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. 09, 2004
Filed:
May. 21, 2001
Applicant:
Inventors:
Yoshihiro Nishiyama, Niigata-ken, JP;
Yasuo Hayakawa, Niigata-ken, JP;
Assignee:
Alps Electric Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/39 ;
U.S. Cl.
CPC ...
G11B 5/39 ;
Abstract
A thin film magnetic head includes a lower gap layer and/or an upper gap layer made of an AlSiO film having a Si content of 2 at % to 9 at % of the total or an AlSiON film further having a N content of 2 at % to 10 at %. Therefore, the insulation performance, developer resistance, smoothness and heat radiation property of the gap layer can be improved as compared with a gap layer made of Al O .
Nishiyama, Yoshihiro. (2004). Thin film magnetic head using al-si-o insulating material and method of manufacturing the same (U.S. Patent No. 6704172). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6704172
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile