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:
Jun. 10, 2003
Filed:
Feb. 05, 2001
Yasuyuki Fukushima, Goka-machi, JP;
Masaki Niwa, Kashiwa, JP;
Wacom Co., Ltd., Saitama-ken, JP;
Abstract
A device for detecting a rotation angle is provided. The device include a first coil, a second coil, and a twist prevention mechanism. The first coil detects a coordinate value. The second coil detects the rotation angle. The second coil includes signal lines extending therefrom. The second coil is rotatable around a center of the first coil without rotating the first coil. The twist prevention mechanism prevents the signal lines from twisting. The device is preferably included in a pack-shaped pointer that operates on a tablet. The pointer and tablet preferably utilize an electromagnetic induction principle to detect the coordinate value and the rotation angle.