Patents by Inventor Junichi Yokoyama

Junichi Yokoyama 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).

  • Publication number: 20240145983
    Abstract: A harness-side connector 2 includes: a connector body 11 connected to a unit-side connector of a hydraulic unit 1; and a slide lock 12 supported by the connector body 11 to be slidable in the upper-lower direction. A sealing clip 3 is attached to the hydraulic unit 1 and the like in the locked state by moving upward while being restricted form movement in a direction intersecting the upper-lower direction. A first claw 29 of the sealing clip 3 is engaged with reinforcing ribs 8 of the hydraulic unit 1, so that the downward movement of the sealing clip 3 with respect to the hydraulic unit 1 and the like is restricted. The contact plate 15 of the sealing clip 3 contacts the slide lock 12 from below, so that the downward movement of the slide lock 12 with respect to the connector body 11 is restricted.
    Type: Application
    Filed: March 2, 2022
    Publication date: May 2, 2024
    Inventors: Yuho KIMURA, Takuma MIZUTANI, Junichi YOKOYAMA
  • Patent number: 11943977
    Abstract: A display device includes: a display region formed with a notch portion; and a frame region surrounding the display region, wherein the display region includes a first lead wiring line and a second lead wiring line. In a plan view, an extending direction of the first lead wiring line and an extending direction of the second lead wiring line are same. Either one lead wiring line of the first lead wiring line and the second lead wiring line includes a first region a second region.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: March 26, 2024
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Junichi Yamada, Makoto Yokoyama, Yasushi Kubota
  • Patent number: 11942040
    Abstract: In a display device having a non-rectangular display unit, occurrence of a difference in luminance between a region with a high load and a region with a low load is suppressed. A region inside the display unit is segmented into a high-load region with a high load on horizontal scanning lines (an initialization control line and a write control line) and a low-load region with a low load on horizontal scanning lines. An initialization control line and a write control line that are disposed in the high-load region are driven by a discharge driver and a scan driver, respectively. An initialization control line and a write control line that are disposed in the low-load region both are driven by, for example, the discharge driver.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: March 26, 2024
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Makoto Yokoyama, Nobuyuki Taya, Junichi Yamada
  • Patent number: 11865964
    Abstract: An optical apparatus capable of correcting field curvature easily, a method for manufacturing the optical apparatus, and a headlight including the optical apparatus. A lens, a plurality of solid-state light sources, and a substrate on which the solid-state light sources are mounted. The substrate includes a base material, which is rigid, and a mount surface, which is formed on the base material in a curved surface shape that substantially matches a focal plane shape of the lens, and on which a circuit pattern is formed. The solid-state light sources are mounted on the mount surface, and the substrate is positioned with respect to the lens such that a position of a focal plane of the lens substantially coincides with emission surfaces of the solid-state light sources, and thus field curvature can be easily corrected.
    Type: Grant
    Filed: March 4, 2021
    Date of Patent: January 9, 2024
    Assignee: MAXELL, LTD.
    Inventors: Tsuyoshi Maro, Atsushi Yusa, Naoki Hiratoge, Junichi Yokoyama
  • Publication number: 20230139866
    Abstract: An optical apparatus capable of correcting field curvature easily, a method for manufacturing the optical apparatus, and a headlight including the optical apparatus. A lens, a plurality of solid-state light sources, and a substrate on which the solid-state light sources are mounted. The substrate includes a base material, which is rigid, and a mount surface, which is formed on the base material in a curved surface shape that substantially matches a focal plane shape of the lens, and on which a circuit pattern is formed.
    Type: Application
    Filed: March 4, 2021
    Publication date: May 4, 2023
    Applicant: MAXELL, LTD.
    Inventors: Tsuyoshi MARO, Atsushi YUSA, Naoki HIRATOGE, Junichi YOKOYAMA
  • Publication number: 20230075081
    Abstract: Provided is an anti-vibration device which includes a shake correction unit, the anti-vibration device including a first vibration detector that is disposed in the shake correction unit, a second vibration detector that is disposed outside the shake correction unit, and a processor. The processor performs anti-vibration control based on a first output value output from the first vibration detector and a second output value output from the second vibration detector.
    Type: Application
    Filed: November 16, 2022
    Publication date: March 9, 2023
    Inventors: Masaki ARAI, Junichi YOKOYAMA, Koichi NAGATA
  • Publication number: 20220252897
    Abstract: An optical device which includes an optical system includes a sensor that detects vibration on the optical device, an anti-vibration mechanism that includes a drive source driven based on a result of detection performed by the sensor, a fixation mechanism that fixes a position of the anti-vibration mechanism by coming into contact with a specific portion of the anti-vibration mechanism, and a processor that performs control with respect to the drive source such that interference between the specific portion and the fixation mechanism does not occur while the fixation mechanism is switching from one of a fixation state, in which the fixation mechanism fixes the position of the anti-vibration mechanism, and a release state, in which the fixation state of the fixation mechanism is released, to the other of the fixation state and the release state.
    Type: Application
    Filed: April 26, 2022
    Publication date: August 11, 2022
    Inventors: Masaki ARAI, Junichi YOKOYAMA
  • Patent number: 10574150
    Abstract: A power conversion apparatus includes: a board; a first electronic component disposed on a first surface of the board; and a temperature sensor disposed on a second surface of the board which is opposite to the first surface. The power conversion apparatus may further include a first heat conductive member disposed between the first electronic component and the temperature sensor.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: February 25, 2020
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Yasunori Yamanaka, Junichi Yokoyama, Satoru Kawano
  • Patent number: 10021815
    Abstract: A power conversion apparatus includes: a casing that houses an electronic component; a heat sink where the casing is installed, the heat sink dissipating a heat from the electronic component; a substrate disposed on an opposite side of the heat sink in the casing, the substrate including a power converter circuit; a pressing member housed in the casing, the pressing member pressing the electronic component to the heat sink side; and an insulating cover member included in the casing, the insulating cover covering at least a part of the substrate side of the pressing member.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: July 10, 2018
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Yasunori Yamanaka, Takatoshi Koura, Junichi Yokoyama
  • Publication number: 20170150640
    Abstract: A power conversion apparatus includes: a casing that houses an electronic component; a heat sink where the casing is installed, the heat sink dissipating a heat from the electronic component; a substrate disposed on an opposite side of the heat sink in the casing, the substrate including a power converter circuit; a pressing member housed in the casing, the pressing member pressing the electronic component to the heat sink side; and an insulating cover member included in the casing, the insulating cover covering at least a part of the substrate side of the pressing member.
    Type: Application
    Filed: November 8, 2016
    Publication date: May 25, 2017
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Yasunori YAMANAKA, Takatoshi KOURA, Junichi YOKOYAMA
  • Patent number: 9651205
    Abstract: A lighting device has a reflection sheet; an LED having an optical element arranged at a predetermined distant position away from the reflection sheet and being used for emitting light in a direction in parallel with a light emitting surface of the lighting device in a space between the reflection sheet and the optical element; and an optical sheet provided on the light emitting surface side of the optical element. A light shielding pattern is provided at a position corresponding to the LED on the light emitting surface side of the optical element, and the light shielding pattern is configured by stacking a plurality of light shielding layers in which the light shielding layer positioned closest to the optical element side is made of a white ink, and in which at least one of the other light shielding layers is made of a mixed color ink.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: May 16, 2017
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Shoji Yamamoto, Satoshi Ouchi, Junichi Yokoyama
  • Publication number: 20160359317
    Abstract: A power conversion apparatus includes: a board; a first electronic component disposed on a first surface of the board; and a temperature sensor disposed on a second surface of the board which is opposite to the first surface. The power conversion apparatus may further include a first heat conductive member disposed between the first electronic component and the temperature sensor.
    Type: Application
    Filed: June 3, 2016
    Publication date: December 8, 2016
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Yasunori YAMANAKA, Junichi YOKOYAMA, Satoru KAWANO
  • Patent number: 9372387
    Abstract: A laser projector includes a laser light source to emit laser light modulated in accordance with image information, a scanner to drive the laser light along two axes in horizontal and vertical directions and make scanning two-dimensionally with the laser light, a scanning mirror drive part to produce a drive signal of the scanner, a light source data conversion part to change arrangement in a horizontal direction of data applied to the laser light source and a timing generation part to synchronize the scanning mirror drive part with the light source data conversion part, and a start direction of laser scanning in the horizontal direction is changed every frame of the image information.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: June 21, 2016
    Assignee: Hitachi Consumer Electronics Co., Ltd.
    Inventors: Yoshiho Seo, Tomoki Kobori, Satoshi Ouchi, Koji Hirata, Junichi Yokoyama, Hidehiro Ikeda, Masayuki Fukui, Masahiko Yatsu, Tatsuya Ishikawa
  • Publication number: 20150176773
    Abstract: A lighting device has a reflection sheet; an LED having an optical element arranged at a predetermined distant position away from the reflection sheet and being used for emitting light in a direction in parallel with a light emitting surface of the lighting device in a space between the reflection sheet and the optical element; and an optical sheet provided on the light emitting surface side of the optical element. A light shielding pattern is provided at a position corresponding to the LED on the light emitting surface side of the optical element, and the light shielding pattern is configured by stacking a plurality of light shielding layers in which the light shielding layer positioned closest to the optical element side is made of a white ink, and in which at least one of the other light shielding layers is made of a mixed color ink.
    Type: Application
    Filed: July 25, 2012
    Publication date: June 25, 2015
    Inventors: Shoji Yamamoto, Satoshi Ouchi, Junichi Yokoyama
  • Patent number: 8766964
    Abstract: Provided is an image display device including: a pixel circuit; a power supply line; a data line for supplying a data signal to the pixel circuit; and a current path control unit. The pixel circuit includes: a light emitting element; a drive transistor for controlling a current flowing to the light emitting element; a storage capacitor provided between the data line and a gate electrode of the drive transistor, for storing a potential difference; and a data line connection switch for connecting one end of the storage capacitor on the gate electrode side of the drive transistor and the data line. Before the data line supplies the data signal, the data line connection switch is turned ON, and the current path control unit interrupts a current path from the power supply line to the one end of the storage capacitor.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: July 1, 2014
    Assignees: Japan Display Inc., Canon Kabushiki Kaisha
    Inventors: Shoji Yamamoto, Junichi Yokoyama, Masahisa Tsukahara
  • Patent number: 8345034
    Abstract: A circuit configuration for realizing high impedance in an address drive circuit is provided in order to reduce the number of recovery switches without reducing power recovery efficiency. A mechanism for realizing the high impedance in an address drive circuit during a sustain period of a plasma display panel is provided. By achieving the high impedance, capacitance coupling between an X electrode and an address electrode and between a Y electrode and an address electrode can be cancelled, and a power recovery circuit can be simplified without reducing the power recovery efficiency.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: January 1, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Tomoyuki Fukuda, Nobuaki Kabuto, Junichi Yokoyama, Hisafumi Imura
  • Publication number: 20120139969
    Abstract: An image display device includes plural pixel circuits each of which includes a light emitting element where an amount of light emission changes corresponding to an amount of current and a drive transistor which controls the amount of current which flows to the light emitting element based on a display signal, a data line drive circuit which supplies a display signal to the plural pixel circuits respectively based on image data, a power source part which outputs a light-emitting potential, and a current amount prediction part which calculates an amount of current which flows to the plural pixel circuits from the power source part based on the image data. The power source part performs a control for suppressing fluctuation of the light-emitting potential based on the calculated amount of current and the outputted light-emitting potential.
    Type: Application
    Filed: December 1, 2011
    Publication date: June 7, 2012
    Inventors: Junichi YOKOYAMA, Masahisa Tsukahara, Hajime Akimoto
  • Patent number: 8187760
    Abstract: A fuel-cell system is advantageous for repressing water from flowing backward from a reservoir to a condenser, flowing backward which results from the inside of the condenser being turned into negative pressure. The fuel-cell system has a fuel cell for generating electric power by reactant gas, a condenser for generating condensed water by condensing water content included in the reactant gas to be supplied to the fuel cell or in off gas of the reactant gas, and a reservoir for reserving the condensed water collected at the condenser. A drain valve is disposed between the condenser and the reservoir. The drain valve is switchable between a closed state in which communication between the condenser and the reservoir is shut off and an opened state in which the condenser is communicated with the reservoir to discharge the water in the condenser to the reservoir. A controller carries out inner-pressure increment and drain controls for opening the drain valve after increasing inner pressure in the condenser.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: May 29, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Junichi Yokoyama
  • Publication number: 20120105502
    Abstract: Provided is an image display device capable of dynamically controlling the D-V characteristics of a display panel while suppressing fluctuation in characteristic for each display panel. The display panel has a panel display portion including a red pixel, a green pixel, and a blue pixel. A storage unit stores V-L characteristic data measured in advance of RGB. A D-L calculation unit calculates D-L characteristic data of RGB based on the display setting values stored in a register. A D-V calculation unit calculates D-V characteristic data of RGB based on the V-L characteristic data stored in the storage unit and the D-L characteristic data calculated by the D-L calculation unit. A DAC generates a driving voltage corresponding to a video signal input from a timing controller based on the D-V characteristic data calculated by the D-V calculation unit and applies the driving voltage to each pixel.
    Type: Application
    Filed: October 27, 2011
    Publication date: May 3, 2012
    Inventors: Junichi YOKOYAMA, Masami Iseki, Fujio Kawano
  • Patent number: D1020690
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: April 2, 2024
    Assignee: KYOCERA CORPORATION
    Inventors: Takahiro Watanabe, Junichi Yokoyama