Patents Examined by Andrew V Do
  • Patent number: 11061003
    Abstract: Described are a method and apparatus for diluting a chromatographic sample. The method includes repeating an alternating acquisition of sample fluidic plugs each having an incremental volume of sample and diluent fluidic plugs each having an incremental volume of diluent to obtain a stack of alternating sample and diluent fluidic plugs. The stack is inserted into a flow of a mobile phase in a chromatography system. Alternatively, the method includes repeating the steps of injecting an incremental volume of sample into a chromatographic system flow and providing an incremental volume of mobile phase into the chromatographic system flow. In either implementation, the dilution ratio of the sample equals the sum of the incremental volumes of the sample and the diluent or mobile phase divided by the sum of the incremental volumes of the sample.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: July 13, 2021
    Assignee: WATERS TECHNOLOGIES CORPORATION
    Inventors: Martin Gilar, Keith Fadgen, Peyton C. Beals, Sylvain Gilles Cormier, Richard Wayne Andrews, Geoff C. Gerhardt, Jordan Kornfeld, Thomas S. McDonald
  • Patent number: 11054260
    Abstract: A vibration type angular velocity sensor includes a substrate having a surface; a plurality of fixation parts, a plurality of weights, two linear drive beams, a plurality of supporting members, a drive part and a detection part. The two linear drive beams are disposed on opposite sides of the weights in one direction so as to be connected to each other through the weights. The supporting members join the fixation parts to the drive beams. The drive part drives the drive beams to vibrate. The detection part generates an electric output according to displacement of the weights caused by an angular velocity applied thereto while the drive beams are being driven to vibrate. The fixation parts are disposed between the two linear drive beams.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: July 6, 2021
    Assignee: DENSO CORPORATION
    Inventor: Tomoya Jomori
  • Patent number: 11048182
    Abstract: A method for producing an article having a novel metal gloss which does not use a solvent when forming an article having metallic luster, and a toner for metallic luster color and a printing method using the same.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: June 29, 2021
    Inventors: Katsuyoshi Hoshino, Terumasa Mitogawa, Katsuma Miyamoto
  • Patent number: 11022915
    Abstract: An image forming apparatus includes a belt unit including an endless belt, a supporting unit and a steering unit, and further includes a cleaning unit, a receiving opening and a communicating portion. The communicating portion includes a tube-shaped portion constituted by a bellows-shaped elastic member capable of expansion and contraction with movement of the steering unit.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: June 1, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hitoshi Kubota, Yasuhiro Shimoi, Hiroki Takayama
  • Patent number: 11016412
    Abstract: A printing device, including: a cartridge storing developer; a memory provided in the cartridge; and a controller configured to execute a printing process of operating the cartridge form a developer image on a sheet by use of the developer in the cartridge, a first access process of performing access to the memory when the printing process is not being executed, and a second access process of performing access to the memory in a period in which the printing process is being executed, in response to a predetermined operation of the printing device, wherein, when an access failure occurs in the first access process, the controller notifies an error, and wherein, when an access failure occurs in the second access process, the controller continues the printing process and executes the second access process again in response to a next timing of the predetermined operation of the printing device.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: May 25, 2021
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Takashi Suzuki, Tadao Kyotani
  • Patent number: 11016416
    Abstract: According to one embodiment, an image forming apparatus includes a developing device, a sensor, a control information obtaining unit, and a control unit. The developing device forms an image on an image carrier using a developer. The sensor generates a signal indicating a measurement value related to the developer. The control information obtaining unit obtains, as control information of the developing device, one or more pieces of the control information pre-associated with the measurement value, from a recording medium associated with the developer. The control unit selects the control information associated with the measurement value indicated by the signal, from the one or more pieces of control information obtained from the recording medium. The control unit controls an operation of the developing device based on the selected control information.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: May 25, 2021
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Hisanobu Ajima, Nobuo Tohata, Yuichiro Takeda
  • Patent number: 11009826
    Abstract: An image forming apparatus, including a process cartridge and a main body with an opening and a cover, is provided. The process cartridge includes a drum cartridge, a toner cartridge, and a switching member. The switching member switches states in the process cartridge between a first state, wherein the toner cartridge is restricted from being detached, and a second state, wherein the toner cartridge is released from the restriction. The process cartridge is movable between an attached position to be placed entirely inside the main body and a detached position to be entirely outside the main body. The main body includes a restrictor to restrict the process cartridge from moving from an intermediate position toward the detached position. While the process cartridge is restricted by the restrictor, a supportive part in the cover supports the process cartridge with the switching member being at least partly placed outside the main body.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: May 18, 2021
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Shougo Sato, Yasuo Fukamachi, Motoaki Mushika, Kazuna Taguchi
  • Patent number: 11002726
    Abstract: A test element analysis system for an analytical examination of a sample, in particular of a body fluid, is disclosed. The test element analysis system comprises an evaluation device with a test element holder for positioning a test element containing the sample and a measuring device for measuring a change in a measuring zone of the test element, the change being characteristic for an analyte. The test element holder contains contact elements with contact surfaces which allow an electrical contact between contact surfaces of the test element and the contact surfaces of the test element holder. The contact surfaces of the contact elements of the test element holder are provided with an electrically conductive surface containing metallic ruthenium.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: May 11, 2021
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Kai Hebestreit, Sylvia Saecker, Klaus Thome, Werner Heidt
  • Patent number: 10996156
    Abstract: A high throughput rheology machine measures transient response to a material subject to the decaying oscillation to determine nonlinear characteristics of the material with a single test cycle.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: May 4, 2021
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Melih Eriten, Utku Boz
  • Patent number: 10996094
    Abstract: A mica water level gauge glass includes a steam tee fitting, a balance pipe, a water tee fitting, a steam connecting pipe, a water connecting pipe, a condensation tank, a longitudinal vertical gauge body, and a mica assembly. The gauge body includes a thermal compensation cavity, a steam-water cavity, an auxiliary heat confluence device, and a horizontal steam cavity. The exit points of the thermal compensation cavity arranged in the gauge body is lower than the point of the steam-water cavity exiting from the gauge body.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: May 4, 2021
    Assignee: QINHUANGDAO HUADIAN MEASUREMENT & CONTROL EQUIPMENT CO., LTD
    Inventors: Mingsi Cui, Shaobin Dong, Jichuan Liu, Hai Qu, Xueying Qu
  • Patent number: 10975686
    Abstract: A detection system to detect an object in a blowout prevention system of a production system includes a sensor coupled to the blowout prevention system and configured to send an ultrasonic pulse toward the object. The sensor is further configured to receive a signal including the ultrasonic pulse and noise after the ultrasonic pulse interacts with the object. The detection system also includes a controller coupled to the sensor and configured to identify the ultrasonic pulse in the signal using a first cancellation signal at a first time and a second cancellation signal at a second time. The controller is further configured to determine that the first cancellation signal corresponds to the noise in the signal at the first time, and determine that the second cancellation signal corresponds to the noise in the signal at the second time. The controller is configured to determine a characteristic of the object based on the ultrasonic pulse.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: April 13, 2021
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Edward James Nieters, Emad Andarawis Andarawis, Dayu Huang, Jayakrishnan Unnikrishnan
  • Patent number: 10969739
    Abstract: A developing device including a developing roller mounted in a developing chamber is provided. In the developing device, the developing roller is partially exposed to an environment outside the developing chamber through an opening portion of the developing chamber, an air inlet is provided between an upstream boundary of the opening portion in a rotational direction of the developing roller and an outercircumference of the developing roller, wherein air may pass into the developing chamber through the air inlet, and an air outlet may be formed near the upstream boundary of the opening portion and communicatively connected to the developing chamber so as to discharge the air in the developing chamber. The air outlet is located outside an effective image area in a length direction of the developing roller.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: April 6, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jong Hyun Park, Mitsuru Oikawa, Jong Hwa Park
  • Patent number: 10969264
    Abstract: A capacitive level sensor (10) for measuring the level of a medium (14) in a container (12) is provided having a probe (16) for immersion into the medium (14) that has at least one measurement electrode (26) for a capacitance measurement and having a measurement and evaluation unit (20) that is configured to determine a capacitance at the measurement electrode (26) and to calculate a level from it. In this respect, the probe (16) has at least one reference electrode (28) for a capacitance measurement independent of the level to thus compensate environmental influences on the capacitance measurement at the measurement electrode (26).
