Patents Examined by Michael A Harrison
  • Patent number: 11029633
    Abstract: A fixing device includes a fixing belt stretched taut around a plurality of supports, a pressure rotator to form a fixing nip between the fixing belt and the pressure rotator, a belt polishing mechanism to polish the fixing belt. The belt polishing mechanism includes a polishing roller to separably contact the fixing belt and slide over the surface of the fixing belt when the polishing roller is pressed against the fixing belt, a contact and separation driver to press and separate the polishing roller to and from the fixing belt, an opposed member disposed opposite the polishing roller via the fixing belt and configured to form a polishing nip with the fixing belt, and a polishing roller rotation mechanism to rotate the polishing roller. The polishing roller rotation mechanism includes a first rotator disposed coaxially with the polishing roller and a second rotator disposed coaxially with the opposed member.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: June 8, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventor: Daisuke Arai
  • Patent number: 11029631
    Abstract: A heating device includes a cylindrical film, a heater arranged inside the cylindrical film and extending along a longitudinal direction of the cylindrical film, a heat conductor extending along the longitudinal direction, and a first grease layer between the heater and the heat conductor and having a consistency grade less than or equal to three.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: June 8, 2021
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Ryota Saeki
  • Patent number: 11022912
    Abstract: In a cartridge, a housing has a developer accommodating portion and includes a first side wall and a second side wall. A coupling member is disposed at a position opposite to the developer accommodating portion with respect to the first side wall. A detection body is disposed at a position opposite to the developer accommodating portion with respect to the second side wall. A first driving force transmission member is positioned at the same side with the coupling member with respect to the first side wall, and transmits driving force from the coupling member to a rotating member. A second driving force transmission member is positioned at the same side with the detection body with respect to the second side wall, and transmits driving force from the rotating member to the detection body.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: June 1, 2021
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Nao Itabashi, Naoya Kamimura
  • Patent number: 11022930
    Abstract: An image forming apparatus set (200) includes an image forming apparatus (100) and a mounting base (3) on which the image forming apparatus (100) is placed. The mounting base (3) includes a locking mechanism (R). When the image forming apparatus (100) is placed at a first position in the mounting base (3), the locking mechanism (R) restricts movement of the image forming apparatus (100) relative to the mounting base (3). The locking mechanism (R) includes a first locking mechanism (4) and a second locking mechanism (R2). The first locking mechanism (4) restricts movement of the image forming apparatus (100) in a first direction (D1) relative to the mounting base (3). The second locking mechanism (R2) restricts movement of the image forming apparatus (100) in a second direction (D2) relative to the mounting base (3). The second direction (D2) is opposite to the first direction (D1).
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: June 1, 2021
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Chien Danh Nguyen
  • Patent number: 11016425
    Abstract: In a case where an image formed on a recording material includes a contiguous image portion formed across a plurality of heating regions at a given density, power supplied to a plurality of heating elements that heat the plurality of heating regions is controlled by correcting respective control heating amounts of the plurality of heating regions set in accordance with respective maximum densities of image regions resulting from dividing the image into the plurality of heating regions, so that a difference between a maximum value and a minimum value of the control heating amounts among the plurality of heating regions in which the image portion is heated from among the plurality of heating regions, lies within a predetermined range.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: May 25, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoto Tsuchihashi, Hideaki Yonekubo
  • Patent number: 11016422
    Abstract: An attachment is attached to a holding shaft and includes a first hollow axial portion including a first slit that receives the holding shaft. A supplemental member includes a second hollow axial portion including a second slit that receives the holding shaft. The supplemental member rotates in a forward direction and a backward direction. A restrictor restricts rotation of the supplemental member in the forward direction and the backward direction in a state in which the first slit and the second slit receive the holding shaft.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: May 25, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshiharu Takahashi, Hiroshi Kajiyama
  • Patent number: 11009811
    Abstract: An image forming apparatus includes a chassis having an opening, a cover, photosensitive members, an intermediate transfer belt, a primary-transfer member, a secondary-transfer roller, a cleaner device, an external-sheet inlet, a waste toner container, a connector, and a conveying roller, which is arranged within the feeding path to feed the recording sheet inserted through the external-sheet inlet in the feeding path. The conveying roller is mounted on the waste toner container and removable from the chassis along with the waste toner container.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: May 18, 2021
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Shougo Sato
  • Patent number: 11009559
    Abstract: An insertion determination unit (16) for precisely calculating a ground insulation resistance component of a leakage current regardless of the presence or absence of an inverter determines whether an inverter (3) is inserted between a commercial power system (2) and a three-phase motor (5). A resistance component leakage current calculation unit (18) calculates a ground insulation resistance component of a leakage current on the basis of a calculation procedure corresponding to the result of the above determination.
