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:
Aug. 14, 2012
Filed:
Oct. 29, 2010
Shin Odajima, Tokyo, JP;
Noboru Segawa, Saitama, JP;
Yoshihide Tonogai, Saitama, JP;
Ryuta Yamawaki, Kawaguchi, JP;
Tomoaki Hoshina, Tokyo, JP;
Shin Odajima, Tokyo, JP;
Noboru Segawa, Saitama, JP;
Yoshihide Tonogai, Saitama, JP;
Ryuta Yamawaki, Kawaguchi, JP;
Tomoaki Hoshina, Tokyo, JP;
Nidec Copal Corporation, Tokyo, JP;
Abstract
A vibration actuator includes a coil that extends in a vibration direction and has a flat shape and a magnet that extends in the vibration direction and has a flat shape, so that a case can be made flat or low profile. A weight portion is supported by a shaft, so that, when a drop impact is applied, the weight portion can move along the shaft and the weight portion is not freely moved in the case. A coil spring is disposed between a spring receiving portion and a weight portion. Therefore there is no unnecessary space in the case, so that space can be saved and the vibration actuator can be made compact.