Patents Examined by Brian E. Miller
  • Patent number: 11715490
    Abstract: A trace gimbal is described herein. In some embodiments, the trace gimbal includes outer struts including a front outrigger at a distal end of the trace gimbal and a rear outrigger at a proximal end of the trace gimbal. The front outrigger includes a distal front outrigger and a proximal front outrigger, and the rear outrigger includes a distal rear outrigger and a proximal rear outrigger. The trace gimbal further includes a middle strut extending in a width direction of the trace gimbal and adjoining the proximal front outrigger to the rear outrigger, and an inner strut connecting the middle strut to a slider tongue. The inner strut and the middle strut adjoin the outer gimbal struts to the slider tongue.
    Type: Grant
    Filed: March 24, 2022
    Date of Patent: August 1, 2023
    Assignee: Magnecomp Corporation
    Inventors: Kuen Chee Ee, Ekaratch Pankaew
  • Patent number: 11705162
    Abstract: Described are clamps useful for temporarily holding a slider of a hard disk drive in a test socket for dynamic electrical testing of the slider, as well as related assemblies that include the test socket, a head-gimbal-assembly, a testing assembly, and related methods of use.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: July 18, 2023
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Sungkwon Choi, Stefan A. Weissner, Razman Zambri
  • Patent number: 11688421
    Abstract: A trace gimbal is described herein. In some embodiments, the trace gimbal includes outer struts including a front outrigger at a distal end of the trace gimbal and a rear outrigger at a proximal end of the trace gimbal. The front outrigger includes a distal front outrigger and a proximal front outrigger, and the rear outrigger includes a distal rear outrigger and a proximal rear outrigger. The trace gimbal further includes a middle strut extending in a width direction of the trace gimbal and adjoining the proximal front outrigger to the rear outrigger, and an inner strut connecting the middle strut to a slider tongue. The inner strut includes a slot, and the inner strut and the middle strut adjoin the outer gimbal struts to the slider tongue.
    Type: Grant
    Filed: February 16, 2022
    Date of Patent: June 27, 2023
    Assignee: Magnecomp Corporation
    Inventors: David Glaess, Kuen Chee Ee
  • Patent number: 11688428
    Abstract: An apparatus includes a housing that is configured to receive and retain a plurality of removable storage media, and a shuffler that is positioned at least partially within the housing. The housing includes an open first end, an opposed, closed second end, a first channel that receives and retains a first subset of the plurality of removable storage media, and a second channel that receives and retains a second subset of the plurality of removable storage media. The first channel and the second channel are shaped to receive and retain the plurality of removable storage media in respective single-file rows via the open first end. The shuffler is movable between a resting position and a second position wherein the shuffler has been moved away from the resting position.
    Type: Grant
    Filed: September 29, 2022
    Date of Patent: June 27, 2023
    Inventors: Jesse Baker, William A. Yearsley
  • Patent number: 11682419
    Abstract: A magnetic recording head assembly is provided and is configured to read from and write to a magnetic media. The head assembly includes a first module having a first media facing surface (MFS), a first closure, and a first recessed portion disposed between the first MFS and the first closure. The first MFS includes AlTiC. A second module is provided having a second MFS, a second closure, and a second recessed portion disposed between the second MFS and the second closure. The second MFS includes AlTiC. An overcoat disposed within the first and second recessed portions includes an adhesive layer and a protective layer disposed within the first and second recessed portion.
    Type: Grant
    Filed: August 13, 2021
    Date of Patent: June 20, 2023
    Assignee: Western Digital Technologies, Inc.
    Inventors: Kenji Kuroki, Oscar Ruiz, Cherngye Hwang, Eduardo Torres Mireles
  • Patent number: 11682426
    Abstract: An archival data storage system library includes magnetic-recording disk media, a storage enclosure in which the media are housed, data storage devices (DSDs) configured to write to and read from the media, an automated disk handling mechanism configured to transfer at least some of the media between the storage enclosure and the DSD, and a hermetic enclosure containing the foregoing components. The storage system may further include a gas circulation system for filtering contaminants from the hermetic enclosure. Such a storage system may be implemented as a rack-mountable unit, or as an entire cleanroom facility, as well as in intermediate form factors between those. In the context of a cleanroom storage system, the system may further include an automated disk handling shuttle to receive the media from the disk handling mechanism and an automated disk loading mechanism for accessing the media from the shuttle for installing into the DSD.
