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. 07, 1989
Filed:
Jan. 06, 1987
Applicant:
Inventors:
Keishi Nakashima, Nagaoka, JP;
Tetsuya Iwata, Nagaoka, JP;
Yasuo Tanaka, Nagaoka, JP;
Toshiaki Hashidate, Nagaoka, JP;
Assignee:
Alps Electric Co., , JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360103 ; 360125 ; 360126 ; 360119 ; 360122 ;
Abstract
A main pole exciting type magnetic head for vertical magnetic recording, including a lower slider formed of a magnetic material, a winding core formed of a magnetic material, a substrate formed of a non-magnetic material and disposed so that one end face thereof is positioned on an upper surface of the winding core, a main pole film formed on one end face of the substrate, and an upper slider formed of a magnetic material, the upper slider being opposed to the lower slider through a vertical magnetic recording medium; as well as a method of producing such magnetic head.