Patents by Inventor Yohei Ito

Yohei Ito 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: 11626539
    Abstract: Method for manufacturing semiconductor light-emitting device having a substrate, a metal layer over the substrate, and a semiconductor layer over the metal layer. The semiconductor layer includes a light-emitting layer, and with respect to the light-emitting layer, a first conductivity type layer at a substrate side and a second conductivity type layer opposite the substrate. The second conductivity type layer includes a first layer forming a semiconductor layer surface and a second layer at the substrate side with respect to the first layer.
    Type: Grant
    Filed: January 25, 2022
    Date of Patent: April 11, 2023
    Assignee: ROHM CO., LTD.
    Inventor: Yohei Ito
  • Publication number: 20230020028
    Abstract: An LED board includes a flexible printed circuit and multiple LED-mounted parts arrayed on the circuit board at regular intervals in a constant direction. The LED-mounted parts each include multiple LEDs. The circuit board includes LED portions including the LED-mounted parts and non-LED portions including no LED-mounted parts that are arrayed alternately. The LED-mounted parts each have, in an array direction in which the LED-mounted parts are arrayed, a dimension equal to an interval between adjacent LED-mounted parts of the arrayed LED-mounted parts. A surface emitter includes multiple LED boards fitted together, with LED-mounted parts on each LED board overlapping non-LED portions of an adjacent LED board of the LED boards. The LED board and the surface emitter with the above structures easily upsize a video display device.
    Type: Application
    Filed: January 9, 2020
    Publication date: January 19, 2023
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yohei ITO, Sohei SAMEJIMA, Satoru KIRIDOSHI
  • Publication number: 20220149242
    Abstract: Method for manufacturing semiconductor light-emitting device having a substrate, a metal layer over the substrate, and a semiconductor layer over the metal layer. The semiconductor layer includes a light-emitting layer, and with respect to the light-emitting layer, a first conductivity type layer at a substrate side and a second conductivity type layer opposite the substrate. The second conductivity type layer includes a first layer forming a semiconductor layer surface and a second layer at the substrate side with respect to the first layer.
    Type: Application
    Filed: January 25, 2022
    Publication date: May 12, 2022
    Applicant: ROHM CO., LTD.
    Inventor: Yohei ITO
  • Publication number: 20220105730
    Abstract: A cleaning device includes: a cleaning member that comes into contact with a nozzle surface of a head unit that forms an image on a recording medium by an inkjet head, the cleaning member cleaning an ink remaining on the nozzle surface; a winding part that winds the cleaning member so that an unused part of the cleaning member comes in contact with the nozzle surface; and a hardware processor that controls the winding part to change a winding amount of the cleaning member according to an amount of ink to be cleaned by the cleaning member.
    Type: Application
    Filed: October 1, 2021
    Publication date: April 7, 2022
    Inventors: Yohei ITO, Hiroyuki TOKIMATSU
  • Patent number: 11271139
    Abstract: There is provided a semiconductor light emitting device, including: a first electrode; a substrate formed over the first electrode; a metal layer formed over the substrate; a semiconductor layer formed over the metal layer and including a light-emitting layer, a first conductivity type layer disposed at a substrate side with respect to the light-emitting layer and a second conductivity type layer disposed at an opposite side to the substrate with respect to the light-emitting layer; and a second electrode formed over the second conductivity type layer.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: March 8, 2022
    Assignee: ROHM CO., LTD.
    Inventor: Yohei Ito
  • Publication number: 20210379896
    Abstract: An inkjet recording apparatus includes an inkjet head that ejects ink from a nozzle; and a cloth wipe unit that includes a woven cloth that wipes a nozzle surface in which an ejecting opening of the nozzle of the inkjet head is open. The ink attached to the nozzle surface is wiped by a relative sliding movement between the woven cloth and the nozzle surface. A mountain portion formed on a surface by a thread passing above a crossed thread of the woven cloth rubs against all of the ejecting openings during the sliding.
    Type: Application
    Filed: May 26, 2021
    Publication date: December 9, 2021
    Inventor: Yohei ITO
  • Publication number: 20210140512
    Abstract: A metal belt manufacturing method includes: a step of inserting a retention member (30, 130) in an ended band shape into a clearance between an outer peripheral surface (12) of a ring (10) and an inner surface of a visor portion (23) which faces a base portion (21) in a recessed portion (25) and disposing the retention member (30, 130) circumferentially along the outer peripheral surface (12) of the ring (10); and a step of coupling the starting end portion and the terminal end portion of the retention member (30, 130) in an ended band shape to each other.
    Type: Application
    Filed: March 29, 2017
    Publication date: May 13, 2021
    Applicant: AISIN AW CO., LTD.
    Inventors: Hiroyuki OHATA, Yohei ITO
  • Patent number: 10804438
    Abstract: A semiconductor light-emitting device includes a semiconductor layer, having a major surface and generating light, a light transmitting layer, having alight transmitting property and covering the major surface of the semiconductor layer, a light reflecting layer, having a light reflecting property and covering the light transmitting layer, and a bonding material diffusion region, formed in a surface layer portion of the light reflecting layer in a boundary portion between the light transmitting layer and the light reflecting layer and having an element having a property of being high in adhesion force with respect to the light transmitting layer more so than an element constituting the light reflecting layer.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: October 13, 2020
    Assignee: ROHM CO., LTD.
    Inventor: Yohei Ito
  • Publication number: 20200276819
    Abstract: An inkjet recording apparatus includes an ink ejection head that includes an ink ejector with a nozzle to which ink is supplied, a hardware processor that causes the ink ejector to perform an ejecting action of ejecting ink from the nozzle and/or an projecting action of projecting ink from an opening of the nozzle, and a wiping unit that performs a wiping action of wiping a nozzle opening surface of the ink ejection head, the opening of the nozzle being formed on the nozzle opening surface. The hardware processor controls an operation of the ink ejector so as to cause the ink ejector to perform the ejecting action and/or the projecting action at a timing according to a wiping position of the wiping unit during the wiping action of the wiping unit.
    Type: Application
    Filed: February 25, 2020
    Publication date: September 3, 2020
    Inventor: Yohei ITO
  • Publication number: 20200274030
    Abstract: An electrode structure includes: an indium tin oxide (ITO) electrode that includes ITO; an Al electrode that includes Al and covers the ITO electrode; and a barrier electrode that includes at least one of TiN and Cr and is interposed in a region between the ITO electrode and the Al electrode.
    Type: Application
    Filed: January 10, 2020
    Publication date: August 27, 2020
    Applicant: ROHM CO., LTD.
    Inventors: Ryosuke ISHIMARU, Yohei ITO, Yasuo NAKANISHI
  • Patent number: 10757352
    Abstract: According to one embodiment, a solid-state imaging device includes a substrate, a light receiving pixel, a first interconnection layer, a light shielding layer, and a first metal film. The substrate includes a sensor region and a circuit region. The light receiving pixel is provided on a surface of the sensor region of the substrate. The first interconnection layer is provided in the sensor region. The light shielding layer is provided in the sensor region and has a larger width than the first interconnection. The first metal film is provided on at least one of an upper surface or a lower surface of the light shielding layer. The first metal film partially covers at least one of the upper surface or the lower surface.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: August 25, 2020
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
    Inventors: Yohei Ito, Yasushi Itabashi
  • Patent number: 10689517
    Abstract: A color material dispersion liquid comprising: (A) a color material, (B) a dispersant and (C) a solvent, wherein the color material (A) contains a lake color material of a combination of an acid dye and a polyaluminum chloride; a basicity of the polyaluminum chloride is 70% or more; and a value of a ratio (I4/I6) between an integral value (I4) of a peak corresponding to a four-coordinate aluminum in a solid-state 27Al-NMR spectrum of the lake color material and an integral value (I6) a peak corresponding to a six-coordinate aluminum therein, is from 0 to 0.50.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: June 23, 2020
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Michihiro Ogura, Tomoki Murata, Fumiyasu Murakami, Daisuke Endo, Yohei Ito
  • Publication number: 20200119230
    Abstract: There is provided a semiconductor light emitting device, including: a first electrode; a substrate formed over the first electrode; a metal layer formed over the substrate; a semiconductor layer formed over the metal layer and including a light-emitting layer, a first conductivity type layer disposed at a substrate side with respect to the light-emitting layer and a second conductivity type layer disposed at an opposite side to the substrate with respect to the light-emitting layer; and a second electrode formed over the second conductivity type layer.
    Type: Application
    Filed: October 9, 2019
    Publication date: April 16, 2020
    Applicant: ROHM CO., LTD.
    Inventor: Yohei ITO
  • Publication number: 20190335125
    Abstract: According to one embodiment, a solid-state imaging device includes a substrate, a light receiving pixel, a first interconnection layer, a light shielding layer, and a first metal film. The substrate includes a sensor region and a circuit region. The light receiving pixel is provided on a surface of the sensor region of the substrate. The first interconnection layer is provided in the sensor region. The light shielding layer is provided in the sensor region and has a larger width than the first interconnection. The first metal film is provided on at least one of an upper surface or a lower surface of the light shielding layer. The first metal film partially covers at least one of the upper surface or the lower surface.
