Patents Examined by Quana Grainger
  • Patent number: 11640130
    Abstract: A heating unit includes a board including metal, an insulating layer including insulating material and formed on a surface of the board, a heating element disposed on the insulating layer to generate heat by passing an electric current through the heating element, and a conductive portion electrically connecting the heating element and the board to each other. The heating unit further includes a first power supplying electrode electrically connected to the heating element and a second power supplying electrode electrically connected to the board. The heating element, the conductive portion and the board constitute an electric circuit between the first power supplying electrode and the second power supplying electrode. The heating element generates the heat in a case where the first power supplying electrode and the second power supplying electrode are electrically connected to a power source and the electric current is passed through the electric circuit.
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: May 2, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yusuke Nakashima
  • Patent number: 11624994
    Abstract: A fixing belt includes: a base having an endless shape; and a resin layer covering a surface on an inner peripheral side of the base, the resin layer comprising a resin and a filler, and having a second surface opposite to a first surface facing the base, the second surface having cell structures, and being roughened with the filler. When arithmetic mean roughnesses of the second surface in the central region X and the end regions Y and Z are defined as RaX, RaY and RaZ respectively, a difference between RaX and RaY, a difference between RaY and RaZ, and a difference between RaX and RaZ are all 0.1 ?m or smaller, and a coefficient of variation of areas of the cell structures contained in each of the central region X, and end regions Y and Z is 25% or smaller.
    Type: Grant
    Filed: April 20, 2022
    Date of Patent: April 11, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Noriaki Kobayashi, Akeshi Asaka
  • Patent number: 11624995
    Abstract: An image forming apparatus that is capable of specifying a failed portion while preventing delay of an image forming operation appropriately. An image forming unit forms an image on a recording material. A detection unit detects an abnormality. A controller determines a type of an abnormality detected by the detection unit. The controller controls, in a case where the abnormality is detected by the detection unit, a start timing of failure diagnosis that specifies a failed portion that causes the abnormality according to the determined type of the abnormality.
    Type: Grant
    Filed: November 16, 2020
    Date of Patent: April 11, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Naoto Watanabe
  • Patent number: 11614695
    Abstract: An image forming apparatus includes an optical sensor configured to detect an image formed on an intermediate transfer belt. The optical sensor includes a first light emitting diode (LED), a second LED, a first photodiode (PD), and a second PD on a substrate. The first PD is arranged at a position at which specularly reflected light of light emitted from the first LED can be received, and scattered reflected light of light emitted from the second LED can be received. The second PD is arranged at a position at which scattered reflected light of light emitted from the second LED can be received. A light receiving surface of the first PD and a light receiving surface of the second PD are formed at different angles. The light receiving surface of the first PD has an area that is smaller than an area of the light receiving surface of the second PD.
    Type: Grant
    Filed: August 3, 2021
    Date of Patent: March 28, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventor: Ryuichi Araki
  • Patent number: 11607748
    Abstract: An assembly for rapid manufacturing of symmetrical objects by direct metal deposition is disclosed. A rotary stage provides rotational movement to an object supported by the stage around a central stage axis. Nozzles are spaced above the rotary stage for performing direct metal deposition for building an object supported by the stage. Each nozzle is independently moveable along a horizontal axis and independently pivotable, and combined, moveable along a vertical axis for providing symmetrical movement corresponding to a symmetrical deposition configuration of the object while the object is rotated around the central stage axis.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: March 21, 2023
    Assignee: DM3D Technology, LLC
    Inventors: Bhaskar Dutta, Vijayavel Bagavath-Singh, Mark David Lewan
  • Patent number: 11586134
    Abstract: A fixing device includes an endless fixing belt capable of rotational movement, a pressure roller that presses from the outside of the fixing belt, a nip forming member that is arranged on an inner circumference surface side of the fixing belt and forms a fixing nip region between the fixing belt and the pressure roller, a support member that supports the nip forming member from an opposite side to the fixing nip region, and a slide sheet provided between the fixing belt and the nip forming member. The support member includes two support portions. The slide sheet is fixed between the two support portions.
    Type: Grant
    Filed: June 18, 2021
    Date of Patent: February 21, 2023
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Tomohiro Maeda
  • Patent number: 11556083
    Abstract: A fixing device includes an endless fixing belt capable of rotational movement, a pressure member that presses from the outside of the fixing belt, a nip forming member arranged on the inner circumference surface side of the fixing belt and forms a fixing nip region between the fixing belt and the pressure member, and a support member supporting the nip forming member from the side opposite to the fixing belt. The support member includes a first support portion and a second support portion. The first support portion supports the nip forming member. The second support portion stands from the surface of the first support portion opposite to the nip forming member so that the center portion in the conveying direction of the recording medium is located at the downstream side of the center portion of the fixing nip region in the conveying direction and within the fixing nip region.
    Type: Grant
    Filed: July 19, 2021
    Date of Patent: January 17, 2023
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Tomohiro Maeda
  • Patent number: 11556075
    Abstract: A light emitting device, includes: a base plate extending in a first direction; multiple light emitting units arranged on a surface of the base plate while being shifted from each other in the first direction, and each including a support body extending in the first direction and multiple light sources supported on the support body while being arranged in the first direction; and a flow path disposed over the surface of the base plate to surround at least part of the light emitting units and allowing air to flow therethrough in the first direction.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: January 17, 2023
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Yosuke Kasuya, Tsutomu Otsuka
  • Patent number: 11555893
    Abstract: Disclosed are a laser scanning device, a radar device, and a scanning method thereof. The laser scanning device comprises a scanning prism comprising a plurality of scanning mirror surfaces, wherein the plurality of scanning mirror surfaces rotates about a scanning axis, a normal of each of the scanning mirror surfaces forms a certain angle with respect to the scanning axis, and the angles thereof are not all the same; a transceiving component comprising a laser transmitting unit and a laser receiving unit, wherein the laser transmitting unit generates a scanning line by rotation of the scanning mirror surfaces, and the same laser transmitting unit generates a plurality of scanning lines by rotation of the scanning prism.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: January 17, 2023
    Assignees: HEFEI SURESTAR TECHNOLOGY CO., LTD., BEIJING SURESTAR TECHNOLOGY CO., LTD.
    Inventor: Zhiwu Zhang
  • Patent number: 11543765
    Abstract: A fixing device includes a fixing rotator, a heater, a pressure rotator, a stay, a biasing member fixed to the stay, and a nip formation pad. The nip formation pad is supported by the stay, disposed inside the fixing rotator, and forms a nip. The nip formation pad includes at least one engaged portion at a position other than both ends of the nip formation pad or engaged portions at both ends of the nip formation pad. The at least one engaged portion engages an engaging portion in the stay to generate a first rotational moment. The engaged portions at both ends engage engaging portions in the stay to generate a second rotational moment. Each rotational moment is smaller than a rotational moment generated by engagement between an engaging portion in the stay and an engaged portion at only one end of the nip formation pad.
    Type: Grant
    Filed: November 18, 2021
    Date of Patent: January 3, 2023
    Assignee: RICOH COMPANY, LTD.
    Inventor: Hitoshi Fujiwara
  • Patent number: 11531297
    Abstract: In one embodiment, an image forming apparatus includes a fixing device with a heating element to heat a sheet. A controller is configured to control electric power supplied to the heating element based on a prior use metric. The controller reduces the electric power supplied to the heating element during a startup period if an electric power level supplied from a power supply is equal to or greater than a threshold value and the prior use metric is equal to or greater than a reference value.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: December 20, 2022
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Kazuhiko Kikuchi
  • Patent number: 11526105
    Abstract: A fixing device includes: an annular belt including an elastic layer formed of elastic material and a surface layer formed on a surface of the elastic layer, the annular belt having an internal diameter r [?m]; and a pressing member that makes contact with the surface layer of the annular belt, thereby forming a nip region, wherein t x ยท W r ? 245 ? ? ?m is satisfied, where tx [?m] denotes a thickness of the annular belt and W [?m] denotes a nip width of the nip region in a short-side direction of the nip region, the short-side direction being orthogonal to both a width direction and a thickness direction of the annular belt.
    Type: Grant
    Filed: August 16, 2021
    Date of Patent: December 13, 2022
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Takaaki Furukawa
  • Patent number: 11520263
    Abstract: The heating apparatus including a plurality of heat generation members including first, second and third generation members, the second heat generation member and the third heat generation member having lengths in a longitudinal direction shorter than a length of the first heat generation member, the heating apparatus including first, second, third, and fourth contacts, and a first switching unit configured to bring an electric path between the second contact and the fourth contact into one of a connecting state and an open state.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: December 6, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Nozomu Nakajima, Tomohiro Nakamori
  • Patent number: 11520283
    Abstract: The image forming apparatus includes a cartridge replaceable by detachably mounting to the image forming apparatus, a door that takes a closed state or an open state, a locking pin that switches a state of the regulation unit between a regulating state in which the replacement unit is prevented to be detached from the image forming apparatus and a release state in which the replacement unit is to be detachable from the image forming apparatus, and a lock control unit (a control unit) that makes a determination as to whether or not the state of the regulation unit is to be switched from the release state to the regulating state, at a predetermined timing when initial processing is completed after a power source is turned on or a state of the door becomes the closed state from the open state.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: December 6, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Yoshiteru Kaida
  • Patent number: 11520088
    Abstract: An improved mount assembly for an optical structure, is provided. The mount assembly for the optical structure, comprising an optical structure comprising at least one mirror panel, the mirror panel comprising a reflective surface, a back surface substantially opposite the reflective surface and at least one side surface extending between the reflective and back surfaces, at least one mounting member extending from the optical structure, a housing for receipt therein of at least a portion of the optical structure and all of the mounting member extending from the optical structure, the housing having at least one opening therethrough, and at least one screw received and tightened within the at least one opening such that a first end of the screw presses against and at least partially secures the mounting member within the housing. A method for assembling the same is also provided.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: December 6, 2022
    Assignee: PLX, INC.