    Type: Grant
    Filed: February 19, 2018
    Date of Patent: May 18, 2021
    Assignee: OMRON Corporation
    Inventors: Takuya Fukudome, Tsuyoshi Takeuchi, Koji Yokota, Tomohiro Yamada
  • Patent number: 11002799
    Abstract: A method of evaluating a power storage device includes at least [a] to [f] below. [a] A power storage device is prepared. [b] A charge level of the power storage device is adjusted to produce a first potential difference between a positive electrode and a negative electrode. [c] The positive electrode or the negative electrode is selected as a reference electrode. [d] After the charge level is adjusted, an operation to insert a conductive rod-shaped member into a stack portion along a direction of stack of the positive electrode and the negative electrode is performed while a second potential difference between the reference electrode and the rod-shaped member is measured. [e] The rod-shaped member is stopped. [f] The power storage device is evaluated based on a state of the power storage device after the rod-shaped member is stopped.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: May 11, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kensaku Miyazawa, Shinichi Hamasaki, Yuya Ishihara, Tetsuya Kaneko
  • Patent number: 11003117
    Abstract: A temperature control device controls a temperature of a temperature control target to which heat is propagated from a heater by supplying power to the heater. The temperature control device includes processing circuitry that acquires a temperature measurement result of the temperature control target from a temperature sensor. The processing circuitry estimates an input voltage being supplied to the heater based on an energization time of the heater and a change in the temperature of the temperature control target during the energization time. The processing circuitry generates a temperature estimation result by estimating the temperature of the temperature control target based on a previous energization pulse used to control energization of the heater and the input voltage. The processing circuitry outputs the energization pulse to control the power supplied to the heater based on the temperature estimation result and the temperature measurement result.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: May 11, 2021
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Hiroshi Ota
  • Patent number: 11003116
    Abstract: A fixing unit includes a rotary member, a magnetic core, a coil, a converter device, a temperature detection unit, and a controller. A conductive layer of the rotary member is heated by induction heating. The controller causes the converter device to output a cyclic waveform in which a first waveform and a second waveform appear. The first waveform is a waveform in which pulses having a constant cycle are successively output for a first output period and output of the pulses is paused for a first pause period after the first output period. The second waveform is a waveform in which the first waveform is repeatedly output for a second output period and output of the first waveform is paused for a second pause period after the second output period. The cyclic waveform is a waveform in which the second waveform is cyclically repeated as a repetition unit.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: May 11, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventor: Aoji Isono
  • Patent number: 10996598
    Abstract: At least an electrode of a first electrode group and at least an electrode of a second electrode group are formed in a region nearer to one edge portion of a substrate than to a center of the substrate in a longer-side direction of the substrate, and the electrode that is nearest to the second electrode group in the longer-side direction among the first electrode group formed in the region nearer to the one edge portion and the second electrode group are provided with a space between the electrode and the second electrode group.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: May 4, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazushi Nishikata, Ryota Ogura, Takafumi Suzuki, Seiji Obata, Koichi Yamada
  • Patent number: 10989756
    Abstract: The disclosure provides for systems and methods which utilize an optical scattering microscope with a spatiotemporal approach to measure the nature and extent of energy flow across electronic or semiconductor materials.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: April 27, 2021
    Assignee: The Regents of the University of California
    Inventors: Naomi S. Ginsberg, Milan Edouard Delor
  • Patent number: 10989764
    Abstract: The invention relates to a method and a device (10) for localizing an insulation fault in an operating electrical equipment (8) connected to a power supply system (2). Fundamental function blocks of the invention are an electric monitoring device (12), which identifies an insulation fault and communicates a respective fault time to an identifying device (16) via a communication channel (14), said identifying device (16) identifying a faulty operating electrical equipment (8) by electrical equipment of a turning-on/-off signal progress characteristic to the particular operating electrical equipment (8).