    Type: Application
    Filed: September 12, 2018
    Publication date: October 31, 2019
    Inventors: Yohei Ito, Yasushi Itabashi
  • Publication number: 20190168351
    Abstract: Provided is a method for manufacturing an endless metal ring for a continuously variable transmission using a transmission belt formed by binding a plurality of elements with the ring. A tubular body is cut into a plurality of ring bodies, and under tension, the ring body is rotated in a circumferential direction, and a grinding wheel is pressed against a lateral end of the ring body from an outer toward an inner peripheral side of the ring body to remove an edge portion on the outer peripheral side of the lateral end of the ring body formed by the cutting, and a grinding wheel is pressed against the lateral end of the ring body from the inner toward the outer peripheral side of the ring body to remove an edge portion on the inner peripheral side of the lateral end of the ring body formed by the cutting.
    Type: Application
    Filed: September 28, 2017
    Publication date: June 6, 2019
    Applicant: AISIN AW CO., LTD.
    Inventors: Takashi OBAYASHI, Yohei ITO
  • Publication number: 20190160585
    Abstract: In a method for cleaning a portion to be welded in which a first portion (Pa) to be welded and a second portion (Pb) to be welded, which are to be joined by butt welding, are cleaned, the first and second portions (Pa, Ph) to be welded are cleaned before the butt welding by injecting, with the first and second portions (Pa, Pb) to be welded abutting on each other, plasma produced from a gas containing oxygen into a groove between the first portion (Pa) to be welded and the second portion Pb) to be welded.
    Type: Application
    Filed: September 29, 2017
    Publication date: May 30, 2019
    Applicant: AISIN AW CO., LTD.
    Inventors: Yohei ITO, Masahiko KATSUDA
  • Publication number: 20190115502
    Abstract: A semiconductor light-emitting device includes a semiconductor layer, having a major surface and generating light, a light transmitting layer, having alight transmitting property and covering the major surface of the semiconductor layer, a light reflecting layer, having a light reflecting property and covering the light transmitting layer, and a bonding material diffusion region, formed in a surface layer portion of the light reflecting layer in a boundary portion between the light transmitting layer and the light reflecting layer and having an element having a property of being high in adhesion force with respect to the light transmitting layer more so than an element constituting the light reflecting layer.
    Type: Application
    Filed: October 15, 2018
    Publication date: April 18, 2019
    Inventor: Yohei ITO
  • Patent number: 10234812
    Abstract: A transport member, that transports a developer by rotating in a rotation direction that is predetermined around a rotation axis, includes: a shaft part including the rotation axis; and a blade part spirally provided on an outer peripheral surface of the shaft part, wherein the blade part includes a transport surface that is a surface facing a downstream side in a transport direction of the developer along the rotation axis, and a non-transport surface that is a surface other than the transport surface, and the transport member further includes a fin protruding from the non-transport surface of the blade part, the fin being provided with an interval from the outer peripheral surface of the shaft part.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: March 19, 2019
    Assignee: Konica Minolta, Inc.
    Inventors: Toshiaki Shima, Yohei Ito, Kazuyoshi Ota, Hiroaki Umemoto
  • Patent number: 10185270
    Abstract: An image forming apparatus includes an image former which forms an image on an image carrying member with toner stored in a storage, a toner supplier which supplies toner to the storage by driving a conveyance member, a density measurer which causes the image former to form an image having a predetermined density at a predetermined timing and measures density of the formed image, a corrector which corrects a driving amount of the conveyance member based on the density measured by the density measurer, and a changer which changes a timing when the density measurer measures the density in response to an event that a predetermined condition is satisfied.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: January 22, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Masanori Kawada, Hiroaki Umemoto, Yohei Ito, Toshiaki Shima, Kazuyoshi Ota, Shinya Tokutake, Hidetoshi Noguchi, Shinichi Yoshimoto, Futoshi Okazaki
  • Patent number: 10164154
    Abstract: The present invention provides a semiconductor light emitting device with a simple structure and capable of improving light extraction efficiency. The semiconductor light emitting device 1 includes a substrate 2, a metal layer 3 on the substrate 2, a light-transmitting conductive layer 4 on the metal layer 3, an insulation layer 30 on the light-transmitting conductive layer 4, and a III-V semiconductor structure 5 on the insulation layer 30. The III-V semiconductor structure 5 includes a light emitting layer 8, a p-type semiconductor layer 9, and an n-type semiconductor layer 10. A refractive index n1 of a p-type GaP contact layer 11 of the p-type semiconductor layer 9, a refractive index n2 of the insulation layer 30, and a refractive index n3 of the light-transmitting conductive layer 4 satisfy the relation: n1>n2<n3.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: December 25, 2018
    Assignee: ROHM CO., LTD.
    Inventors: Yohei Ito, Yoichi Mugino