Patents Examined by Peter Vincent Agustin
  • Patent number: 12009017
    Abstract: In the magnetic tape, in a case where a maximum value of an absolute value of a difference between a servo band spacing obtained before storage in an environment of a temperature of 32° C. and relative humidity of 55% and a servo band spacing obtained after storage in the environment for a storage time T is set to A, and T is defined as 24 hours, 48 hours, 72 hours, 96 hours, or 120 hours, a medium life calculated by a linear function of A and a logarithm logeT of T, that are derived from a value of A and a value of the logarithm logeT of T obtained for each T is 3 years or longer. The medium life is T in a case where the A satisfies Equation 1: A=1.5?B.
    Type: Grant
    Filed: April 27, 2022
    Date of Patent: June 11, 2024
    Assignee: FUJIFILM Corporation
    Inventors: Norihito Kasada, Yusuke Kaneko
  • Patent number: 12002493
    Abstract: Provided are mechanisms that allow automatic media content layering. The systems and methods obtain a media content list that includes a plurality of different types of media content segment entries. Media content tracks are determined from the plurality of media content segment entries and are based on the type of those entries. Media content track features are determined from the media content segment entries where those features are used to adjust the media content tracks, layering of multiple media content tracks, adjusting media content segments that make up the media content tracks or other features. A media content layered object is then generated based on the media content track features and the media content tracks. An action, such as storage, may be performed on the generated media content layered object.
    Type: Grant
    Filed: February 28, 2023
    Date of Patent: June 4, 2024
    Assignee: Spooler Media, Inc.
    Inventors: Daniel Benjamin, Henry Blodget, James O. Boggs, Andrew Bowers, Kerry Donahue
  • Patent number: 11996126
    Abstract: The present embodiments relate to a heat-assisted magnetic recording (HAMR) write head with an iridium (Ir) film. The Ir film can include a body layer and a plasmon generator (PG) film comprising Iridium with a thin Ir seed layer. The Ir seed layer can be in direct contact with a dielectric (aluminum oxide). The thickness of the Ir film can be 40 nanometers or less including both a body layer and the seed layer. Incorporating Iridium as a material used for a PG can be a high surface plasmon efficient material with also being reliable under high temperature irradiation during a heat-assisted writing process.
    Type: Grant
    Filed: September 30, 2022
    Date of Patent: May 28, 2024
    Assignee: Headway Technologies, Inc.
    Inventors: Koji Shimazawa, Shengyuan Wang, Yukinori Ikegawa
  • Patent number: 11990163
    Abstract: Aspects of the present disclosure generally relate to magnetic recording heads (such as write heads of data storage devices) that include multilayer structures to facilitate targeted switching and relatively low coercivity. In one or more embodiments, a magnetic recording head includes an iron-cobalt (FeCo) layer having a crystalline structure that is a cubic lattice structure, a first crystalline layer formed of a first material, and a second crystalline layer between the first crystalline layer and the FeCo layer. The second crystalline layer is formed of a second material different from the first material, and the second crystalline layer interfaces both the FeCo layer and the first crystalline layer. The crystalline structure of the FeCo layer has a texture of <100>.
    Type: Grant
    Filed: June 30, 2022
    Date of Patent: May 21, 2024
    Assignee: Western Digital Technologies, Inc.
    Inventors: Ning Shi, Brian R. York, Susumu Okamura, Suping Song
  • Patent number: 11972104
    Abstract: A computing device with a touch screen display simultaneously displays on the touch screen display a plurality of user interface objects and at least one destination object. The computing device detects a first input by a user on a destination object displayed on the touch screen display. While continuing to detect the first input by the user on the destination object, the computing device detects a second input by the user on a first user interface object displayed on the touch screen display. In response to detecting the second input by the user on the first user interface object, the computing device performs an action on the first user interface object. The action is associated with the destination object.
    Type: Grant
    Filed: May 16, 2022
    Date of Patent: April 30, 2024
    Assignee: Apple Inc.
    Inventor: B. Michael Victor
  • Patent number: 11961541
    Abstract: A system (200) for at least one of writing data to tape media (204) and reading data from the tape media (204) includes a client application (202); and a RESTful interface (212) through which the client application (202) transmits a request to at least one of write data to the tape media (204) and read data from the tape media (204) to a REST daemon (214), the RESTful interface (212) being integrated with a SCSI interface (210). The REST daemon (214) subsequently passes the request on to a data mover (208), which opens a second RESTful interface (220) with the client application (202). The client application (202) then sends the request to the data mover (208) via the second RESTful interface (220). The data mover (208) then performs the request by moving the data between the client application (202) and the tape media (204), with the data never landing on primary storage during such movement.
    Type: Grant
    Filed: February 8, 2023
    Date of Patent: April 16, 2024
    Assignee: Quantum Corporation
    Inventors: Jeff Leuschner, Doug Burling, YingPing Lu
  • Patent number: 11955147
    Abstract: According to one embodiment, a magnetic recording/reproducing device comprises a magnetic head including an assist element and configured to perform assist recording by applying assist power to the assist element, a rotation driver configured to perform rotation drive of the magnetic recording medium, a rotation number controller, and an assist power controller. The assist recording is performed under a first condition including a first rotation number and a first assist power, or under a second condition including a second rotation number which is different from the first rotation number and a second assist power which is different from the first assist power.
