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:
Jun. 26, 2007
Filed:
Feb. 26, 2004
Hiroyuki Kubotera, Kawasaki, JP;
Hiroyuki Kubotera, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A head slider including a disk-facing surface having an inflow end and outflow end, inflow-end-side rail, negative pressure part, three extension rails, a pair of siderails, an inflow-end-side-positive-pressure part, and outflow-end-side-positive-pressure part, and an outflow end rail. The extension rails protrude towards the negative pressure part, and are formed lower than the inflow-end-side-positive-pressure part. As a result of air flowing in from the inflow end, a positive pressure (flotation force) is imparted to the inflow-end-side-positive-pressure part, and a negative pressure is imparted to the negative pressure part. The negative pressure which cancels the positive pressure acts to a suitable extent without being affected by atmospheric pressure variations, so the flotation amount is controlled to a fixed value regardless of variations of altitude (atmospheric pressure).