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: April 6, 2021
    Assignee: SICK AG
    Inventor: Marc Ihle
  • Patent number: 10948841
    Abstract: An image forming apparatus includes an image forming section, a driving unit and an operation unit. The image forming section includes one or more image forming units. The driving unit generates driving force. The operation unit selectively performs a first operation and a second operation. The first operation is an operation to change over from a coupled state of the one or more image forming units and the driving unit, which the driving force is transmitted to the one or more image forming units, to a released state of the one or more image forming unit and the driving unit, which the driving force from the driving unit is not transmitted to the one or more image forming units. When the second operation is performed, the released state is maintained.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: March 16, 2021
    Assignee: Oki Data Corporation
    Inventor: Kohei Otomo
  • Patent number: 10934833
    Abstract: A method and apparatuses for testing the blowout preventer (BOP) piping system on a drilling rig for leaks. The method and apparatuses can be used in conjunction with a pressure or volumetric method to more accurately test the BOP for integrity and to shorten the total time of testing.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: March 2, 2021
    Assignee: Vista Precision Solutions, Inc.
    Inventor: Joseph W. Maresca, Jr.
  • Patent number: 10928764
    Abstract: An image heating apparatus includes a cylindrical rotatable member, an exciting coil, a magnetic core, and a resin material layer provided between the exciting coil and the magnetic core. The exciting coil is a metal wire coated with heat-resistant resin. The resin material layer is provided between the exciting coil and the magnetic core and is a layer that is different from the heat-resistant resin of the metal wire. The resin material layer is provided on a surface of the magnetic core in a helical shape along the exciting coil. As viewed in a direction perpendicular to a longitudinal direction of the rotatable member, the exciting coil enters the resin material layer in a radial direction of the exciting coil.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: February 23, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Seiji Obata, Kazuhiko Shinoda, Mitsugu Owada
  • Patent number: 10928761
    Abstract: An image forming apparatus includes a resistive heat generator and a power control device that controls power supplied to the resistive heat generator. The power control device supplies the power at a predetermined power duty cycle for adjustment to the resistive heat generator. The power control device adjusts a power duty cycle when the resistive heat generator is used.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: February 23, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Tomoya Adachi, Yuusuke Furuichi, Yukimichi Someya, Masahiro Samei
  • Patent number: 10908536
    Abstract: A transfer device having a structure for preventing the meandering of a transfer belt, an image forming apparatus including a structure for preventing the meandering of a transfer belt, and a method for preventing meandering of the transfer belt. The image forming apparatus including a main body. The main body including an image forming member and a transfer device which transfers an image formed through the image forming member to a printing medium. The transfer device includes a frame, a driving roller, a backup roller being rotatably supported to the frame, a transfer belt to travel between the driving roller and the backup roller; and meandering prevention members located at both end portions of the backup roller to independently rotate. The meandering prevention members being driven by contact with the transfer belt to control tension of the transfer belt.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: February 2, 2021
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Jin-ho Lee, Ho-Gun You, Jun-Ho Lee
  • Patent number: 10908531
    Abstract: Provided is a powder container having a new structure capable of stable discharge and transport of a powder contained in a container by enabling the powder to be reliably discharged to the outside of the package while preventing the powder from spilling and flying out of the container.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: February 2, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventors: Junichi Matsumoto, Tsukuru Kai, Hiroshi Hosokawa, Makoto Komatsu, Tadashi Hayakawa, Yuzuru Ozawa
  • Patent number: 10901342
    Abstract: A developing device includes an agitating transport device, a density detecting device, and an attracting device. The agitating transport device has a transport path and transports developer including a magnetic carrier while agitating the developer. The density detecting device detects density of the developer in the transport path of the agitating transport device. The attracting device is provided in the agitating transport device and has magnetic poles of one and another polarities exposed to the transport path facing the density detecting device so as to attract the developer by a magnetic force.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: January 26, 2021
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Kiyoshi Sako, Eriko Kokubun