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:
Oct. 12, 1999
Filed:
Oct. 29, 1996
Applicant:
Inventors:
Sadao Shimura, Yamagata, JP;
Tadashi Adachi, Yamagata, JP;
Assignee:
Mitsumi Electric Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
360137 ; 360 31 ;
Abstract
A rotary magnetic head inspection method for a double azimuth head where two magnetic heads of different azimuthal angles are arranged on a head base, includes the steps of: recording an inspection signal on a running tape by a magnetic head; reproducing the inspection signal by the magnetic head for checking the level of the reproducing signal; and reproducing the inspection signal by the other magnetic head for checking whether the magnetic head is correctly assembled onto a head base through judgement of the reproducing signal.