Patents by Inventor Oscar J. Ruiz

Oscar J. Ruiz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240321295
    Abstract: The present disclosure generally relates to a head assembly in a data storage device. The data storage device may include magnetic media embedded in the device or magnetic media from an insertable cassette or cartridge (e.g., in an LTO drive), where the head assembly reads from and writes to the magnetic media. During device operation, the magnetic media moves across the head assembly. The magnetic media experiences higher contact stress at certain points or portions of the head assembly. A sensor guard is coupled to the head assembly. The sensor guard comprises at least one chamfered surface or at least one stepped surface to decrease the contact stress between the magnetic media and the head assembly during device operation. The at least one chamfered or stepped surface may be disposed on a leading edge of the sensor guard.
    Type: Application
    Filed: June 5, 2024
    Publication date: September 26, 2024
    Applicant: Western Digital Technologies, Inc.
    Inventors: Oscar J. RUIZ, Kenji KUROKI, Eduardo TORRES MIRELES
  • Patent number: 12033674
    Abstract: The present disclosure generally relates to a head assembly in a data storage device. The data storage device may include magnetic media embedded in the device or magnetic media from an insertable cassette or cartridge (e.g., in an LTO drive), where the head assembly reads from and writes to the magnetic media. During device operation, the magnetic media moves across the head assembly. The magnetic media experiences higher contact stress at certain points or portions of the head assembly. A sensor guard is coupled to the head assembly. The sensor guard comprises at least one chamfered surface or at least one stepped surface to decrease the contact stress between the magnetic media and the head assembly during device operation. The at least one chamfered or stepped surface may be disposed on a leading edge of the sensor guard.
    Type: Grant
    Filed: November 21, 2022
    Date of Patent: July 9, 2024
    Assignee: Western Digital Technologies, Inc.
    Inventors: Oscar J. Ruiz, Kenji Kuroki, Eduardo Torres Mireles
  • Patent number: 11990164
    Abstract: The present disclosure is generally related to a tape drive comprising a tape head assembly. The tape head assembly comprises a spring adaptor, the spring adaptor comprising a first hole, a second hole, and a spring member disposed between the first hole and the second hole, a beam disposed within the first hole of the spring adaptor, a first module disposed on the beam, the first module comprising a first plurality of write transducers and a first plurality of read transducers, a second module disposed on the beam adjacent to the first module, the second module comprising a second plurality of write transducers and a second plurality of read transducers, and an actuator disposed in the first hole. The actuator is controllable to move the beam in a direction transverse to a media movement direction. The spring adaptor stabilizes the beam while the beam is being actuated.
    Type: Grant
    Filed: July 28, 2023
    Date of Patent: May 21, 2024
    Assignee: Western Digital Technologies, Inc.
    Inventors: Kenji Kuroki, Oscar J. Ruiz, Eduardo Torres Mireles, Robert G. Biskeborn, Masahito Kobayashi
  • Patent number: 11676626
    Abstract: The present disclosure is generally related to a tape head comprising a first module and a second module joined together along a seam. The first module comprises a plurality of data heads disposed in a first row parallel to the seam, and the second module comprises a plurality of data heads disposed in a second row parallel to the first row. The first row and the second row are spaced apart a distance of about 50 ?m to about 175 ?m. A via is disposed at a media facing surface (MFS) along a portion of the seam. The via has a length less than a width of the MFS and equal to or greater than a length of the first and second rows of data heads. The via is configured to create a vacuum effect to pull a magnetic media against the media facing surface when the tape head reads and writes data to the magnetic media.
    Type: Grant
    Filed: March 11, 2022
    Date of Patent: June 13, 2023
    Assignee: Western Digital Technologies, Inc.
    Inventors: Robert G. Biskeborn, Oscar J. Ruiz
  • Patent number: 11615807
    Abstract: The present disclosure is generally related to a tape head assembly narrower than the width of a tape, wherein the tape head assembly comprises one or more heads, wherein each of the one or more heads comprise a curved surface comprising a first beveled wing, a second beveled wing, and a flat-lapped surface disposed between the first beveled wing and the second beveled wing. The first beveled wing and the second beveled wing each comprise outer corners recessed from a top surface of the flat-lapped surface such that there is no interaction between the outer corners of the beveled wings and the tape.
    Type: Grant
    Filed: March 30, 2022
    Date of Patent: March 28, 2023
    Assignee: Western Digital Technologies, Inc.
    Inventors: Robert G. Biskeborn, Oscar J. Ruiz, Kenji Kuroki, Michael T. Babin, Sr., Eduardo Torres
  • Publication number: 20230087767
    Abstract: The present disclosure generally relates to a head assembly in a data storage device. The data storage device may include magnetic media embedded in the device or magnetic media from an insertable cassette or cartridge (e.g., in an LTO drive), where the head assembly reads from and writes to the magnetic media. During device operation, the magnetic media moves across the head assembly. The magnetic media experiences higher contact stress at certain points or portions of the head assembly. A sensor guard is coupled to the head assembly. The sensor guard comprises at least one chamfered surface or at least one stepped surface to decrease the contact stress between the magnetic media and the head assembly during device operation. The at least one chamfered or stepped surface may be disposed on a leading edge of the sensor guard.
