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:
Jun. 28, 1988
Filed:
May. 21, 1986
Applicant:
Inventor:
Tetsuya Iwata, Nagaoka, JP;
Assignee:
Alps Electric Co., Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360100 ; 360105 ;
Abstract
A magnetic drum apparatus has a rotatable magnetic drum, a carriage adjacent the drum movable on a guide shaft along the drum axis, a magnetic head and slider assembly supported on the carriage, and a drive motor for the drum mounted in the inner chamber of the drum. The carriage is rotatable on a guide pin in a direction away from the surface of the drum when it is moved to an axially retracted position.
Iwata, Tetsuya. (1988). Magnetic drum recording apparatus (U.S. Patent No. 4754352). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4754352
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile