Patents by Inventor Kenji Okada

Kenji Okada 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).

  • Patent number: 11515118
    Abstract: Provided is an electron beam irradiation apparatus including: an aligner configured to perform an alignment of an electron beam by deflecting the electron beam; a deflector having a plurality of electrodes and configured to deflect the electron beam after passing through the aligner; and an adjuster configured to adjust deflection caused by the aligner, wherein the adjuster is configured to perform, on each of the plurality of electrodes, detecting an image of the electron beam by applying a test voltage to one of the plurality of electrodes and applying a reference voltage to the other electrodes, determine a position shift of the electron beam based on each position of the image of the electron beam corresponding to each electrode, and adjust deflection of the aligner so as to cancel the position shift of the electron beam.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: November 29, 2022
    Assignee: EBARA CORPORATION
    Inventors: Kenji Watanabe, Shinichi Okada, Ryo Tajima, Tsutomu Karimata
  • Patent number: 11496125
    Abstract: A driver circuit controls a first switch element. A first resistor is connected between the driver circuit and the first switch element. A second switch element is connected to the first switch element. An overcurrent detector circuit controls the second switch element based on an overcurrent current flowing through the first switch element. A second resistor is connected between the overcurrent detector circuit and the second switch element. The first and second resistor is set such that a turn-off time of the first switch element when the second switch element is turned on by the overcurrent detector circuit is longer than a turn-off time of the first switch element when the first switch element is turned off by the driver circuit.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: November 8, 2022
    Assignee: OMRON CORPORATION
    Inventors: Wataru Okada, Satoshi Iwai, Noriyuki Nosaka, Takeo Nishikawa, Kenji Kobayashi, Keiji Shiraishi
  • Publication number: 20220307917
    Abstract: A temperature sensor includes: a thermistor; a pair of lead-out wires each having a front end connected to the thermistor; a glass body for sealing the thermistor and the front ends of the lead-out wires; a pair of leadwires each having a front end connected to the rear end of each of the pair of lead-out wires; and a synthetic resin covering layer for covering the glass body, the pair of lead-out wires excepting the front end portions, and the front end portions of the pair of lead wires. The covering layer shaped as a tube is arranged by: elastically expanding a laminate of a tubular inner layer and a tubular outer layer so as to be fitted forcibly onto the glass body, the pair of lead-out wires excepting the front end portions, and the front end portions of the pair of lead wires; and applying heat to melt the inner layer and to shrink the outer layer. The peripheral surface of the glass body is brought into a direct contact with the outer layer without the inner layer interposed.
    Type: Application
    Filed: November 27, 2020
    Publication date: September 29, 2022
    Applicant: OHIZUMI MFG. CO., LTD.
    Inventors: Kenji TOBISHIMA, Hiromi OKADA, Yuji TAKANO
  • Patent number: 11408741
    Abstract: A self-localization estimation device includes: a map-information acquisition unit that acquires map information including lane information for specifying lanes in which vehicles are enabled to travel; a position calculation unit that calculates an own-vehicle absolute position being an absolute position of an own vehicle in response to navigation signals received from a plurality of navigation satellites, the position calculation unit including a self-location measurement unit, a vehicle-momentum measurement unit, and dead reckoning unit; and a position estimation unit that estimates, based on the map information and the own-vehicle absolute position, a corrected own-vehicle position being a corrected position of the own vehicle. The position estimation unit estimates the corrected own-vehicle position by superimposing a reliability of the map information and a reliability of the own-vehicle absolute position on each other.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: August 9, 2022
    Assignee: DENSO CORPORATION
    Inventors: Kenji Miyake, Yuichi Minamiguchi, Kenta Takahashi, Minoru Okada, Kazuyoshi Isaji, Tatsumi Sugiyama
  • Publication number: 20220228194
    Abstract: In an example of an embodiment, a first sample set is prepared that includes a test sample prepared from a first subject sample and a reagent, and at least one control sample prepared from at least one of a positive control and a negative control, and a second sample set is prepared that includes a test sample prepared from a second subject sample and a reagent and does not contain at least one of the control samples contained in the first sample set. The nucleic acid amplification in the first sample set is measured in the first unit, the nucleic acid amplification in the second sample set is measured in the second unit, and the measurement result of each test sample contained in the first sample set and second sample set is analyzed based on the measurement result of the control sample contained in at least the first sample set.
