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:
Feb. 28, 1984
Filed:
Jun. 28, 1982
Naohiko Toshimitsu, Saitama, JP;
Canon Kabushiki Kaisha, Saitama, JP;
Canon Denshi Kabushiki Kaisha, Saitama, JP;
Abstract
There is disclosed a magnetic head constructed with a core formed by butt-connecting a plurality of core halves, each having different magnetic flux density or magnetic permeability, and a winding wound around the core, wherein an intense magnetic field is created at the butt-connected portion. One of the core halves has a high magnetic permeability and the other has a high magnetic flux density so as to improve both the output characteristic and reproduction sensitivity of the magnetic head. Further, the core half having a higher magnetic flux density than the other is disposed at the side where a recording medium in motion leaves the head so that a satisfactory recording and erasing magnetic field may be imparted to the recording medium such as metal tape. Furthermore, the core is constructed with a combination of high hardness permalloy having different magnetic flux or magnetic permeability, or a combination of such high hardness permalley and sendust so as to reduce manufacturing cost of the magnetic head.