Patents by Inventor Yasunori Shimada

Yasunori Shimada 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: 11676840
    Abstract: A transferring method includes providing an adsorption device, using the adsorption device to attract and hold a plurality of light emitting diodes (LEDs), providing a target substrate with a plurality of spots of anisotropic conductive adhesive on a surface of the target substrate; moving the adsorption device or the target substrate wherein each of the plurality of LEDs adsorbed by the adsorption device becomes in contact with one of the plurality of spots of anisotropic conductive adhesive; and curing the plurality of spots of anisotropic conductive adhesive on the target substrate and moving away the adsorption device.
    Type: Grant
    Filed: February 21, 2022
    Date of Patent: June 13, 2023
    Assignee: Century Technology (Shenzhen) Corporation Limited
    Inventors: Po-Liang Chen, Yung-Fu Lin, Hirohisa Tanaka, Yasunori Shimada
  • Patent number: 11676839
    Abstract: A method for making an adsorption device includes: providing and etching a substrate to form a plurality of receiving grooves spaced apart from each other; forming a magnetic film in each of the plurality of receiving grooves; and forming a magnet in each of the plurality of receiving grooves. Each receiving groove includes a bottom wall and a side wall coupling the bottom wall. The magnetic film covers the bottom wall and the side wall of each of receiving groove.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: June 13, 2023
    Assignee: Century Technology (Shenzhen) Corporation Limited
    Inventors: Po-Liang Chen, Yung-Fu Lin, Hirohisa Tanaka, Yasunori Shimada
  • Patent number: 11521878
    Abstract: An adsorption device includes a substrate and a magnetic film on a surface of the substrate. The substrate has magnetic properties and is capable of generating magnetic field. The magnetic film partially covers the surface. The magnetic film generates a magnetic field having a direction that is opposite to a direction of the magnetic field generated by the substrate. Portions of the surface of the substrate not covered by the magnetic film form positions to attract and adsorb target objects, and other portion of the surface of the substrate covered by the magnetic film is not able to attract any target object.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: December 6, 2022
    Assignee: Century Technology (Shenzhen) Corporation Limited
    Inventors: Po-Liang Chen, Yung-Fu Lin, Hirohisa Tanaka, Yasunori Shimada
  • Patent number: 11498779
    Abstract: A device to attract and hold microscopic items such as micro LEDs magnetically rather than by static electricity includes a substrate and a plurality of magnetic units on a surface of the substrate. The magnetic units are spaced apart from each other and are constrained in the size and direction of their individual magnetic fields. Each of the magnetic units includes a magnet and a cladding layer partially covering the magnet. The cladding layer is made of a magnetic material. A side of the magnet away from the substrate is exposed from the cladding layer to attract and hold one micro LED.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: November 15, 2022
    Assignee: Century Technology (Shenzhen) Corporation Limited
    Inventors: Po-Liang Chen, Yung-Fu Lin, Hirohisa Tanaka, Yasunori Shimada
  • Publication number: 20220172970
    Abstract: A transferring method includes providing an adsorption device, using the adsorption device to attract and hold a plurality of light emitting diodes (LEDs), providing a target substrate with a plurality of spots of anisotropic conductive adhesive on a surface of the target substrate; moving the adsorption device or the target substrate wherein each of the plurality of LEDs adsorbed by the adsorption device becomes in contact with one of the plurality of spots of anisotropic conductive adhesive; and curing the plurality of spots of anisotropic conductive adhesive on the target substrate and moving away the adsorption device.
