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:
Jan. 31, 2006
Filed:
Feb. 25, 2003
Eiji Nakanishi, Minamiashigara, JP;
Yukihiro Isono, Hadano, JP;
Shigeru Tadokoro, Odawara, JP;
Sunao Yonekawa, Odawara, JP;
Tetsuya Matsusaki, Odawara, JP;
Masao Matsushita, Oiso, JP;
Eiji Nakanishi, Minamiashigara, JP;
Yukihiro Isono, Hadano, JP;
Shigeru Tadokoro, Odawara, JP;
Sunao Yonekawa, Odawara, JP;
Tetsuya Matsusaki, Odawara, JP;
Masao Matsushita, Oiso, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Protrusion of head elements to an air bearing surface is effectively reduced and their contact with a recording medium is thereby prevented by forming a level gap (concave) of about 3 nm in a multilayered protective film on the air bearing surface in a part matching an inductive write thin film head in a recording/reproducing separated type magnetic head and thereby offsetting protrusion of the head elements to the air bearing surface due to thermal deformation of the heads.