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. 05, 2006
Filed:
Apr. 05, 2004
Junsei Ueda, Niigata-ken, JP;
Hirohisa Ishihara, Niigata-ken, JP;
Yasuyuki Kondo, Niigata-ken, JP;
Satoshi Morikawa, Niigata-ken, JP;
Keishi Nakashima, Niigata-ken, JP;
Junsei Ueda, Niigata-ken, JP;
Hirohisa Ishihara, Niigata-ken, JP;
Yasuyuki Kondo, Niigata-ken, JP;
Satoshi Morikawa, Niigata-ken, JP;
Keishi Nakashima, Niigata-ken, JP;
Alps Electric Co., Ltd., Tokyo, JP;
Abstract
A magnetic head apparatus including a magnetic head slider having an overall front half region area (S) and a step surface area (S) and a positive-pressure generating surface area (S) both in the front half region, such that the area ratio S/S is about 0.180 to about 0.232 and the area ratio S/Sis about 0.30 to about 0.47. With this arrangement a difference in pitch angles of the magnetic head slider at the moment when it is just levitated and during levitation is large, and a variation of the pitch angle due to a pressure change is small, thereby preventing damage to a magnetic element within the magnetic head slider while achieving a stable levitation attitude of the magnetic head slider.