Patents Assigned to Seagate Technology LLC
  • Patent number: 10971195
    Abstract: Aspects of the disclosure are directed to apparatuses and methods involving a desiccant chamber and related componentry, as may be utilized for controlling humidity in electrical enclosures. As may be consistent with one or more embodiments, an environmental control module (ECM) includes a desiccant chamber with a desiccant material therein, first and second membranes in a pathway extending from the desiccant chamber and through respective openings in the ECM, and a gasket and enclosure on the ECM which seal the pathway. A seal in the pathway seals the opening in ECM leading to the first membrane and desiccant chamber during evacuation and fill of an electrical enclosure in which the ECM may be employed, and can be broken to couple the desiccant to the electrical enclosure.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: April 6, 2021
    Assignee: Seagate Technology LLC
    Inventors: Maxwell R. Kraus, Paul A. Beatty
  • Patent number: 10968518
    Abstract: Systems and methods for treating a carbon overcoat surface are described. In one embodiment, the method may include depositing a magnetic recording layer over a substrate, depositing a carbon overcoat layer over the magnetic recording layer, and exposing a carbon overcoat layer to water in gas phase after the carbon overcoat layer is deposited on the magnetic recording layer. In some cases, the method may include depositing a lubricant over the outer surface of the carbon overcoat after exposing the carbon overcoat layer to the water in gas phase.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: April 6, 2021
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventor: Paul M. Jones
  • Patent number: 10969308
    Abstract: Aspects of the disclosure are directed to apparatuses and methods involving particulate sampling. As may be consistent with one or more embodiments, an apparatus includes a flow direction structure, a flow sampler and a particle collector having a collecting surface. The flow direction structure has interior sidewalls that direct the flow of particulate-laden gas along a flow path. The flow sampler is located in the flow path within the interior sidewalls, and operates with the flow direction structure to sample a portion of the particulate-laden gas at a reduced velocity, while allowing another portion of the particulate-laden gas to exhaust around the flow sampler. The flow sampler operates with the particle collector to direct the sampled portion of the particulate-laden gas to the collecting surface, and to adhere particulates from the particulate-laden gas to the collecting surface.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: April 6, 2021
    Assignee: Seagate Technology LLC
    Inventors: Dennis Q. Cruz, Richard Nguyen, Jonathan P. Jones, Sumit Chandra
  • Patent number: 10970146
    Abstract: Systems and methods for adaptive fault prediction analysis are described. In one embodiment, the system includes one or more computing components, and one or more hardware controllers. In some embodiments, the storage system includes a storage drive. At least one of the one or more hardware controllers is configured to analyze one or more tolerance limits of a first computing component among the plurality of computing components; calculate a failure metric of the first computing component based at least in part on the analysis of the one or more tolerance limits of the first computing component; analyze sensor data from the first computing component in real time; and update the failure metric based at least in part on the analyzing of the sensor data.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: April 6, 2021
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Deepak Nayak, Hemant Mohan
  • Patent number: 10971177
    Abstract: A first heat-assisted magnetic recording (HAMR) writer writes to a surface of a magnetic disk using during an initial time period. A second HAMR writer is configured to write to the surface but not during the initial time period. The initial time period extends from a first time when the disk drive is first used to a second time when a near-field transducer of the first HAMR writer reaches a first wear threshold. During a subsequent time period after the initial time period, to the surface of the disk is written to using the second HAMR writer and not the first HAMR writer.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: April 6, 2021
    Assignee: Seagate Technology LLC
    Inventors: James E. Angelo, Mehmet Fatih Erden, John W. Dykes
  • Patent number: 10971180
    Abstract: A method of forming a near field transducer (NFT), the method including the steps of depositing a primary material; and implanting a secondary element, wherein both the primary material and the secondary element are chosen such that the primary material is densified via implantation of the secondary element.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: April 6, 2021
    Assignee: Seagate Technology LLC
    Inventors: Sethuraman Jayashankar, Sarbeswar Sahoo
  • Patent number: 10971179
    Abstract: A write head includes an input coupler configured to receive light excited by a light source. A waveguide core is configured to receive light from the input coupler at a fundamental transverse electric (TE00) mode. The waveguide core has a first straight portion. The waveguide core has a mode converter portion comprising a branched portion extending from the first straight portion. The mode converter portion is configured to convert the light to a higher-order (TE10) mode, the mode converter portion spaced apart from the input coupler. The waveguide core has a second straight portion between the mode converter portion and a media-facing surface. The write head has a near-field transducer at the media-facing surface, the near-field transducer receiving the light at the TE10 mode from the waveguide and directing surface plasmons to a recording medium in response thereto.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: April 6, 2021
