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:
Apr. 03, 1984
Filed:
Jun. 25, 1981
Applicant:
Inventor:
Akira Osanai, Hachioji, JP;
Assignee:
Olympus Optical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ; G11B / ;
U.S. Cl.
CPC ...
360119 ; 360122 ; 360125 ;
Abstract
A magnetic head for vertical magnetization recording comprises a pair of magnetically coupled limbs one of which has a reduced reluctance, the other limb comprises a laminated structure comprising a magnetizable material of a greatly reduced thickness held between nonmagnetic materials. The exposed end face of the magnetizable material is disposed for abutment against a magnetic record medium to serve as a record/playback pole.