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:
Sep. 18, 2007
Filed:
Apr. 28, 2006
Masaaki Matsubara, Yonago, JP;
Kazuaki Sato, Yonago, JP;
Osamu Furuta, Yonago, JP;
Mikio Umehara, Yonago, JP;
Toshiaki Tsuzaki, Yonago, JP;
Chee Poh Chua, Yonago, JP;
Masaaki Matsubara, Yonago, JP;
Kazuaki Sato, Yonago, JP;
Osamu Furuta, Yonago, JP;
Mikio Umehara, Yonago, JP;
Toshiaki Tsuzaki, Yonago, JP;
Chee Poh Chua, Yonago, JP;
Minebea-Matsushita Motor, Tokyo, JP;
Abstract
A stepping motor for generating vibration is provided and includes a stator and a rotor. The rotor includes a shaft, a ring magnet and a rotor frame, and the rotor frame is formed into a substantial cup-shape including a disk portion having an opening at the center and also including a cylindrical portion continuously arranged at the periphery of the disk portion, and a weight portion is arranged in a portion of the rotor frame so that the gravity center of the rotor frame an be located at a position eccentric with respect to the center of the rotor frame.