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:
Dec. 09, 2003
Filed:
Dec. 15, 1999
Applicant:
Inventors:
Hideyuki Kurita, Kanuma, JP;
Masanao Watanabe, Kanuma, JP;
Assignee:
Sony Chemicals Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/48 ; G11B 5/127 ;
U.S. Cl.
CPC ...
G11B 5/48 ; G11B 5/127 ;
Abstract
(a) A method of manufacturing a magnetic head suspension includes a polyimide precursor layer that is formed over a springy material layer , (b) a metal layer for lines is formed over the polyimide precursor layer , (c) the metal layer is patterned by the subtractive process to produce lines , (d) the polyimide precursor layer is patterned by a photolithographic technique to give the configuration corresponding to a polyimide insulating base layer , (e) the patterned polyimide precursor layer is imidated to produce the polyimide insulating base layer , and (f) a cover coat layer is formed over the lines