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:
May. 05, 2009
Filed:
Feb. 25, 2005
Shoichi Kaneda, Tokyo, JP;
Minoru Ueda, Tokyo, JP;
Shoichi Kaneda, Tokyo, JP;
Minoru Ueda, Tokyo, JP;
Namiki Seimitsu Houseki Kabushiki, Tokyo, JP;
Abstract
A multifunction vibration actuator is disclosed, which includes a housing () integrally formed with a first house part () with an elliptic wall (), a second house part () having a cylindrical wall () with a diameter corresponding to the first house part () at the center of the ellipse, and both bottom walls () and () of the first housing part (). The actuator also includes an elliptic diaphragm () with an annular voice coil () installed on the inner surface thereof, a circular magnetic circuit part (), and a disk type suspension (). The elliptic diaphragm () is tightly installed in the wall of the first house part (), and the circular magnetic circuit part () is installed in the cylinder of the second house part () with the suspension ().