    Type: Grant
    Filed: August 13, 2021
    Date of Patent: June 20, 2023
    Assignee: Western Digital Technologies, Inc.
    Inventor: Toshiki Hirano
  • Patent number: 11682418
    Abstract: The present disclosure generally relates to data storage devices, and more specifically, to a magnetic media drive employing a magnetic recording head. The head includes a main pole at a media facing surface (MFS), a trailing shield at the MFS, and a heavy metal layer disposed between the main pole and the trailing shield at the MFS. Spin-orbit torque (SOT) is generated from the heavy metal layer and transferred to a surface of the main pole as a current passes through the heavy metal layer in a cross-track direction. The SOT executes a torque on the surface magnetization of the main pole, which reduces the magnetic flux shunting from the main pole to the trailing shield. With the reduced magnetic flux shunting from the main pole to the trailing shield, write-ability is improved.
    Type: Grant
    Filed: July 19, 2022
    Date of Patent: June 20, 2023
    Assignee: Western Digital Technologies, Inc.
    Inventors: Suping Song, Zhanjie Li, Michael Kuok San Ho, Quang Le, Alexander M. Zeltser
  • Patent number: 11670328
    Abstract: A disk-drive suspension includes a load beam, a flexure laid on top of the load beam, a first terminal provided on the flexure, and a first bump arranged on a top surface of the first terminal. The first terminal includes a narrow part having a first width in a first direction and including a center of the first terminal, and a wide part having a second width in the first direction greater than the first width. The wide part and the narrow part are arranged in a second direction intersecting the first direction. The first bump has, at the center, a first height from a bottom surface of the first terminal. The first height is greater than the first width.
    Type: Grant
    Filed: May 3, 2022
    Date of Patent: June 6, 2023
    Assignee: NHK SPRING CO., LTD.
    Inventors: Kai Chung Ng, Wen Tao, Zhen Zhou Qi, Jun Zeng
  • Patent number: 11664047
    Abstract: A hard disk drive includes multiple actuator assemblies, each of which includes a head-stack assembly (HSA) including an end-arm to which a single head-gimbal assembly (HGA) is coupled, where this end-arm is configured with a notch along one side and a triangular or quadrilateral-shaped through-hole at a root-side of the end-arm, and where the HSA further includes a plurality of other end- and inner-arms to each of which two HGAs are coupled and none of which have a through-hole near their root. The single-HGA end-arm may be further configured with an outer damper having a through-hole coincident with the end-arm through-hole, such that the through-hole of the end-arm is not covered by this damper, and an inner damper having no through-hole, such that the through-hole of the end-arm is covered by this damper. Gains are thereby better matched across all HGAs for problematic arm and system modes.
    Type: Grant
    Filed: May 11, 2022
    Date of Patent: May 30, 2023
    Assignee: Western Digital Technologies, Inc.
    Inventors: Manoj Keshavan, Siddhesh Vivek Sakhalkar, Hitoshi Shindo
  • Patent number: 11664048
    Abstract: An apparatus, in accordance with one approach, includes a receiving area configured to receive a plurality of tape spool pairs. A drive mechanism is configured to selectively drive the tape spool pairs. A magnetic head configured to perform data operations on magnetic recording tapes of the tape spool pairs is also present. A positioning mechanism is configured to selectively align the magnetic head to a selected one of the tape spool pairs. An engagement mechanism is configured to create a relative movement between the magnetic head and the magnetic recording tape of the selected tape spool pair for engaging the magnetic recording tape with the magnetic head. A controller is configured to instruct the drive mechanism to drive the selected tape spool pair during performance of data operations on the selected tape spool pair, and to instruct the drive mechanism to drive a second tape spool pair for performing a second operation on the second tape spool pair while the data operations are being performed.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: May 30, 2023
    Assignee: International Business Machines Corporation
    Inventors: Robert Biskeborn, Hoodin Hamidi, Gary Decad, Edwin Ralph Childers
  • Patent number: 11657849
    Abstract: An automated tape library (10) includes a library housing (12) that is substantially rectangular box-shaped, including a first housing side (12A), a second housing side (12B), a housing rear (12C), a housing top (12D), a housing bottom (12E), and a housing front (12F). The library housing (12) defines a library width (10W) that is less than or equal to approximately 550 millimeters and a library depth (10D) that is at least approximately 1000 millimeters. The automated tape library (10) can further include a front door (16) that is movably coupled to the housing front (12F) to move between a closed configuration (11A) and an open configuration (11B); wherein the library housing (12) defines a library interior (14); and wherein full access to the library interior (14) is only provided through the front door (16) when the front door (16) has been moved to the open configuration (11B). The automated tape library (10) can also include at least one tape drive (20) that is coupled to the front door (16).