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: April 27, 2021
    Assignee: BENDER GMBH & CO. KG
    Inventors: Dirk Pieler, Joachim Wagner
  • Patent number: 10976695
    Abstract: An image heating apparatus includes a frame having first and second side plates. A cylindrical film is provided between the side plates, and a heater contacts an inner surface of the film. A roller forms a nip in cooperation with the heater through the film, and an image, formed on a recording material, is heated by heat of the heater, while moving in the nip. A holder holds the heater, and is provided in an inside space of the film. With respect to a longitudinal direction, a length of the holder is greater than a distance between the side plates. In addition, a stay, formed of metal, reinforces the holder, and is provided in the inside space of the film. A length of the stay is greater than the distance between the side plates, and a position of the stay with respect to the longitudinal direction is determined by the holder.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: April 13, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Noriaki Tanaka, Yoshinori Hashimoto
  • Patent number: 10969711
    Abstract: An electrophotographic belt whose surface barely peels off even after long-term repeated use is provided. The electrophotographic belt includes a layer including a thermoplastic resin composition containing a thermally melt kneaded product including a thermoplastic polyester resin, an ionic electro-conductive agent having a sulfonimide structure as an anion, and an amide compound having at least two amide groups in one molecule.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: April 6, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Hiroomi Kojima
  • Patent number: 10969737
    Abstract: An image forming apparatus includes a controller configured to, before driving a development motor, obtain a temperature inside a housing from a temperature sensor, determine whether the obtained temperature inside the housing is equal to or lower than a particular temperature, when determining that the temperature inside the housing is higher than the particular temperature, execute a full-speed mode to control the development motor to rotate at a first target speed and control a process motor to rotate at a second target speed, and when determining that the temperature inside the housing is equal to or lower than the particular temperature, execute a low-temperature mode to control the development motor to rotate at a third target speed lower than the first target speed and control the process motor to rotate at the second target speed that is the same as in the full-speed mode.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: April 6, 2021
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Kotaro Haruta, Masahito Saeki, Shintaro Sakaguchi
  • Patent number: 10955372
    Abstract: An equipment-monitoring system having a resistive sensor designed for two- or four-terminal sensing of damage thereto caused by an environmental exposure. In an example embodiment, the resistive sensor comprises a sense resistor susceptible to the environmental exposure and a reference resistor protected from the environmental exposure, the sense and reference resistors being internally connected to four terminals of the sensor in a manner that enables external bridge-type measurements of the electrical resistance of the sense resistor. In some embodiments, the sense resistor comprises a relatively large number of flat metal stripes connected in parallel to one another between two of the four terminals, which advantageously provides an extended dynamic range of the damage detectable with the corresponding sensor and improves the sensor reliability.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: March 23, 2021
    Assignee: Nokia Technologies Oy
    Inventor: Chen Xu
  • Patent number: 10948851
    Abstract: An image forming apparatus may include a developing device including a developing roller and a coupling rotatable both in a first direction and in a second direction opposite to the first direction, a coupler engageable with the coupling, a motor configured to drive the coupler, the motor configured to cause the coupler to be a first state in which the coupling rotates in the second direction and a second state in which the coupling rotates in the first direction, and a controller configured to transfer, to the motor, an instruction for changing the coupler to the second state, in a case where the controller judges that the remaining toner amount in a developing chamber of the developing device is smaller than or equal to the first predetermined value.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: March 16, 2021
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Takashi Shimizu, Keita Shimizu, Yasuo Fukamachi, Kazutoshi Nakamura, Kasuma Hinoue
  • Patent number: 10921732
    Abstract: In a cartridge, a housing has a developer accommodating portion and includes a first side wall and a second side wall. A coupling member is disposed at a position opposite to the developer accommodating portion with respect to the first side wall. A detection body is disposed at a position opposite to the developer accommodating portion with respect to the second side wall. A first driving force transmission member is positioned at the same side with the coupling member with respect to the first side wall, and transmits driving force from the coupling member to a rotating member. A second driving force transmission member is positioned at the same side with the detection body with respect to the second side wall, and transmits driving force from the rotating member to the detection body.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: February 16, 2021
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Nao Itabashi, Naoya Kamimura