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:
Jul. 15, 2003
Filed:
Apr. 14, 1999
Applicant:
Inventors:
Hirohisa Ishihara, Niigata-ken, JP;
Takao Soma, Aichi-ken, JP;
Tadashi Otagiri, Aichi-ken, JP;
Soichiro Matsuzawa, Mie-ken, JP;
Assignee:
Alps Electric Co., Ltd, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 5/127 ; H04R 3/100 ;
U.S. Cl.
CPC ...
G11B 5/127 ; H04R 3/100 ;
Abstract
The use of a Nd-YAG laser or excimer laser enables easy formation of protrusions on a protecting layer and a portion of an opposite surface near the trailing side end thereof and a thin film element. It is thus possible to avoid direct contact between the thin film element and the disk surface, and thus prevent damage to the thin film element and wearing thereof even if a slider and the disk surface repeatedly slide on each other.
Ishihara, Hirohisa. (2003). Method of producing magnetic head (U.S. Patent No. 6591478). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6591478
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile