| Patent Number |
Title Of Patent |
Date Issued |
| 7369341 |
Head flying height measuring apparatus in magnetic storage device |
May 6, 2008 |
| Firstly, in order to check the noise level of a device, DC erasure is applied to a magnetic recording medium and the magnetic recording medium is read. Then, a test signal including a first order component and a third order harmonic frequency is written into the magnetic recording me |
| 7365931 |
Information-recording/reproducing apparatus and method of detecting the gap between a head and a |
April 29, 2008 |
| A method of detecting a gap between a head and a recording medium in an information-recording/reproducing apparatus that uses the head to record and reproduce information in and from the recording medium. In the method, the gap between the head and the recording medium is alternately |
| 7057385 |
Method of inspecting magnetic recording medium based on contact duration time |
June 6, 2006 |
| A magnetic recording medium inspection method detects small protrusions that constitute defects on the surface of a magnetic recording medium. The method includes flying a glide inspection head at a predetermined height over the surface of the moving magnetic recording medium; detect |
| 6985315 |
Magnetic disk evaluation apparatus |
January 10, 2006 |
| A magnetic disk evaluation apparatus includes an evaluation head for evaluating a magnetic disk, and a support member for supporting the evaluation head. The support member supports the evaluation head in a state where a flying surface of the evaluation head and a surface of a magnet |
| 6943969 |
Method of detecting protrusion on recording medium and detecting apparatus therefor |
September 13, 2005 |
| An acoustic emission sensor is mounted on a flying slider opposed to a rotating recording medium, for example. The acoustic emission sensor outputs a detection signal in response to the sound of collision. When a protrusion exists on the recording medium, the flying slider is expected |
| 6903901 |
Head slider having protector protuberance in front of head element |
June 7, 2005 |
| A protector protuberance is formed on a head slider incorporated in a recording medium drive such as a hard disk drive. The protector protuberance is allowed to collide against a contamination on a recording medium in front of a head element mounted on the head slider. The head eleme |
| 6891699 |
Recording medium drive including head slider having protection protuberance standing on air bear |
May 10, 2005 |
| 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 t |
| 6552872 |
Magnetic disk drive capable of preventing stiction of magnetic head |
April 22, 2003 |
| A magnetic disk drive includes a magnetic recording medium rotatably mounted in a housing, a magnetic head slider having an electromagnetic transducer for reading/writing data from/to the magnetic recording medium, and an actuator for moving the magnetic head slider across tracks of the |
| 6396661 |
Magnetic disk drive capable of preventing stiction of magnetic head |
May 28, 2002 |
| A magnetic disk drive includes a magnetic recording medium rotatably mounted in a housing, a magnetic head slider having an electromagnetic transducer for reading/writing data from/to the magnetic recording medium, and an actuator for moving the magnetic head slider across tracks of the |
| 6246538 |
Magnetic disk drive with a floating head slider having projections arranged to float at a greate |
June 12, 2001 |
| A head slider is composed of a substrate having a transducer on its outflow end, a rail plane formed on a surface near both sides of the substrate facing a magnetic disk. The head slider further includes a plurality of projection elements formed on the rail plane. When the slider is floa |
| 6243233 |
Magnetic head slider and magnetic disk apparatus having the magnetic head slider |
June 5, 2001 |
| A magnetic head slider has a plurality of rail planes to generate a floating force by using an air flow passing through a region between a group of the rail planes and a magnetic disk rotated at a constant rotating speed, and the slider floats up into the air according to the floatin |
| 6120694 |
Head slider with projecting arranged on rails thereof |
September 19, 2000 |
| A head slider is composed of a substrate having a transducer on its outflow end, a rail plane formed on a surface near both sides of the substrate facing a magnetic disk, and the first projection arranged on the rail planes near an inflow end of the substrate, and the second and third |
| 6072663 |
Magnetic head slider with elongated projections for reducing stiction and dust buildup |
June 6, 2000 |
| A magnetic head slider having an air inlet end surface and an air outlet end surface, including a pair of rails formed on a disk opposing surface opposed to a magnetic disk, each of the rails having a flat air bearing surface for generating a flying force during rotation of the magnetic |
| 6040958 |
Magnetic head slider and magnetic disk apparatus having the magnetic head slider |
March 21, 2000 |
| A magnetic head slider has a plurality of rail planes to generate a floating force by using an air flow passing through a region between a group of the rail planes and a magnetic disk rotated at a constant rotating speed, and the slider floats up into the air according to the floatin |
| 5841608 |
Head slider with projections arranged on rails thereof |
November 24, 1998 |
| The head slider has a substrate with a transducer on an outflow end of the substrate and rail planes, facing a disk, formed along sides and a front of the substrate. In addition, projections extend from the rail planes toward the disk. Two projections are near the outflow end of the subs |
