Magnetic disk drive
November 9, 2025. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesProcess for forming hafnia and zirconia based protective films on longitudinal magnetic recording media Disk file with liquid film head-disk interface Liquid-bearing data recording disk file with transducer carrier having rear ski pad at the head-disk interface Magnetic recording disk for contact recording Laser-based semiconductor lead measurement system Magnetic recording disk having a contiguous fullerene film and a protective overcoat Fluorinated diamond-like carbon protective coating for magnetic recording media devices Hard disk drive system having virtual contact recording Fluorinated diamond-like carbon protective coating for magnetic recording media devices Contact start/stop disk drive with minimized head-disk wear in textured landing zone InventorsAssigneeApplicationNo. 11269604 filed on 11/09/2005US Classes:360/75, Controlling the head204/192.2, Ferromagnetic360/97.02, Environmental control (e.g., air filter, temperature control)428/831, Single magnetic layer having two or more nonmagnetic underlayers (e.g., seed layers, barrier layers, etc.)356/621, Occulting a projected light beam428/835.3, Fullerene carbon428/835.2, Plasma-formed carbon overcoat360/97.01, Disk record428/834, Single magnetic layer with single specified overcoat layer360/235.1, Slider material360/235.8, Rail surface detail360/237, Three or more rails/pads360/235.2Rail materialExaminersPrimary: Tzeng, Fred F.Attorney, Agent or FirmForeign Patent References
International ClassG11B 21/02AbstractA magnetic disk drive comprises a recording medium, a slider, and an alignment device for aligning the slider with respect to the medium. No film made of liquid lubricant is disposed on the surface of the medium. The slider incorporates: a slider main body including a thin-film magnetic head element disposed near a medium facing surface; and a protection film made of a tetrahedral amorphous carbon film for protecting the medium facing surface. The alignment device makes the slider retreat from the surface of the medium when the medium is stopped, and makes the slider face toward the surface of the medium when the medium is rotated. The magnetic disk drive further comprises a distance control device for controlling the distance between the medium and the thin-film magnetic head element. |
| ||||||||||||||