    Type: Grant
    Filed: February 27, 2023
    Date of Patent: April 9, 2024
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
    Inventor: Takuya Matsumoto
  • Patent number: 11948613
    Abstract: A method includes generating a first control signal and a second control signal; blending the first control signal and the second control signal based, at least in part, on a velocity; and positioning a read/write head based on the blending of the first control signal and the second control signal.
    Type: Grant
    Filed: June 15, 2022
    Date of Patent: April 2, 2024
    Assignee: Seagate Technology LLC
    Inventors: Chan Fan Lau, Dong Wook Lee
  • Patent number: 11949363
    Abstract: Disclosed herein is a motor driver circuit including a first output terminal to be connected to a first end of a to-be-driven motor via a sense resistor, a second output terminal to be connected to a second end of the motor, an error detector that generates an error signal, an A/D converter that obtains a digital signal, a compensator that generates a voltage command value, a D/A converter that converts the voltage command value to an analog control signal, a pulse width modulator that generates a first pulse and a second pulse, and an output stage that generates a first driving voltage and a second driving voltage. During a first mode, the compensator uses the error signal obtained by the A/D converter at a negative edge timing of the first pulse, for the error signal at a positive edge timing of the second pulse.
    Type: Grant
    Filed: January 31, 2023
    Date of Patent: April 2, 2024
    Assignee: ROHM Co., LTD.
    Inventor: Hisashi Sugie
  • Patent number: 11948604
    Abstract: According to an embodiment, a magnetic disk device includes a magnetic disk, a magnetic head that accesses the magnetic disk, a motor that moves the magnetic head, a ramp, a motor driver, and a processor. When a voltage value of a power supply voltage falls below a first threshold, the motor driver starts a retract operation of retracting the magnetic head to the ramp by controlling a voltage applied to the motor. When the voltage value of the power supply voltage falls below a second threshold larger than the first threshold, the processor transmits an instruction related to applying a brake to the movement of the magnetic head to the motor driver.
    Type: Grant
    Filed: March 10, 2022
    Date of Patent: April 2, 2024
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
    Inventors: Hideki Hironaka, Kenji Itou
  • Patent number: 11948606
    Abstract: A hard disk drive including a base deck with a base member and side walls extending from the base member. The side walls include a non-metallic material and include a structure made from the non-metallic material. The structure is arranged to dampen vibration. The side walls can be formed using an additive manufacturing process.
    Type: Grant
    Filed: March 18, 2022
    Date of Patent: April 2, 2024
    Assignee: Seagate Technology LLC
    Inventors: Riyan Alex Mendonsa, Brett R. Herdendorf, Anil J. Reddy, Iraj Jabbari
  • Patent number: 11948612
    Abstract: A data storage device includes a data storage disc, an arm, a head, a rotary actuator, and an elevator. The disc has a read/write surface defining an x-y plane. The arm includes a load beam. The head is supported by the load beam, and the head is configured to interact with the read/write surface. The rotary actuator is configured to move a first portion of the arm about a first pivot axis in the x-y plane. The elevator is configured to move the arm in a z direction relative to a vertical surface and is configured to frictionally engage the vertical surface to hold the arm at a z direction position while allowing the rotary actuator to move the first portion of the arm about the first pivot axis. In another aspect, an apparatus includes a stack block, first and second clamp arm assemblies, and first and second piezoelectric actuators.
    Type: Grant
    Filed: September 12, 2022
    Date of Patent: April 2, 2024
    Assignee: Seagate Technology LLC
    Inventors: Riyan Alex Mendonsa, Brett R Herdendorf, Krishnan Subramanian
  • Patent number: 11942122
    Abstract: A method of determining radial position of a magnetic head that includes a first read sensor and a second read sensor includes: with the first read sensor, detecting a servo spiral formed on a disk; with the second read sensor, detecting the servo spiral; measuring a time interval between when the servo spiral is detected by the first read sensor and when the servo spiral is detected by the second read sensor; and based on the time interval, determining a radial position of the magnetic head relative to the disk.
    Type: Grant
    Filed: January 17, 2023
    Date of Patent: March 26, 2024
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
    Inventors: Gary W. Calfee, Gabor Szita, Jiangang Liang
  • Patent number: 11935571
    Abstract: A method for writing repeatable run-out (RRO) data, to surfaces of a rotating magnetic storage medium in a storage device having two read channels, includes detecting, with a first head, using a first read channel, a servo sync mark (SSM) on a first track on a first surface, establishing a recurring servo-gating signal at a successive fixed interval from the SSM, detecting, with the first head, servo signals from the first track on occurrence of the recurring servo-gating signal, processing the servo signals from the first track, to generate first positioning signals for positioning the first head relative to the first track, following a similar procedure with a second read channel having a second head to generate second positioning signals for the second read head, and writing first and second RRO data to servo wedges of the first and second tracks according to the respective positioning signals.
