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:
Mar. 18, 1986
Filed:
Dec. 10, 1982
Kazuhiro Sato, Sagamihara, JP;
Katsuhiko Oguri, Fujisawa, JP;
Victor Company of Japan, Limited, Kanagawa, JP;
Abstract
A Hall effect magnetic head performs predetermined operations such as recording, reproducing and erasing of data on a recording medium which is capable of magnetically recording data therein. The magnetic head includes first and second magnetic members which define therebetween a front gap which faces the recording medium, a space in which a magnetic field developing means is disposed, and a rear gap in which a Hall element is disposed. The Hall element is applied with a bias magnetic field developed by the magnetic field developing means and by a signal magnetic field developed by the recording medium. The Hall element comprises a vertically magnetizable thin layer or film and is caused to output as a Hall voltage a signal contained in the signal magnetic field. The front and rear gaps are adequately dimensioned to increase the Hall voltage. The magnetic head may include second magnetic field developing means for preventing the bias magnetic field from influencing the recording medium.