    Type: Application
    Filed: January 14, 2022
    Publication date: July 21, 2022
    Applicant: SYSMEX CORPORATION
    Inventors: Masahiro MIURA, Kenji AKAMA, Masaaki KAWAI, Masaya OKADA, Kentaro SHIRAI, Yuichiro YOSHIDA, Tasuku YOTORIYAMA, Michitaka NOTOYA, Soichi OUE
  • Publication number: 20220216741
    Abstract: A cylindrical part of a rotor for an eddy current deceleration device of the present embodiment has a chemical composition consisting of, by mass %, C: 0.05 to 0.15%, Si: 0.10 to 0.40%, Mn: 0.50 to 1.00%, P: 0.030% or less, S: 0.030% or less, Mo: 0.20 to 1.00%, Nb: 0.020 to 0.060%, V: 0.040 to 0.080%, sol. Al: 0.030 to 0.100%, B: 0.0005 to 0.0050%, N: 0.003 to 0.010%, Cu: 0 to 0.20%, Ni: 0 to 0.20%, Cr: 0 to 0.10%, and the balance: Fe and impurities, and in which the total area fraction of martensite and bainite in a microstructure is more than 95.0%, and the number density of carbides having an equivalent circular diameter of 100 to 500 nm is 0.35 to 0.75 particles/?m2.
    Type: Application
    Filed: April 21, 2020
    Publication date: July 7, 2022
    Inventors: Nao OTAKI, Hirokazu OKADA, Yasutaka NOGUCHI, Kenji IMANISHI, Masahiro TASAKA
  • Patent number: 11371414
    Abstract: Provided is an exhaust system for an engine in which a fastening force of a fastener hardly decreases. An exhaust system for an engine includes: an exhaust passage component of ferrous metal; and a fastener that fastens the exhaust passage component to other parts, the exhaust passage component including a pressure receiving surface that receives a fastening force of the fastener. The oxide film of triiron tetraoxide is formed on the pressure receiving surface of the exhaust passage component. It is preferable that the oxide film of triiron tetraoxide be also formed on an outer surface other than the pressure receiving surface of the exhaust passage component. It is preferable that the oxide film of triiron tetraoxide be also formed on an inner surface of the exhaust passage component.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: June 28, 2022
    Assignee: KUBOTA CORPORATION
    Inventors: Hiroki Oso, Nobuyoshi Okada, Hideyuki Koyama, Yoshinori Tanaka, Kenji Okamoto
  • Publication number: 20220131434
    Abstract: An electric tool includes a motor. The motor includes a stator core and a rotor. The rotor rotates with respect to the stator core. The rotor includes: a rotor core having a circular cylindrical shape; a plurality of permanent magnets; and an output shaft. The output shaft is held inside the rotor core. The plurality of permanent magnets are arranged as spokes around a center of the rotor core.
    Type: Application
    Filed: November 21, 2019
    Publication date: April 28, 2022
    Inventors: Mitsumasa MIZUNO, Akito NAKAMURA, Koichiro ESAKA, Kenji OKADA
  • Publication number: 20220123610
    Abstract: An electric tool includes a motor. The motor includes a stator core and a rotor. The rotor has an output shaft and rotates with respect to the stator core. The stator core includes: an inner cylindrical portion having a circular cylindrical shape; and a plurality of teeth. Inside the inner cylindrical portion, the rotor is arranged. Each of the plurality of teeth includes a body portion and a tip piece. The body portion protrudes outward from the inner cylindrical portion along a radius of the inner cylindrical portion. The tip piece extends, from a tip part of the body portion, in a direction intersecting with a direction in which the body portion protrudes.
    Type: Application
    Filed: November 21, 2019
    Publication date: April 21, 2022
    Inventors: Koichiro ESAKA, Akito NAKAMURA, Kenji OKADA, Mitsumasa MIZUNO
  • Patent number: 11286196
    Abstract: An optical fiber manufacturing method includes: coating an outer periphery of a bare optical fiber with a resin before curing by a coating device; and curing the resin with a coating curing device. The following equations are satisfied: t×sin ?>T1× tan ? and ?=tan?1 (d/L), where T1 is a tension in the upstream of the coating device, t is the shear force applied to the bare optical fiber by the resin, d is the design maximum value of a deviation amount of an entry position of the bare optical fiber into the resin in the coating device with respect to the center axis of the die hole of the coating device, and L is the contact length between the resin and the bare optical fiber in the coating device along the center axis.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: March 29, 2022
    Assignee: FUJIKURA LTD.
    Inventor: Kenji Okada
  • Patent number: 11242701
    Abstract: Provided is a vehicle door lock device having a structure enabling easy mounting of a pivot lever and urging means configured to urge the pivot lever to pivot. The urging means locked to a base member and the pivot lever does not generate an urging force when the pivot lever is positioned at an outside position at which the pivot lever is positioned on one direction side with respect to an in-operation pivoting range, and when the pivot lever pivots from the outside position to the in-operation pivoting range, an elastic deformation piece climbs over a temporary stopper while being elastically deformed, and the urging means locked to the base member and the pivot lever is elastically deformed to generate the urging force.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: February 8, 2022
    Assignee: AISIN CORPORATION
    Inventors: Makoto Suzumura, Kenji Okada, Toru Kanazawa, Yasuhiko Sono
  • Patent number: 11099345
    Abstract: A method of winding an optical fiber includes winding the optical fiber using a bobbin that includes: a body portion having two end portions; and a pair of flanges, respectively disposed at the end portions in an axial direction of the body portion. An inner surface of each of the flanges is inclined toward an outer side in the axial direction and toward a radial outer side. The method further includes guiding the optical fiber to the bobbin using a final pulley. The bobbin and the final pulley reciprocate relative to each other in the axial direction at a traverse speed V (mm/sec) such that 0.0050?? (rad)?0.1000, where ? is a delay angle, ?=arctan (V/L), and L (mm) is a distance from a winding position of the optical fiber at the bobbin to the final pulley in a radial direction.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: August 24, 2021
    Assignee: Fujikura Ltd.
    Inventor: Kenji Okada
  • Publication number: 20210045510
    Abstract: A hybrid frame sleeve case for a portable electronic device is disclosed herein. The portable electronic device may be a laptop computer, a tablet, or another portable electronic device. The case may include flexible panels, such as neoprene or fabric panels, attached to an elastic polymer frame, such as ethylene vinyl acetate (EVA). The elastic polymer frame extends around a perimeter of the sleeve to provide cushioning or padding for the side edges of the sleeve. A magnetic latch or other latch may be used to secure an opening on one side of the sleeve. The case may optionally include a charging system that allows the portable electronic device to be charged while housed in the case or otherwise positioned to allow charging by the charging system.
    Type: Application
    Filed: November 3, 2020
    Publication date: February 18, 2021
    Applicant: Incase Designs Corp.
    Inventors: Kenji Okada, Hyun Hong, Dominique Velasco Fonacier, Kevin I-Feng Fang
  • Patent number: 10913225
    Abstract: A method of manufacturing an optical fiber, in which a coating is provided on a bare optical fiber, includes winding the optical fiber around a bobbin such that a strain sensing coefficient T?/KL is greater than 0 and less than or equal to 973, and a one-layer strain ?n is greater than or equal to 0.01.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: February 9, 2021
    Assignee: Fujikura Ltd.
    Inventor: Kenji Okada
  • Patent number: 10895706
    Abstract: A method of manufacturing an optical fiber, in which a coating is provided on a bare optical fiber, includes winding the optical fiber around a bobbin such that a strain relaxation coefficient T?/K is less than or equal to 292, and an one-layer strain ?n is greater than or equal to 0.01.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: January 19, 2021
    Assignee: Fujikura Ltd.
    Inventor: Kenji Okada
  • Patent number: 10857746
    Abstract: A method of manufacturing an optical fiber of the invention includes: preparing one or more direction changers; drawing the bare optical fiber from an optical fiber preform; providing a coated layer on a periphery of the bare optical fiber; obtaining an optical fiber by curing the coated layer; changing the direction of the bare optical fiber at the position between the bare-optical-fiber formation position and the coated-layer provision position; detecting the position of the bare optical fiber in at least one of the direction changers; and adjusting the introduction flow rate of the fluid into the direction changer based on positional information obtained by the detection.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: December 8, 2020
    Assignee: FUJIKURA LTD.
    Inventor: Kenji Okada
  • Patent number: 10824202
    Abstract: Disclosed is a battery sleeve case for a portable electronic device (e.g., laptop computer or electronic tablet device) that includes an elastic polymer frame structure that extends around a perimeter of the sleeve to provide cushioning or padding to the sides of the device. Front and back face side panels are attached to opposing sides of the frame structure, via stitching or some other suitable means. The frame structure may be formed of injected molded ethylene vinyl acetate (EVA) or other suitable material. The side panels may be laminated with fabric, with a front face side panel being flexible and cushioned and including one or more access flaps. The back face side panel includes a rechargeable battery housed within a battery compartment defined by a semi rigid outer panel, which may be formed of compression molded EVA or other suitable material. The rechargeable battery is electrically coupled to external and internal electrical interfaces.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: November 3, 2020
    Assignee: INCASE DESIGNS CORP.
    Inventors: Kenji Okada, Hyun Hong, Dominique Velasco Fonacier, Kevin I-Feng Fang
  • Publication number: 20200290919
    Abstract: An optical fiber manufacturing method includes: coating an outer periphery of a bare optical fiber with a resin before curing by a coating device; and curing the resin with a coating curing device. The following equations are satisfied: t×sin ?>T1× tan ? and ?=tan?1 (d/L), where T1 is a tension in the upstream of the coating device, t is the shear force applied to the bare optical fiber by the resin, d is the design maximum value of a deviation amount of an entry position of the bare optical fiber into the resin in the coating device with respect to the center axis of the die hole of the coating device, and L is the contact length between the resin and the bare optical fiber in the coating device along the center axis.
    Type: Application
    Filed: March 6, 2020
    Publication date: September 17, 2020
    Applicant: Fujikura Ltd.
    Inventor: Kenji Okada
  • Patent number: 10745314
    Abstract: A method of manufacturing an optical fiber of the invention includes: preparing a direction changer; drawing a bare optical fiber from an optical fiber preform, thereby forming the bare optical fiber; providing a coated layer made of a resin on a periphery of the bare optical fiber; obtaining an optical fiber by curing the coated layer; changing a direction of the bare optical fiber by use of the direction changer; measuring a drawing velocity of the optical fiber; and adjusting a length of the bare optical fiber from a drawing unit to a coating unit by controlling a position of the direction changer based on a measurement value of the drawing velocity, the drawing unit forming the bare optical fiber, the coating unit providing the coated layer on the periphery of the bare optical fiber.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: August 18, 2020
    Assignee: FUJIKURA LTD.
    Inventor: Kenji Okada
  • Patent number: 10626041
    Abstract: A control device which is used in a manufacturing apparatus of an optical fiber, the manufacturing apparatus including a drawing unit and a coating unit. The control device includes: one or a plurality of non-contact holding portions which hold the bare optical fiber at any position between the drawing unit and the coating unit; a position detection unit; and a control unit which controls a flow rate of a fluid introduced into the non-contact holding portion on the basis of the floating position detected by the position detection unit. The non-contact holding portion comprises a guide groove. The control unit detects the floating position of the bare optical fiber at at least one of the non-contact holding portions, compares the detected floating position with a predetermined reference floating position, and controls a flow rate of the fluid introduced into the non-contact holding portions.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: April 21, 2020
    Assignee: FUJIKURA LTD.
    Inventor: Kenji Okada