Patents Examined by William J. Klimowicz
  • Patent number: 10121502
    Abstract: An apparatus according to one embodiment includes an array of transducer structures arranged along a tape bearing surface of a common module. Each transducer structure includes a lower shield, an upper shield above the lower shield, a current-perpendicular-to-plane sensor between the upper and lower shields, at least one lead, and an insulating layer between the at least one lead and the shield closest thereto. The at least one lead is selected from a group including an upper electrical lead between the sensor and the upper shield, and a lower electrical lead between the sensor and the lower shield. The at least one lead is in electrical communication with the sensor. A width of one or more of the at least one lead in a cross track direction is about equal to a width of the sensor.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: November 6, 2018
    Assignee: International Business Machines Corporation
    Inventors: Robert G. Biskeborn, Robert E. Fontana, Jr., Jason Liang, Calvin S. Lo
  • Patent number: 10115426
    Abstract: A method is provided for judging whether a double-sided optical disc is placed reversely. Firstly, the disc is loaded. Then, a first optical pickup head emits a first laser beam to a first specified area of the disc and receives a first reflected laser beam. A second optical pickup head emits a second laser beam to a second specified area of the disc and receives a second reflected laser beam. If the first reflected laser beam generates an alternate brightness and darkness change and the second reflected laser beam does not generate the alternate brightness and darkness change, the disc is not placed reversely. If the first reflected laser beam does not generate the alternate brightness and darkness change and the second reflected laser beam generates the alternate brightness and darkness change, the disc is placed reversely.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: October 30, 2018
    Assignee: LITE-ON TECHNOLOGY CORPORATION
    Inventors: Yu-Ta Ho, Chou-Chien Chien
  • Patent number: 10115429
    Abstract: A disk magazine according to the present disclosure is a disk magazine equipped with a resin-made disk tray that houses a plurality of disks in a stacked state and a tray holder that houses the disk tray. An opening is provided on one side surface of the tray holder so that the disk tray can be inserted into and extracted from the opening. A sliding member is mounted to a front wall of the disk tray so as to protrude more upward than a top surface of the disk tray. The front wall serves as a side where the disk tray is inserted into the opening. The sliding member is constituted of a resin material different from a resin material that constitutes the disk tray.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: October 30, 2018
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yoichi Yamamoto, Norikatsu Yoshida, Tomoaki Namekawa, Shuji Tabuchi
  • Patent number: 10115414
    Abstract: The turntable platter configuration of the present invention includes a groove on the platter edge about its periphery to allow for an improved ergonomic finger control for a DJ to alter the speed of the platter rotation. The turntable platter configuration also includes a regularly spaced shape about the periphery of the platter to be used with a strobe for allowing the user to ensure the rate of the rotation is at the appropriate speed, such as 33 RPM or 45 RPM.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: October 30, 2018
    Assignee: inMusic Brands, Inc.
    Inventors: John O'Donnell, Scott Puckett, Ross H. Goodwin, Christopher Roman
  • Patent number: 10115425
    Abstract: Provided is a coating-type magnetic recording medium for microwave assisted recording. A magnetic recording medium for microwave assisted recording having a magnetic layer including ferromagnetic powder and a binder on a non-magnetic support, in which the magnetic layer exhibits an intrinsic ferromagnetic resonance frequency of 30.0 GHz or more. A magnetic recording device including the magnetic recording medium and a magnetic head for microwave assisted recording.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: October 30, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Osamu Shimizu, Tatsuo Mikami
  • Patent number: 10115419
    Abstract: A method and system provide a magnetic transducer having an air-bearing surface (ABS). The method includes providing a first shield, a first read sensor, an antiferromagnetically coupled (AFC) shield that includes an antiferromagnet, a second read sensor and a second shield. The read sensors are between the first and second shields. The AFC shield is between the read sensors. An optional anneal for the first shield is in a magnetic field at a first angle from the ABS. Anneals for the first and second read sensors are in magnetic fields in desired first and second read sensor bias directions. The AFC shield anneal is in a magnetic field at a third angle from the ABS. The second shield anneal is in a magnetic field at a fifth angle from the ABS. The fifth angle is selected based on a thickness and a desired AFC shield bias direction for the antiferromagnet.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: October 30, 2018