    Type: Grant
    Filed: June 13, 2022
    Date of Patent: May 23, 2023
    Assignee: QUANTUM CORPORATION
    Inventors: Christian Allen Todd, Jesse Baker, Scott M. Rockwell, William A. Yearsley
  • Patent number: 11657854
    Abstract: A mover replacement system for removing a media mover, movable between an operating position and a removable position, from within a media library includes a service tray and a capture assembly. The service tray is removably positionable within the library housing. The service tray includes a tray body. The capture assembly is configured to enable the service tray to securely receive and releasably retain the media mover when the media mover is in the removable position. The capture assembly includes at least one locking mechanism that is movable relative to the tray body between a retracted position when the at least one locking mechanism is positioned not to engage the media mover, and a fully extended position when the at least one locking mechanism is positioned to retain the media mover relative to the tray body when the media mover is in the removable position.
    Type: Grant
    Filed: January 6, 2022
    Date of Patent: May 23, 2023
    Assignee: QUANTUM CORPORATION
    Inventor: Christian Allen Todd
  • Patent number: 11657835
    Abstract: A magnetic head includes a main pole configured to serve as a first electrode, an upper pole containing a trailing magnetic shield configured to a serve as a second electrode, and an electrically conductive portion located in a trailing gap between the main pole and the trailing magnetic shield. The electrically conductive portion is not part of a spin torque oscillator stack, and the electrically conductive portion includes at least one electrically conductive, non-magnetic material layer. The main pole and the trailing magnetic shield are electrically shorted by the electrically conductive portion across the trailing gap between the main pole and the trailing magnetic shield such that an electrically conductive path is present between the main pole and the trailing magnetic shield through the electrically conductive portion.
    Type: Grant
    Filed: April 14, 2022
    Date of Patent: May 23, 2023
    Assignee: Western Digital Technologies, Inc.
    Inventors: Zhigang Bai, Youfeng Zheng, Venkatesh Chembrolu, Supradeep Narayana, Yaguang Wei, Suping Song, Terence T. Lam, Kuok San Ho, Changqing Shi, Lijie Guan, Jian-Gang Zhu
  • Patent number: 11657839
    Abstract: A flexure includes a metal base, a base insulation layer formed on the metal base, a terminal formed on the base insulation layer, a conductor portion electrically conductive to the terminal and an detouring extending portion formed on the conductor portion. The conductor portion includes a conductor and a cover layer covering the conductor. A conductive adhesive is supplied to the terminal. The detouring extending portion is formed in a longitudinal middle of the conductor portion and extends from the side surface of the conductor portion in a direction intersecting the length direction of the conductor portion along the base insulation layer.
    Type: Grant
    Filed: June 14, 2022
    Date of Patent: May 23, 2023
    Assignee: NHK SPRING CO., LTD.
    Inventors: Takashi Horiuchi, Takahiro Namura, Yuto Sudo, Yukie Yamada
  • Patent number: 11651793
    Abstract: A disk hub is configured to retain a magnetic recording medium including an annulus shape and a layer configured for magnetic recording. The disk hub includes a base plate portion for supporting an inner diameter area of the magnetic recording medium and a stem portion on the base plate portion. The stem portion includes a frustoconical portion on the base plate portion and a top portion on the frustoconical portion. At least the top portion of the stem portion includes a material with a hardness less than that of stainless steel. The disk hub can reduce surface damages (e.g., scratches) on the media surface during media testing.
    Type: Grant
    Filed: January 5, 2022
    Date of Patent: May 16, 2023
    Assignee: Western Digital Technologies, Inc.
