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. 11, 2005
Filed:
Aug. 27, 2003
Hidekazu Kohira, Odawara, JP;
Masaaki Matsumoto, Fujisawa, JP;
Kiyoshi Hashimoto, Odawara, JP;
Masayoshi Endo, Odawara, JP;
Akio Takakura, Odawara, JP;
Yoshihori Takeuohi, Ishioka, JP;
Shinsuke Higuchi, Odawara, JP;
Akira Iida, Odawara, JP;
Hidekazu Kohira, Odawara, JP;
Masaaki Matsumoto, Fujisawa, JP;
Kiyoshi Hashimoto, Odawara, JP;
Masayoshi Endo, Odawara, JP;
Akio Takakura, Odawara, JP;
Yoshihori Takeuohi, Ishioka, JP;
Shinsuke Higuchi, Odawara, JP;
Akira Iida, Odawara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A magnetic head slider, for sliding on a magnetic disk, which comprises a leading edge, a trailing edge, an air bearing surface having a front step bearing of submicron depth made from the leading edge, and a rail surface made from the front step bearing. A negative pressure recess, which is more profound than the front step bearing, is made from the rail surface, and a side step bearing with a depth identical to that of the front step bearing is made from the rail surface, wherein the ratio of depth R of the recess and depth δs of the front step bearing is R/δs≧5.