Matches 1 - 21 out of 21


Match Document Document Title
US20150016234 PLASMONIC FUNNEL FOR FOCUSED OPTICAL DELIVERY TO A METALLIC MEDIUM  
An apparatus includes a transducer including a plasmonic funnel having first and second ends with the first end having a smaller cross-sectional area than the second end, and a first section...
US20150235663 COMPENSATION OF LASER DIODE INTRODUCED FLYING HEIGHT CHANGES  
Embodiments described herein generally relate to controlling the flying height of a slider. The methods can include transmitting radiation from a radiation source, determining a change in...
US20150199987 SYSTEM AND METHOD FOR NFT PROTRUSION COMPENSATION  
Embodiments described herein generally relate to method of maintaining the flying height of a head during a write operation. Methods described herein disclose the application of an electrical bias...
US20050232088 Reproducing method of magneto-optical storage medium, and magneto-optical storage apparatus using the method  
A magneto-optical storage apparatus and a reproducing method are provided. The magneto-optical storage apparatus is capable of using a magneto-optical storage medium provided with recording layer...
US20100067333 OBJECTIVE LENS ACTUATOR AND AN OPTICAL PICKUP  
An objective lens actuator, being suitable for a thin-sized optical pickup and a thin-sized optical disc apparatus, comprises: an objective lens for focusing a light upon a recording surface of an...
US20150262595 THERMALLY ASSISTED MAGNETIC RECORDING HEAD WITH MAIN MAGNETIC POLE APART FROM NEAR FIELD LIGHT GENERATOR  
A thermally assisted magnetic recording head has a generator end surface facing an air bearing surface (ABS), and includes: a near-field light (NF light) generator that generates an NF light on...
US20140293760 MAGNETIC DISK UNIT AND THERMALLY-ASSISTED MAGNETIC RECORDING METHOD  
The magnetic disk unit includes: a magnetic recording medium; a thermally-assisted magnetic recording head including a magnetic pole applying a recording magnetic field to the magnetic recording...
US20150162029 THERMALLY-ASSISTED MAGNETIC RECORDING HEAD  
In one embodiment, a device includes a light source, a near-field light transducer including an electroconductive scattering body configured for generating near-field light when irradiated by...
US20100315910 ENCODER CAPABLE OF COMPENSATING FOR TILT, HARD DISK DRIVE USING THE SAME, AND SERVO TRACK WRITING SYSTEM FOR THE HARD DISK DRIVE  
An encoder is capable of being used to compensate for the tilting of a movable object in an apparatus. The encoder includes a fixed scale, and a movable scale integrated with an object that moves...
US20130294207 Light Source Power Control for Heat Assisted Magnetic Recording (HAMR)  
Apparatus and method for light source power control during the writing of data to a storage medium. In accordance with various embodiments, a data recording head is provided having a magnetic...
US20120163138 Integrated Heat Assisted Magnetic Recording Head With Extended Cavity Vertical Cavity Surface Emitting Laser Diode  
An apparatus includes a transducer assembly including a waveguide and a grating structured to couple electromagnetic radiation into the waveguide; and a body including an extended cavity vertical...
US20100165801 SYSTEM, METHOD AND APPARATUS FOR INTERNAL POLARIZATION ROTATION FOR HORIZONTAL CAVITY, SURFACE EMITTING LASER BEAM FOR THERMALLY ASSISTED RECORDING IN DISK DRIVE  
A horizontal cavity, surface emitting laser (HCSEL) with internal polarization rotation is used in thermally assisted recording in hard disk drives. The desired polarization of the laser is...
US20170047089 TUNABLE CONTACT DETECTION SENSITIVITY TO DIRECTLY MEASURE CLEARANCE OF PROTRUSIONS IN MAGNETIC RECORDING HEADS  
Embodiments disclosed herein generally relate to contact at the disk by the recording head in a hard disk drive. In one embodiment, a direct current is applied to an element in a HAMR head. An...
US20160322075 STORAGE APPARATUS, CONTROLLER AND CONTROL METHOD  
A storage apparatus of an embodiment includes a magnetic disk, a head, and a controller. The head includes a writing unit that outputs a magnetic field to record write data into a recording region...
US20160254020 Adaptive HAMR Power Data Storage Device  
A data storage device may be configured with at least a heat assisted magnetic recording head that has a laser and is connected to a controller. The heat assisted magnetic recording head can be...
US20160232931 CONCURRENT MODULATION AND FRICTIONAL HEATING HEAD DISK CONTACT DETECTION  
An apparatus comprises a heat-assisted magnetic recording (HAMR) head, a sensor, and a controller. The HAMR head is configured to interact with a magnetic storage medium. The sensor is configured...
US20160232930 HEAT-ASSISTED MAGNETIC RECORDING HEAD-DISK CLEARANCE SETTING  
A magnetic recording head comprises a transducer, a heater, a writer and a laser. The transducer is configured to write to a magnetic recording medium during a write operation. The heater, writer...
US20160217811 BIO-DISC DETECTION DEVICE  
A bio-disc detection device is provided. A spindle motor is disposed on a chassis for rotating a bio-disc. The bio-disc has a detection groove disposed thereon. The chassis has an optical pick-up...
US20160099017 LAYERED SEGREGANT HEAT ASSISTED MAGNETIC RECORDING (HAMR) MEDIA  
According to one embodiment, a magnetic recording medium includes a substrate, and a magnetic recording layer structure positioned above the substrate, the magnetic recording layer structure...
US20150085628 MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING AND REPRODUCING APPARATUS  
A thermally-assisted magnetic recording medium or a microwave-assisted magnetic recording medium includes: an orientation control layer (104) that is formed on a substrate (101); an underlayer...
US20120195176 Method And Apparatus For Evaluating A Magnetic Recording Medium  
A method of evaluating a magnetic recording medium using a magnetic head having a reproduction element is disclosed The method includes the steps of (a) recording a signal in a predetermined area...

Matches 1 - 21 out of 21