Birch, Stewart, Kolasch & Birch, LLP
Voice coil motors and magnetic circuits therefor
A magnet of rectangular prism or parallelepiped prism shape is disposed on a yoke having a triangle shape or a frusto-triangular shape to construct a magnetic circuit for a voice coil motor. The magnetic circuits facilitate positioning and holding of a moving coil, and the voice coil motor is improved in positioning precision of a magnetic head.
Shin-Etsu Chemical Co., Ltd.
G
G11B
inventional
Hiroyuki Keiji Daiki
Yamada Nagamiya Kato