    Assignee: Seagate Technology LLC
    Inventors: Reyad Mehfuz, Aidan Dominic Goggin, Pierre Asselin, Christopher Neil Harvey
  • Patent number: 10963186
    Abstract: Implementations disclosed herein provide a method of receiving a command from a host, the command providing a starting logical block address (LBA) and a length of the command, generating a multiplicity bit mask (MBM) for the command in response to receiving a command from a host, and storing the MBM to an MBM table in a row corresponding to a stream that the command is part of.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: March 30, 2021
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Andi Sumaryo Sutiawan, Brandon Mun Hon Yuen, Xu Huang
  • Patent number: 10964347
    Abstract: A device including a near field transducer, the near field transducer including gold (Au), silver (Ag), copper (Cu), or aluminum (Al), and at least two other secondary atoms, the at least two other secondary atoms selected from: boron (B), bismuth (Bi), indium (In), sulfur (S), silicon (Si), tin (Sn), manganese (Mn), tellurium (Te), holmium (Ho), lutetium (Lu), praseodymium (Pr), scandium (Sc), uranium (U), barium (Ba), chlorine (Cl), cesium (Cs), dysprosium (Dy), europium (Eu), fluorine (F), germanium (Ge), hydrogen (H), iodine (I), rubidium (Rb), selenium (Se), terbium (Tb), nitrogen (N), oxygen (O), carbon (C), antimony (Sb), gadolinium (Gd), samarium (Sm), thallium (Tl), cadmium (Cd), neodymium (Nd), phosphorus (P), lead (Pb), hafnium (Hf), niobium (Nb), erbium (Er), zinc (Zn), magnesium (Mg), palladium (Pd), vanadium (V), zinc (Zn), chromium (Cr), iron (Fe), lithium (Li), nickel (Ni), platinum (Pt), sodium (Na), strontium (Sr), calcium (Ca), yttrium (Y), thorium (Th), beryllium (Be), thulium (Tm), erbium
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: March 30, 2021
    Assignee: Seagate Technology LLC
    Inventors: Yuhang Cheng, Tong Zhao, Michael C. Kautzky, Ed F. Rejda, Kurt W. Wierman, Scott Franzen, Sethuraman Jayashankar, Sarbeswar Sahoo, Justin Glen Brons, Steve C. Riemer, Jie Gong, Michael Allen Seigler
  • Patent number: 10963351
    Abstract: A data backup system can be implemented in a data storage enclosure that houses a backup controller. The backup controller may be connected to a storage media and a backup media via a switch. The backup media can be resassigned from an unavailable condition to an available condition by the backup controller in response to predicted degradation in the storage media. The backup media may be connected to a root complex of the backup controller via a backup partition and selection feature.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: March 30, 2021
    Assignee: Seagate Technology LLC
    Inventors: Lalitha Kameswar Mallela, Sumanranjan Mitra, AppaRao Puli, Siva Prakash Rajaram
  • Patent number: 10964342
    Abstract: A method of controlling a shape and size of at least one solder joint of a magnetic recording head that includes a trailing surface and a plurality of bond pads, wherein each bond pad comprises a base layer comprising a top surface and a top edge, the method including the steps of forming at least one solder dam by covering a portion of the top surface of the base layer of at least one of the bond pads with a coating layer that comprises a nonwettable, electrically conductive material positioned adjacent to the top edge of at least one of the bond pads, thereby defining a coated portion and an uncoated portion of the base layer, and applying solder material to the uncoated portion of the base layer adjacent to the solder dam so that the coating layer constrains movement of the solder material beyond the uncoated portion.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: March 30, 2021
    Assignee: Seagate Technology LLC
    Inventors: Robbee Lee Grimm, Greg Arthur Schmitz, Venkateswara Rao Inturi, Aaron Michael Collins
  • Patent number: 10964340
    Abstract: A recording head has a near-field transducer proximate a media-facing surface of the recording head. The near-field transducer extends a first distance away from the media-facing surface. A waveguide overlaps and delivers light to the near-field transducer. Two subwavelength focusing mirrors are at an end of the waveguide proximate the media-facing surface and extend a second distance away from the media-facing surface that is less than the first distance. The subwavelength mirrors are on opposite crosstrack sides of the near-field transducer and separated from each other by a crosstrack gap. The subwavelength focusing mirrors each include a first material at the media-facing surface; and a second material facing away from the media facing surface and in contact with the first material. The second material includes a plasmonic material, and the first material is more mechanically robust than the second material.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: March 30, 2021
    Assignee: Seagate Technology LLC
    Inventors: Weibin Chen, Nan Zhou, Ruoxi Yang, Michael Allen Seigler
  • Patent number: 10963188
    Abstract: A digital sensor stream is received from a sensor. A domain transform is performed on the digital sensor stream to produce first and second substreams. The first substream is larger than the second substream. The first substream is stored in cold storage and the second substream is stored in a second storage that has faster access times than the cold storage. Deep machine learning is performed on the second substream, the results of which may be stored in the second storage.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: March 30, 2021
    Assignee: Seagate Technology LLC
    Inventors: Mehmet Fatih Erden, Manuel Alexander Offenberg
  • Patent number: 10964354