    Assignee: WESTERN DIGITAL (FREMONT), LLC
    Inventors: Rongfu Xiao, Shihai He, Daniele Mauri, Ming Mao, Shaoping Li
  • Patent number: 10115436
    Abstract: Described are filters useful in a hard disk drive of a comparable electronic device that requires a highly contaminant-free environment for operation, particularly to these devices in combination with the filter, wherein the filter contains graphene.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: October 30, 2018
    Assignee: Seagate Technology LLC
    Inventors: Li Hong Zhang, Xiong Liu, Swee Chuan Gan
  • Patent number: 10109322
    Abstract: A data storage device that includes a housing and at least one data storage medium within the housing. The data storage device further includes an anti-shock system having at least one piezoelectric layer on a portion of the housing and at least one element electrically coupled to the at least one piezoelectric layer. The at least one element provides a deflection control signal to the at least one piezoelectric layer.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: October 23, 2018
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Hao Sun, Aravind Pitty, Xiong Liu
  • Patent number: 10102876
    Abstract: In a spindle motor, a cup portion of a base member includes a cylindrical portion coaxial or substantially coaxial with a central axis extending in a vertical direction and a bottom plate portion defined integrally with the cylindrical portion, and located to close a lower portion of the cylindrical portion. The bearing mechanism is inside of the cup portion and an outer circumferential surface of the bearing mechanism and an inner circumferential surface of the cylindrical portion include a first adhesive layer located therebetween. The base member includes a communicating hole that passes through the bottom plate portion in an axial direction. The communicating hole includes a second adhesive layer located therein.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: October 16, 2018
    Assignee: NIDEC CORPORATION
    Inventors: Tomohiro Yoneda, Takeshi Ohiro, Takayuki Ishino
  • Patent number: 10096331
    Abstract: A magnetic read head is provided, comprising a bottom magnetic shield, a first free magnetic layer, a second free magnetic layer, and a top magnetic shield, arranged from bottom to top in this order in a stacking direction from a leading side to a trailing side of the read head. A non-soft bias layer is positioned below the top magnetic shield and on a back side of the first and the second free magnetic layers. The top magnetic shield has a unidirectional anisotropy, the magnetic moments of the top and the bottom magnetic shields are canted relative to a plane of the first and the second free magnetic layers, and the top and the bottom magnetic shields are decoupled from the non-soft bias layer and not magnetically coupled to a soft bias layer.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: October 9, 2018
    Assignee: Western Digital Technologies, Inc.
    Inventors: Norihiro Okawa, Koujiro Komagaki, Takahiro Ibusuki
  • Patent number: 10090008
    Abstract: Implementations described and claimed herein include a reader structure, comprising a first reader, including a sensor stack and a top shield structure, the top shield structure comprises a synthetic antiferromagnetic shield (SAF) structure, including a reference layer including at least a layer of NiFe and an impurity additive, an RKKY coupling layer RKKY coupling layer (e.g., Ru layer), and a pinned layer. In another implementation, the RL of the SAF shield structure of a first reader includes at least a layer of amorphous magnetic material. Yet, in another implementation, the SAF shield structure includes an insertion layer of amorphous magnetic material under the SAF shield RL, within the SAF shield RL or between the SAF shield RL and SAF shield Ru.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: October 2, 2018
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Zhiguo Ge, Shaun E. McKinlay, Eric W. Singleton, LiWen Tan, Jae Young Yi
  • Patent number: 10090014
    Abstract: A magnetic recording medium for heat assisted magnetic recording (HAMR) including in ascending vertical sequence: (i) a substrate; (ii) a first amorphous layer, a first seed layer, or a combination thereof; (iii) a heat sink layer comprising hexagonal boron-nitride grains; (iv) an optional second amorphous layer; (v) an optional second seed layer; (vi) a magnetic recording layer; (vii) an optional capping layer; and (viii) an optional overcoat layer; wherein: the magnetic recording medium has a substrate plane and a basal plane perpendicular to the substrate plane; the heat sink layer is anisotropic and has an a-axis thermal conductivity in the basal plane and a c-axis thermal conductivity in the substrate plane, wherein the a-axis thermal conductivity is greater than the c-axis thermal conductivity; and the hexagonal boron-nitride grains have an average size of at least about 10 nm in the substrate plane. Also, provided is a method of manufacturing the magnetic recording medium for HAMR.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: October 2, 2018
    Assignee: Western Digital Technologies, Inc.