    Inventors: Lingyun Li, Ao Fan, Cheng Zhang
  • Patent number: 11651783
    Abstract: The present disclosure relates to a magnetic recording head having dual layer leading shield or leading edge shield (LES). The layer closest to the main pole of the magnetic recording head has a shallow flare to enhance shape anisotropy while the layer farthest away from the main pole has a steep flare to initiate reversal of the direction of magnetization for the layer during the initialization. The layer closest to the main pole will retain a direction of magnetization that matches the direction of magnetization of the initialization direction. Both layers are sufficiently thick to ensure a two domain state that is favorable from an energy balance point of view.
    Type: Grant
    Filed: February 22, 2022
    Date of Patent: May 16, 2023
    Assignee: Western Digital Technologies, Inc.
    Inventor: Alexander Goncharov
  • Patent number: 11651785
    Abstract: Methods are described for forming a mounting surface on a slider body. In one method, an adhesion layer can be deposited on a top surface of a slider body. A first photolithography cycle deposits a first metal layer having a first thickness of at least 8 ?m. A second photolithography cycle deposits a second metal layer having a second thickness of at least 8 ?m over the first metal layer. The first and second layer form a mounting support on the top surface. In another method, the top surface is etched to form a mounting support.
    Type: Grant
    Filed: April 25, 2022
    Date of Patent: May 16, 2023
    Assignee: Seagate Technology LLC
    Inventors: Joseph M. Stephan, Robert Aaron Newman, Lars H. Ahlen, Aaron Michael Collins
  • Patent number: 11646055
    Abstract: A hard disk drive comprises a carriage assembly that comprises a carriage-arm tip with a swaging hole centered about a swaging axis. A first head-gimbal assembly comprises a tension baseplate on a first side of the carriage-arm tip with a tension swage boss located within the swaging hole. A second head-gimbal assembly comprises a compression baseplate on a second side of the carriage-arm tip with a compression swage boss located with the swaging hole. The tension swage boss comprises an uppercut that extends radially outward, away from the swaging axis, from a first backbore diameter to a second backbore diameter and a tension-boss undercut that extends radially outward, away from the swaging axis, from a tension-boss outer diameter to a first undercut diameter. The compression swage boss comprises a compression-boss undercut that extends radially outward, away from the swaging axis, from a compression-boss outer diameter to a second undercut diameter.
    Type: Grant
    Filed: June 17, 2022
    Date of Patent: May 9, 2023
    Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
    Inventors: Hiroyasu Tsuchida, Haruhide Takahashi, Yoshinobu Noguchi, Takeji Sumiya
  • Patent number: 11636873
    Abstract: A magnetic recording writer is disclosed. In some embodiments, the writer includes a main pole having a front portion and a back portion, a gap layer surround the main pole at the ABS, and a shield structure. The front portion includes a pole tip at an ABS plane, a pole tip thickness in a down-track direction, and curved sidewalls on each side of a center plane that is orthogonal to the ABS and bisects the main pole. The back portion includes first flared sidewalls extending from the curved sidewalls at an angle between 0 and 25 degrees relative to planes parallel to the center plane. The shield structure includes sidewalls having a sidewall portion facing the main pole and formed substantially conformal to the curved sidewalls up to a height of about 30-200 nm where the sidewall portions no longer follow the shape of the main pole.
    Type: Grant
    Filed: September 10, 2021
    Date of Patent: April 25, 2023
    Assignee: Headway Technologies, Inc.
    Inventors: Ying Liu, Yuhui Tang, Jiun-Ting Lee, Yue Liu
  • Patent number: 11630168
    Abstract: In one aspect, a linear sensor includes at least one magnetoresistance element that includes a first spin valve and a second spin valve positioned on the first spin valve. The first spin valve includes a first set of reference layers having a magnetization direction in a first direction and a first set of free layers having a magnetization direction in a second direction orthogonal to the first direction. The second spin valve includes a second set of reference layers having a magnetization direction in the first direction and a second set of free layers having a magnetization direction in a third direction orthogonal to the first direction and antiparallel to the second direction. The first direction is neither parallel nor antiparallel to a direction of an expected magnetic field.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: April 18, 2023
    Assignee: Allegro MicroSystems, LLC
    Inventors: Rémy Lassalle-Balier, Maxime Rioult