    Type: Grant
    Filed: December 15, 2022
    Date of Patent: March 19, 2024
    Assignee: Marvell Asia Pte Ltd
    Inventor: Supaket Katchmart
  • Patent number: 11935563
    Abstract: The present disclosure generally relates to a tape drive. The tape drive comprises a first tape head and a second tape head linearly aligned with one another, where the first tape head and the second tape head are configured to concurrently operate. The first tape head and the second tape head each comprise a plurality of write transducers, a plurality of read transducers, and a plurality of servo transducers. The tape drive further comprises a first actuator coupled to the first tape head and a second actuator coupled to the second tape head. The first and second actuators are configured to independently tilt and move the first and second tape heads, respectively. Tilting and moving the first and second tape heads individually enables the tape drive to compensate for non-linear tape dimensional stability effects.
    Type: Grant
    Filed: March 10, 2022
    Date of Patent: March 19, 2024
    Assignee: Western Digital Technologies, Inc.
    Inventors: Junzo Noda, Robert G. Biskeborn
  • Patent number: 11929094
    Abstract: According to an embodiment, a track includes first sectors and a second sector. When write of a second data segment to a third sector that is one of the first sectors is requested from a host, a controller acquires the second data segment from the host and stores the second data segment in the memory, and reads a data set including all first data segments and all first information pieces from the track and stores the data set in the memory. The controller acquires a second information piece of the third sector, and updates a first data segment and a first information piece read from the third sector in the data set in the memory with the second data segment and the second information piece. The controller calculates a second parity while the updated data set to the track, and writes the second parity to the second sector.
    Type: Grant
    Filed: February 28, 2023
    Date of Patent: March 12, 2024
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
    Inventors: Syosuke Maruyama, Hideo Shimokawa
  • Patent number: 11922981
    Abstract: A magnetic tape device. The angle ? formed by the axis of the element array of the magnetic head with respect to a width direction of the magnetic tape is changed during running of the magnetic tape in the magnetic tape device. In a case where predetermined storage is defined as one cycle, a maximum value of an absolute value of a difference between a servo band spacing obtained before performing the storage and a servo band spacing obtained after the storage of N cycles is defined as A, and N is set to 1, 2, 3, 4, or 5, a medium life calculated by a linear function of A and a logarithm loge T of T, that are derived from a value of A and a value of the logarithm loge T of total storage time T of the storage of N cycles is 5 years or longer.
    Type: Grant
    Filed: July 25, 2022
    Date of Patent: March 5, 2024
    Assignee: FUJIFILM Corporation
    Inventor: Norihito Kasada
  • Patent number: 11922982
    Abstract: Provided is a tape drive reel including a damping structure for reducing position error signals in a tape during operation. The tape drive reel includes a hub including a first flange and a second flange. At least one of the first flange and the second flange includes a damping layer and a single stiffener layer positioned thereon. The damping layer is positioned between the single stiffener layer and the at least one of the first flange and the second flange. The single stiffener layer is more rigid than the damping layer.
    Type: Grant
    Filed: September 14, 2022
    Date of Patent: March 5, 2024
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventor: David Harper
  • Patent number: 11915719
    Abstract: Various illustrative aspects are directed to a data storage device, comprising one or more disks; an actuator mechanism configured to position heads proximate to a recording medium of the disks; a spindle motor configured for rotating the one or more disks; and one or more processing devices comprising a servo control processor. The servo control processor is configured to receive a spindle speed error signal indicative of an error in a rotational speed of the spindle motor. The servo control processor is further configured to output an initial frequency offset signal, wherein the initial frequency offset signal is proportional to the spindle speed error signal.
    Type: Grant
    Filed: September 23, 2022
    Date of Patent: February 27, 2024
    Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
    Inventors: Yuanyuan Zhao, Yongzhi Liu, Shravankumar Bhat, Gary Herbst
  • Patent number: 11908499
    Abstract: A heat-assisted magnetic recording head includes a laser, a near-field transducer, a primary waveguide, a secondary waveguide, and a photodiode. The laser is configured to emit electromagnetic radiation. The near-field transducer is configured to focus and emit an optical near-field. The primary waveguide configured to receive the electromagnetic radiation and propagate the electromagnetic radiation toward and proximal to the near-field transducer. The secondary waveguide configured to receive a portion of the electromagnetic radiation from the primary waveguide. The photodiode configured to receive the portion of the electromagnetic radiation from the secondary waveguide and emit a signal that represents a magnitude of the electromagnetic radiation that the laser emits.
    Type: Grant
    Filed: June 29, 2022
    Date of Patent: February 20, 2024
    Inventors: Mark Gubbins, Christopher Neil Harvey, Aidan Goggin, Fadi El Hallak, Reshma Anamari Mohandas, Bryn John Howells, Scott Eugene Olson