partseach having a convex surface with a specified radius of curvature formed thereon, a energizing means, and a diskwhich includes engagement recessed partsengaged with the engagement projected parts in regions opposed to the engagement projected partsof the catch, respectively, and which is rotatably connected with the catch, each of the engagement recessed partshaving concave surfaces with a radius of curvature larger than the radius of curvature of the engagement recessed parts formed thereon. An engagement state in which the engagement projected partsare engaged with the respective engagement recessed partsis maintained by an energizing force of an energizing unit to fix the cover body section, whereas the engagement state is released by opening and closing the cover body section against the energizing force.