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. 17, 1988
Filed:
Feb. 24, 1986
Takao Muraoka, Yokohama, JP;
Toshihiro Sugaya, Tokyo, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A linear actuator has a flat box-like carriage movable along an access direction of a disk as a recording medium, a motor coil housed and fixed in the carriage, and a permanent magnet arrangement housed and fixed in the carriage to apply a magnetic field to the motor coil. The permanent magnet arrangement includes an E-shaped yoke member with a central portion extending along the access direction and inserted in the motor coil, a pair of outer portions arranged along two sides of the central portion, and permanent magnets arranged on opposite surfaces of the outer and central portions. The yoke member is arranged in the carriage to be parallel to the disk.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile