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:
Apr. 10, 1990
Filed:
Mar. 17, 1989
Takahiro Miwa, Nagoya, JP;
Yuji Kiyohara, Nagoya, JP;
Hiroshi Nishikawa, Nagoya, JP;
Eiji Tanaka, Nagoya, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Abstract
Magnetic disc storage equipment for recording and reproducing signals on a magnetic disc comprising a carriage for shifting a magnetic head in a radial direction of the magnetic disc upon which is recorded signals on a respective divided sector of a track, a shifting bolt which is screwed with the carriage, a stepping motor which is interlocked with the shifting bolt and rotates the shifting bolt by a destined number of steps corresponding to a respective track gap to adjust the magnetic head at each track through the carriage, detecting means to detect signals which are read by the magnetic head at a desired track position, and shifting means to shift the magnetic head to an appropriate position based on the signals which are detected by the detecting means.