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:
May. 10, 2005
Filed:
Oct. 08, 2002
Masaki Kameyama, Kawasaki, JP;
Kenrou Yamamoto, Kawasaki, JP;
Masaharu Sugimoto, Kawasaki, JP;
Yoshiharu Kasamatsu, Kawasaki, JP;
Toru Yokohata, Kawasaki, JP;
Kazuhiro Watanabe, Kawasaki, JP;
Masaki Kameyama, Kawasaki, JP;
Kenrou Yamamoto, Kawasaki, JP;
Masaharu Sugimoto, Kawasaki, JP;
Yoshiharu Kasamatsu, Kawasaki, JP;
Toru Yokohata, Kawasaki, JP;
Kazuhiro Watanabe, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A protection film is layered over the trailing or outflow end surface of a slider body in a head slider for a recording medium drive. A head element is embedded within the protection film. The head element generates heat in response to the supply of an electric current. The heat causes thermal expansion of the protection film. The tip end of the head element thus excessively approaches the recording disk beyond the medium-opposed surface of the head slider. The flying height of a protection protuberance is set smaller than a flying height of the head element even when the protection film suffers from thermal expansion. The protection protuberance is allowed to trace an orbit closer to the recording medium than the orbit of the head element. The protection protuberance is allowed to collide against obstacles on the recording medium in front of the head element.