    Abstract: A heat-assisted magnetic recording device is disposed in a hermetically sealed enclosure. The device includes a slider comprising a reader, a writer, and an optical waveguide configured to couple light from a light source to a near-field transducer situated at or near an air bearing surface of the slider. The near-field transducer comprises an enlarged portion and a peg extending from the enlarged portion in a direction of the air bearing surface. A fill gas is provided within the enclosure. The fill gas comprises a mixture of a low-density, inert gas and at least one gas that oxidizes carbon, where the total carbon oxidizing gas concentration of the fill gas is 3-50% by volume. In certain embodiments, the fill gas comprises a hydrogen concentration sufficient to retard oxidation of the peg when the peg is at an operating temperature associated with write operations.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: March 30, 2021
    Assignee: Seagate Technology LLC
    Inventors: Robert D. Turner, Yuhang Cheng, Peter W. Kanas, Martin Liam McGarry, Peter Kevin McGeenhin, Kevin R. Heim, Edward Charles Gage, Shaikh Mubassar Ali, Huazhou Lou
  • Patent number: 10964345
    Abstract: A data storage device includes a first data storage surface and a second data storage below the first data storage surface. The data storage device also includes a first micro-actuator coupled to a first arm that supports a first head over the first data storage surface, and a second micro-actuator coupled to a second arm that supports a second head over the second data storage surface. The data storage device further includes a coarse actuator, to which the first and second arms are coupled, that positions the first head and the second head between corresponding first and second tracks on the respective first and second data storage surfaces. Micro-actuator drive circuitry finely positions the first head over the first track and the second head over the second track by concurrently driving the first micro-actuator and the second micro-actuator in opposite directions.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: March 30, 2021
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Kenneth Haapala, Binh Kim Lieu, Evgeny Kharisov, Raye A. Sosseh
  • Patent number: 10956068
    Abstract: A data storage device can have one or more timestamps to indicate chronological information associated with data stored in the data storage device. A controller may be connected to a timestamp module and a transducing head to allow a timestamp to be written to a magnetic data storage medium as directed by the timestamp module. The timestamp can consist of chronological information relating to user-generated data stored on the data storage medium.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: March 23, 2021
    Assignee: Seagate Technology LLC
    Inventor: Christopher Nicholas Allo
  • Patent number: 10957363
    Abstract: A disk drive, has a housing structure enclosing a disk and at least one recording head. The drive includes a plurality of capsules each comprising oxygen gas enclosed within a membrane. An oxygen diffusion rate of the membrane is selected to release oxygen into the housing structure at a rate that compensates for oxygen depletion within the housing structure.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: March 23, 2021
    Assignee: Seagate Technology LLC
    Inventor: John L. Brand
  • Patent number: 10956064
    Abstract: Method and apparatus for managing data in a non-volatile memory (NVM) of a storage device, such as a solid-state drive (SSD). A circuit measures programming and reading temperatures for a set of memory cells in the NVM. Error rates are determined for each of the reading operations carried out upon the data stored in the memory cells. A code rate for the NVM is adjusted to maintain a selected error rate for the memory cells. The code rate is adjusted in relation to a cross-temperature differential (CTD) value exceeding a selected threshold. The code rate can include an inner code rate as a ratio of user data bits to the total number of user data bits and error correction code (ECC) bits in each code word written to the NVM, and/or an outer code rate as a strength or size of a parity value used to protect multiple code words.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: March 23, 2021
    Assignee: Seagate Technology LLC
    Inventors: Darshana H. Mehta, Kurt Walter Getreuer, Antoine Khoueir, Christopher Joseph Curl
  • Patent number: 10955881
    Abstract: An electronic memory module can be cooled by a cooling assembly that consists of at least a printed circuit board connected to at least one data storage component. The memory module may be housed within, and in physical contact with, a cooling frame that surrounds a periphery of the printed circuit board. The cooling frame can have a seating tab that is separated from the memory module, spans the memory module, and supports a heatsink in contact with the at least one data storage component.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: March 23, 2021
    Assignee: Seagate Technology LLC
    Inventors: Shankar Gopalakrishna, Vivekananda Avvaru, Saju Cheeran Verhgese Francis
  • Patent number: RE48497
    Abstract: In electronic equipment device 1, a limitation level on reading an access level to selectively control the ability to read data from a USB flash drive (storage device) 2 is set to a setting section by an access level setting unit 3 in advance. The USB flash drive 2 ascertains the setting at the setting section 3 access level when the USB flash drive is connected to the electronic equipment 1 and limits reading data based on the determined setting device. If the limitation access level does not match with the condition for permitting data read-out as determined in USB flash drive 2 permit the reading of data, the USB flash drive 2 prohibits the electronic equipment 1 device from reading out data from a memory 24 of the USB flash drive by removing an application of power from the external device to the memory. By executing the processing for limiting data read-out at the side of the USB flash drive 2, unauthorized leakage of data can easily be prevented.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: March 30, 2021
    Assignee: Seagate Technology LLC
    Inventor: Tatsuaki Amemura