    Type: Application
    Filed: November 21, 2022
    Publication date: March 23, 2023
    Applicant: Western Digital Technologies, Inc.
    Inventors: Oscar J. RUIZ, Kenji KUROKI, Eduardo TORRES MIRELES
  • Patent number: 11532320
    Abstract: The present disclosure generally relates to a tape head and a tape drive including a tape head. The tape head comprises a first same gap verify (SGV) head assembly comprising a first media facing surface (MFS) and a plurality of first write transducer and first read transducer pairs, and a second SGV head assembly comprising a second MFS and a plurality of second write transducer and second read transducer pairs. During operation, when a tape or magnetic media moves in a first direction over the tape head, the tape contacts the second MFS and is spaced from the first MFS, and when the tape moves in a second direction opposite the first direction over the tape head, the tape contacts the first MFS and is spaced from the second MFS. As such, the tape contacts only one edge of either the first or second MFS during operation.
    Type: Grant
    Filed: October 27, 2021
    Date of Patent: December 20, 2022
    Assignee: Western Digital Technologies, Inc.
    Inventors: Robert G. Biskeborn, Oscar J. Ruiz
  • Patent number: 11430480
    Abstract: A data storage device configured to access a magnetic tape wound around a first reel and a second reel is disclosed, wherein the data storage device comprises at least one head configured to access the magnetic tape. A distortion of the magnetic tape is measured, and the magnetic tape is rewound so that the first and second reels have a respective first and second radius of the wound magnetic tape based on the measured distortion.
    Type: Grant
    Filed: February 22, 2021
    Date of Patent: August 30, 2022
    Assignee: Western Digital Technologies, Inc.
    Inventors: Kenji Kuroki, Oscar J. Ruiz, Masahito Kobayashi
  • Publication number: 20220199118
    Abstract: A data storage device configured to access a magnetic tape wound around a first reel and a second reel is disclosed, wherein the data storage device comprises at least one head configured to access the magnetic tape. A distortion of the magnetic tape is measured, and the magnetic tape is rewound so that the first and second reels have a respective first and second radius of the wound magnetic tape based on the measured distortion.
    Type: Application
    Filed: February 22, 2021
    Publication date: June 23, 2022
    Inventors: Kenji Kuroki, Oscar J. Ruiz, Masahito Kobayashi
  • Patent number: 9922676
    Abstract: A data storage device is disclosed comprising a head actuated over a disk, wherein the head comprises a laser configured to heat the disk while writing data to the disk. A write power is applied to the laser in order to write data to the disk during a write operation. A determination is made as to whether the laser power should be in an off state after the write operation. After the write operation, the laser power is gradually decreased to the off state based on a first decrease function.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: March 20, 2018
    Assignee: Western Digital Technologies, Inc.
    Inventors: Erhard Schreck, Oscar J. Ruiz, Na Wang, Shaomin Xiong, Qing Dai
  • Patent number: 8854764
    Abstract: Techniques of the present invention include detecting a touchdown between a read/write head of a disk drive and a surface of a magnetic disk using multiple touchdown sensors located at an air-bearing surface (ABS). The multiple sensors increase the likelihood that a touchdown event—i.e., a portion of the ABS of the head contacting the underlying magnetic disk surface—will be detected. During touchdown, the portion of the head contacting the magnetic disk generates frictional heat which changes a characteristic (e.g., the electrical resistance) of at least one of the sensors located at the ABS. When the sensors are connected to a detection circuit, the changing characteristic may be monitored to identify a touchdown event. The touchdown sensors may be, for example, electrically connected in either series or parallel to the detection circuit. Thus, as long as the electrical resistance of one of the sensors is changed, a touchdown event may be detected.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: October 7, 2014
    Assignee: HGST Netherlands B.V.
    Inventors: Andrew Chiu, Sujit Kirpekar, Katalin Pentek, Oscar J. Ruiz, David J. Seagle
  • Patent number: 8797671
    Abstract: In one general embodiment, a magnetic head includes a slider having a media-facing surface; and a device coupled to the slider and being selectively extendible for selectively contacting a magnetic medium at a frequency of between about 200 and about 600 kHz. Other magnetic heads and methods of use are described according to additional embodiments.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: August 5, 2014
    Assignee: HGST Netherlands B.V.
    Inventors: Oscar J. Ruiz, Erhard Schreck
  • Publication number: 20130308223
    Abstract: In one general embodiment, a magnetic head includes a slider having a media-facing surface; and a device coupled to the slider and being selectively extendible for selectively contacting a magnetic medium at a frequency of between about 200 and about 600 kHz. Other magnetic heads and methods of use are described according to additional embodiments.
    Type: Application
    Filed: May 17, 2012
    Publication date: November 21, 2013
    Applicant: HGST NETHERLANDS B.V.