    Inventors: Antony Ajan, Kumar Srinivasan, Ning Ye
  • Patent number: 10083712
    Abstract: A method for manufacturing a magnetic core module in a magnetic head, the magnetic core module and the magnetic head. The method for manufacturing the magnetic core module includes: a process for placing a magnetic core group in a holder mold cavity as an insert; and a process for injection-molding in the holder mold cavity. A method for manufacturing the magnetic core module allows the magnetic core group and the holder to be integrally injection-molded with a method of injection molding which uses the magnetic core group as an insert. The method simplifies the process of manufacturing a magnetic head to improve production efficiency, and saves labor and production costs. Further, the method prevents failures such as positional displacement and scattering of magnetic cores, which tends to occur when assembling thin and small magnetic cores, and ensures an ideal yield for a product.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: September 25, 2018
    Assignee: TECHRECO COMPANY LIMITED
    Inventors: Masao Horiguchi, Ruining Gao
  • Patent number: 10074404
    Abstract: A device is disclosed herein. The device comprises a housing, a gas, an antenna, and a control module. The housing defines and hermetically seals an interior cavity. The gas is contained within the interior cavity of the housing at a pressure greater than atmospheric pressure. At least a portion of the antenna is within the interior cavity of the housing. The control module is operably coupled with the antenna to transmit an incident radio wave into the interior cavity of the housing and receive a reflected radio wave within the interior cavity of the housing. The control module is configured to determine a resonance frequency of the interior cavity of the housing based on, at least partially, the reflected radio wave, and determine the pressure of the gas contained within the interior cavity of the housing based on, at least partially, the resonance frequency of the interior cavity of the housing.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: September 11, 2018
    Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
    Inventors: Seong-Hun Choe, Yuta Onobu
  • Patent number: 10074393
    Abstract: The magnetic tape includes a magnetic layer having ferromagnetic powder and a binder on a non-magnetic support, in which the magnetic layer includes a timing-based servo pattern, the ferromagnetic powder is ferromagnetic hexagonal ferrite powder having an activation volume equal to or smaller than 1,600 nm3, and an edge shape of the timing-based servo pattern specified by a magnetic force microscope observation is a shape in which a difference (l99.9?l0.1) between a value l99.9 of a cumulative frequency function of 99.9% of a position deviation width from an ideal shape in a longitudinal direction of the magnetic tape and a value l0.1 of the cumulative frequency function of 0.1% thereof is equal to or smaller than 180 nm.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: September 11, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Tetsuya Kaneko, Norihito Kasada, Eiki Ozawa
  • Patent number: 10068619
    Abstract: A hand held data storage apparatus includes a disk-based storage device, an interface configured for data transfer with the storage device, and an enclosure that encapsulates the storage device and the interface, wherein the enclosure is configured with a rectangular mobile phone form factor.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: September 4, 2018
    Assignee: Western Digital Technologies, Inc.
    Inventors: David W. Chew, Thomas J. Hitchner
  • Patent number: 10068622
    Abstract: A base member includes a recessed portion arranged to extend in radial directions and recessed upward from a lower surface of the base member, the radial directions being directions perpendicular to a vertical direction; and a hole portion arranged to pass through the recessed portion in the vertical direction. The recessed portion includes a recessed portion loop-shaped surface being a loop-shaped surface perpendicular to the vertical direction. A connector is arranged on a lower side of the recessed portion to cover the hole portion. An adhesive is arranged between the connector and the recessed portion.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: September 4, 2018
    Assignee: NIDEC CORPORATION
    Inventors: Masahiro Akagi, Takeshi Ohiro, Tomohiro Yoneda, Akihiro Yudate, Takayuki Ishino, Sho Nakamura
  • Patent number: 10062396
    Abstract: A platter supported and driven turntable has a spindle, an upper circular platter, a lower circular platter, an arm board, and a tonearm assembly. The spindle is to rotate about a first direction. The spindle has a hub, a shaft and a bearing assembly between the hub and the shaft. The shaft has a flange. The upper circular platter is attached to the shaft of the spindle. The lower circular platter is attached to the flange of the shaft of the spindle. The arm board is attached to the hub of the spindle. The arm board has a first extension section, a mid-range section, and a second extension section. The mid-range section of the arm board is disposed between the upper circular platter and the lower circular platter. The tonearm assembly is directly attached to the first extension section of the arm board. The second extension section of the arm board is attached to a ballast or a supporting turntable through one or more adjustable height mounts.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: August 28, 2018
    Inventors: Cynthia Bennett Horn, Theodore S. Wills
  • Patent number: 10056104
    Abstract: A method is provided for judging whether a double-sided optical disc is placed reversely into an optical disc drive. The optical disc drive includes a first control module and a second control module. The first control module includes a first optical pickup head. The second control module includes a second optical pickup head. Firstly, the double-sided optical disc is loaded. Then, the first optical pickup head of the first control module emits a laser beam to a specified area of the double-sided optical disc and receives a reflected laser beam from the specified area. If the reflected laser beam generates an alternate brightness and darkness change, the double-sided optical disc is not placed reversely. If the reflected laser beam does not generate the alternate brightness and darkness change, the double-sided optical disc is placed reversely.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: August 21, 2018
    Assignee: LITE-ON TECHNOLOGY CORPORATION
    Inventors: Yu-Ta Ho, Chou-Chien Chien
  • Patent number: 10049690
    Abstract: A method of forming a read head. The method includes forming first and second read sensors that are substantially trapezoidal in shape. A first read measurement is performed on a storage medium using the first read sensor. A second read measurement is performed on the storage medium using the second read sensor. Based on a comparison of the first and second read measurements to a predetermined quantity, either the first read sensor or the second read sensor is selected to be operational in a data storage device.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: August 14, 2018
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Victor Sapozhnikov, Taras Grigorievich Pokhil, Mohammed Shariat Ullah Patwari