    Type: Application
    Filed: February 21, 2022
    Publication date: June 2, 2022
    Inventors: PO-LIANG CHEN, YUNG-FU LIN, HIROHISA TANAKA, YASUNORI SHIMADA
  • Patent number: 11295971
    Abstract: An adsorption device includes a magnetic plate and a limiting layer. A surface of the magnetic plate includes a first region and a plurality of second regions spaced apart from each other. The first region and each second region do not overlap with each other. The first region forms a magnetic pole of the magnetic plate, and each second region forms the opposite magnetic pole of the magnetic plate. The limiting layer covers the first region. Each second region is exposed to the limiting layer and configured for adsorbing a small-scale LED as a target object.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: April 5, 2022
    Assignee: Century Technology (Shenzhen) Corporation Limited
    Inventors: Po-Liang Chen, Yung-Fu Lin, Hirohisa Tanaka, Yasunori Shimada
  • Publication number: 20210398832
    Abstract: A method for making an adsorption device includes: providing and etching a substrate to form a plurality of receiving grooves spaced apart from each other; forming a magnetic film in each of the plurality of receiving grooves; and forming a magnet in each of the plurality of receiving grooves. Each receiving groove includes a bottom wall and a side wall coupling the bottom wall. The magnetic film covers the bottom wall and the side wall of each of receiving groove.
    Type: Application
    Filed: August 31, 2021
    Publication date: December 23, 2021
    Inventors: PO-LIANG CHEN, YUNG-FU LIN, HIROHISA TANAKA, YASUNORI SHIMADA
  • Patent number: 11139187
    Abstract: An adsorption device includes a substrate, a plurality of magnetic films, and a plurality of magnets. The substrate defines a plurality of receiving grooves spaced apart from each other. Each receiving groove defines a bottom wall and a side wall. Each magnetic film is in one receiving groove and covers the bottom wall and the side wall. The magnetic films are made of magnetic material. Each magnet is in one receiving groove. Each magnetic film is between the substrate and one magnet, a large number of magnetized LEDs of very small size are attracted on a one-to-one basis to the receiving grooves for transfer and placement of the LEDs onto a display panel which is in the course of being manufactured.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: October 5, 2021
    Assignee: Century Technology (Shenzhen) Corporation Limited
    Inventors: Po-Liang Chen, Yung-Fu Lin, Hirohisa Tanaka, Yasunori Shimada
  • Publication number: 20210002087
    Abstract: A device to attract and hold microscopic items such as micro LEDs magnetically rather than by static electricity includes a substrate and a plurality of magnetic units on a surface of the substrate. The magnetic units are spaced apart from each other and are constrained in the size and direction of their individual magnetic fields. Each of the magnetic units includes a magnet and a cladding layer partially covering the magnet. The cladding layer is made of a magnetic material. A side of the magnet away from the substrate is exposed from the cladding layer to attract and hold one micro LED.
    Type: Application
    Filed: August 21, 2019
    Publication date: January 7, 2021
    Inventors: PO-LIANG CHEN, YUNG-FU LIN, HIROHISA TANAKA, YASUNORI SHIMADA
  • Publication number: 20210005490
    Abstract: An adsorption device includes a substrate and a magnetic film on a surface of the substrate. The substrate has magnetic properties and is capable of generating magnetic field. The magnetic film partially covers the surface. The magnetic film generates a magnetic field having a direction that is opposite to a direction of the magnetic field generated by the substrate. Portions of the surface of the substrate not covered by the magnetic film form positions to attract and adsorb target objects, and other portion of the surface of the substrate covered by the magnetic film is not able to attract any target object.
    Type: Application
    Filed: August 22, 2019
    Publication date: January 7, 2021
    Inventors: PO-LIANG CHEN, YUNG-FU LIN, HIROHISA TANAKA, YASUNORI SHIMADA
  • Publication number: 20210005488
    Abstract: An adsorption device includes a substrate, a plurality of magnetic films, and a plurality of magnets. The substrate defines a plurality of receiving grooves spaced apart from each other. Each receiving groove defines a bottom wall and a side wall. Each magnetic film is in one receiving groove and covers the bottom wall and the side wall. The magnetic films are made of magnetic material. Each magnet is in one receiving groove. Each magnetic film is between the substrate and one magnet, a large number of magnetized LEDs of very small size are attracted on a one-to-one basis to the receiving grooves for transfer and placement of the LEDs onto a display panel which is in the course of being manufactured.
