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.

Date of Patent:
Apr. 12, 1994

Filed:

Apr. 17, 1992
Applicant:
Inventors:

Masaru Higashionji, Katano, JP;

Hideaki Mukae, Sanda, JP;

Akio Murata, Ibaraki, JP;

Takaaki Maegawa, Neyagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360137 ; 360107 ;
Abstract

A magnetic head device includes a rotary cylinder and a magnetic head having one end fixed to an inner portion of one surface of the rotary cylinder such that the magnetic head extends from the inner portion toward the outer circumference of the rotary cylinder in alignment with a radius thereof. The head tip is provided on another end of magnetic head. A laser beam is impinged on the base plate at a portion within a range from 2 mm to (5.times.T1/2)mm from the outer edge of head tip where T is a thickness of the bass plate. The portion on which the beam impinged is heated and melts causing the base plate to incline in a vertical direction which is parallel to an axis the rotary cylinder. Thus, the head tip is positioned at a required horizontal level which is perpendicular to the axis of the rotary cylinder.


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