    Inventor: Itai Vishnia
  • Patent number: 11507001
    Abstract: An image forming apparatus is operable in a first small-sheet printing in which power is supplied to the first heat generating element and the second heat generating element and in a second small-sheet printing in which power is supplied to the first heat generating element and the third heat generating element. A first power ratio, which is a proportion of power supplied to the first heat generating element to power supplied to the second heat generating element in the first small-sheet printing, is higher than a second power ratio, which is a proportion of power supplied to the first heat generating element to power supplied to the third heat generating element in the second small-sheet printing.
    Type: Grant
    Filed: July 8, 2021
    Date of Patent: November 22, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsuguhiro Yoshida, Kazuhiro Doda, Kohei Wakatsu
  • Patent number: 11507006
    Abstract: A power supply device includes a first circuit and a second circuit. The first circuit includes an adjustment unit, a detection unit, a processing unit including a conversion unit, a first communication unit, and a power storage unit. The second circuit includes a second communication unit performing wireless communication with the first communication unit, and a control unit outputting a carrier wave used in the wireless communication. After outputting the carrier wave during a first period, the control unit stops output of the carrier wave during a second period. During the second period, the conversion unit operates on the power stored in the power storage unit. The control unit outputs the carrier wave during a third period after the second period. During the third period, the processing unit transmits information about a conversion result. The control unit controls the adjustment unit based on the transmitted information.
    Type: Grant
    Filed: June 21, 2021
    Date of Patent: November 22, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hiroki Uzawa
  • Patent number: 11507003
    Abstract: A fixing unit includes a film with a tubular shape, a nip forming unit including a heater and configured to be in sliding contact with an inner surface of the film. The heater includes a substrate made of metal. The fixing unit further includes a power supply connector electrically connected to the power supply electrode so that the power supply connector is connected to the heating element at a first end portion of the substrate in a longitudinal direction of the heater, and a pressing member opposed to the nip forming unit. The fixing unit further includes a voltage application circuit configured to apply a voltage of a same polarity as a normal charging polarity of the toner to the substrate, the voltage application circuit being connected to the substrate at a second end portion of the substrate opposite to the first end portion in the longitudinal direction.
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: November 22, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tatsuya Kinukawa, Sho Taguchi
  • Patent number: 11493876
    Abstract: An assembly for an image forming device includes an electrical connector movable relative to a frame of the image forming device between a retracted position and an extended position. In the retracted position the electrical connector is disengaged from a first corresponding electrical connector of a first replaceable unit and a second corresponding electrical connector of a second replaceable unit when the first and second replaceable units are installed in the image forming device. In the extended position the electrical connector is engaged with the first corresponding electrical connector of the first replaceable unit and the second corresponding electrical connector of the second replaceable unit when the first and second replaceable units are installed in the image forming device.
    Type: Grant
    Filed: April 21, 2021
    Date of Patent: November 8, 2022
    Assignee: Lexmark International, Inc.
    Inventors: Virgil Johnson, Jr., Darren Adam Keese, James Richard Leemhuis
  • Patent number: 11493874
    Abstract: A control circuit of an image forming apparatus outputs a pulse signal. A clock signal generation circuit generates a clock signal, based on the pulse signal. A pulse signal conversion circuit generates a pulse conversion control signal of a voltage value associated with a duty ratio of the pulse signal. An AC voltage generation circuit generates an AC voltage of a frequency based on the clock signal. Either the AC voltage generation circuit or a DC voltage generation circuit generates a voltage whose amplitude or voltage value increases as a voltage value of the received pulse conversion control signal increases, and whose amplitude or voltage value decreases as a voltage value of the pulse conversion control signal decreases.
    Type: Grant
    Filed: June 1, 2021
    Date of Patent: November 8, 2022
    Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventor: Yukihiro Aikawa