    Inventors: Oscar J. Ruiz, Erhard Schreck
  • Patent number: 8493688
    Abstract: A head slider for a disk drive storage device. The head slider is adapted to fly at the target height above the disk, reduce contamination by preventing particles from being trapped under the head slider, fly well in helium at low velocity and obtain a manufacturing tolerance so that multiple head sliders may be produced and function properly. The head slider has an internal cavity that is substantially enclosed by the air bearing surface. There are two gaps in the air bearing surface that are misaligned relative to the leading edge. The gaps aid in preventing particles from entering the cavity.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: July 23, 2013
    Assignee: HGST Netherlands B.V.
    Inventors: Rohit P. Ambekar, Karl A. Flechsig, Remmelt Pit, Oscar J. Ruiz
  • Publication number: 20130083430
    Abstract: Techniques of the present invention include detecting a touchdown between a read/write head of a disk drive and a surface of a magnetic disk using multiple touchdown sensors located at an air-bearing surface (ABS). The multiple sensors increase the likelihood that a touchdown event—i.e., a portion of the ABS of the head contacting the underlying magnetic disk surface—will be detected. During touchdown, the portion of the head contacting the magnetic disk generates frictional heat which changes a characteristic (e.g., the electrical resistance) of at least one of the sensors located at the ABS. When the sensors are connected to a detection circuit, the changing characteristic may be monitored to identify a touchdown event. The touchdown sensors may be, for example, electrically connected in either series or parallel to the detection circuit. Thus, as long as the electrical resistance of one of the sensors is changed, a touchdown event may be detected.
    Type: Application
    Filed: September 30, 2011
    Publication date: April 4, 2013
    Inventors: Andrew Chiu, Sujit Kirpekar, Katalin Pentek, Oscar J. Ruiz, David J. Seagle
  • Patent number: 8270115
    Abstract: A method and apparatus for a head slider air bearing surface (ABS) in hard disk drives that mitigate fly height deviations. The invention mitigates these problems by providing an ABS of the head slider with elongated asymmetrical features that extend substantially parallel to the direction of the airflow caused by the rotating magnetic disk, in one or both of the inner diameter (ID) and outer diameter (OD) positions of the head slider with respect to the magnetic disk. The head slider may be produced with a two step etch process, as opposed to a three step etch process. By reducing the number of etching steps, the head slider of the invention can be produced at lower costs and in less time as fewer masks and chamber pump-down steps are required.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: September 18, 2012
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventor: Oscar J. Ruiz
  • Publication number: 20120099225
    Abstract: A head slider for a disk drive storage device. In general, the head slider should fly at the target height above the disk without crashing onto the hard disk. The head slider has an outside flange that encloses a plateau and an inside flange that encloses a plateau. The two plateaus may have the same surface area or the outside plateau may have a greater surface area. Because of the design of the outside flange, the likelihood that the head slider will crash on the hard disk is reduced.
    Type: Application
    Filed: October 20, 2010
    Publication date: April 26, 2012
    Inventors: Rohit P. Ambekar, Nghia Bach, Remmelt Pit, Oscar J. Ruiz
  • Patent number: 8164860
    Abstract: A head slider for a disk drive storage device. In general, the head slider should fly at the target height above the disk without crashing onto the hard disk. The head slider has an outside flange that encloses a plateau and an inside flange that encloses a plateau. The two plateaus may have the same surface area or the outside plateau may have a greater surface area. Because of the design of the outside flange, the likelihood that the head slider will crash on the hard disk is reduced.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: April 24, 2012
    Assignee: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Rohit P. Ambekar, Nghia Bach, Remmelt Pit, Oscar J. Ruiz
  • Publication number: 20120050918
    Abstract: A head slider for a disk drive storage device. The head slider is adapted to fly at the target height above the disk, reduce contamination by preventing particles from being trapped under the head slider, fly well in helium at low velocity and obtain a manufacturing tolerance so that multiple head sliders may be produced and function properly. The head slider has an internal cavity that is substantially enclosed by the air bearing surface. There are two gaps in the air bearing surface that are misaligned relative to the leading edge. The gaps aid in preventing particles from entering the cavity.
    Type: Application
    Filed: August 25, 2010
    Publication date: March 1, 2012
    Inventors: Rohit P. Ambekar, Karl A. Flechsig, Remmelt Pit, Oscar J. Ruiz
  • Patent number: 8098458
    Abstract: Embodiments of the present invention pertain to a slider designed to reduce fly height sigma. According to one embodiment, a slider includes an air bearing surface, a front shallow step pad, a rear shallow step pad, and rear side pockets. The front shallow step pad and the rear shallow step pad are at a first level deeper than the air bearing surface. The rear side pockets are at a second level deeper than the air bearing surface. The rear side pockets are in close proximity to rear corners of the slider.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: January 17, 2012
    Assignee: Hitachi Global Storage Technologies, Netherlands B.V.
    Inventor: Oscar J. Ruiz