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:
Aug. 08, 2006
Filed:
Apr. 13, 2004
Nobuya Oyama, Tokyo, JP;
Norikazu Ota, Tokyo, JP;
Soji Koide, Tokyo, JP;
Tetsuro Sasaki, Tokyo, JP;
Osamu Fukuroi, Hong Kong, CN;
Nobuya Oyama, Tokyo, JP;
Norikazu Ota, Tokyo, JP;
Soji Koide, Tokyo, JP;
Tetsuro Sasaki, Tokyo, JP;
Osamu Fukuroi, Hong Kong, CN;
TDK Corporation, Tokyo, JP;
SAE Magnetics (H.K.) Ltd., Shatin, CN;
Abstract
The heaters in the respective thin-film magnetic head in the bar are electrically connected to its neighbors, and a variable resistor is connected to each of the heaters in parallel. The resistance of each of the variable resistors is varied depending on the amount that the medium-opposing surface (ABS) of the thin-film magnetic head is to project. Also, the medium-opposing surface of the thin-film magnetic head in the magnetic head bar is polished while energizing all the heaters by the same power supply.