    Type: Application
    Filed: August 22, 2019
    Publication date: January 7, 2021
    Inventors: PO-LIANG CHEN, YUNG-FU LIN, HIROHISA TANAKA, YASUNORI SHIMADA
  • Publication number: 20210005489
    Abstract: An adsorption device includes a magnetic plate and a limiting layer. A surface of the magnetic plate includes a first region and a plurality of second regions spaced apart from each other. The first region and each second region do not overlap with each other. The first region forms a magnetic pole of the magnetic plate, and each second region forms the opposite magnetic pole of the magnetic plate. The limiting layer covers the first region. Each second region is exposed to the limiting layer and configured for adsorbing a small-scale LED as a target object.
    Type: Application
    Filed: August 22, 2019
    Publication date: January 7, 2021
    Inventors: PO-LIANG CHEN, YUNG-FU LIN, HIROHISA TANAKA, YASUNORI SHIMADA
  • Patent number: 6424399
    Abstract: A reflection type liquid crystal display apparatus includes: a first substrate having a plurality of reflecting electrodes; a second substrate having a light transmitting electrode; and a liquid crystal layer disposed between the first substrate and the second substrate. The first substrate includes an insulating substrate, a switching device provided on the insulating substrate for supplying a display voltage signal to the reflecting electrode, a drawing-out electrode connected to the switching device and extending under the reflecting electrode, and an insulating resin layer having a contact hole on the drawing-out electrode. The reflecting electrode is provided on the insulating resin layer, corresponding to each pixel, so as to cover the contact hole, and is electrically connected to the drawing-out electrode at the bottom of the contact hole.
    Type: Grant
    Filed: May 26, 1999
    Date of Patent: July 23, 2002
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasunori Shimada, Hisakazu Nakamura, Koji Taniguchi
  • Patent number: 6097459
    Abstract: A reflection type liquid crystal display comprises a first substrate including a rough portion formed on a surface thereof and a reflection electrode formed on the rough portion; a second substrate including a counter electrode formed thereon; and a liquid crystal layer interposed between the first and second substrates, driven by the reflection electrode and the counter electrode to perform a display. The reflection electrode is made of aluminum or aluminum alloy, and the reflection electrode includes surface oxidation layer having at least 5 nm thickness. The first substrate includes a vertical alignment film made of insulating material formed on the surface oxidation layer of the reflection electrode.
    Type: Grant
    Filed: June 24, 1998
    Date of Patent: August 1, 2000
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasunori Shimada, Seiichi Mitsui
  • Patent number: 6064456
    Abstract: The present invention provides a process for manufacturing a reflection-type liquid crystal display apparatus. The method includes the steps of: forming scanning lines, signal lines, a thin film transistor and a connector electrode on a substrate; forming a photosensitive resin film covering at least the connector electrode, and forming a reflection electrode film on the photosensitive resin film and other portions; removing a portion of the reflection electrode film located at least on the connector electrode, and patterning the reflection electrode film so that the pixel electrode resides in the display region; and removing a portion of the photosensitive resin film located on the connector electrode to reveal the connector electrode.
    Type: Grant
    Filed: June 16, 1998
    Date of Patent: May 16, 2000
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Koji Taniguchi, Toru Matano, Yasunori Shimada
  • Patent number: 5949507
    Abstract: A reflection type liquid crystal display apparatus includes: a first substrate having a plurality of reflecting electrodes; a second substrate having a light transmitting electrode; and a liquid crystal layer disposed between the first substrate and the second substrate. The first substrate includes an insulating substrate, a switching device provided on the insulating substrate for supplying a display voltage signal to the reflecting electrode, a drawing-out electrode connected to the switching device and extending under the reflecting electrode, and an insulating resin layer having a contact hole on the drawing-out electrode. The reflecting electrode is provided on the insulating resin layer, corresponding to each pixel, so as to cover the contact hole, and is electrically connected to the drawing-out electrode at the bottom of the contact hole.
    Type: Grant
    Filed: November 27, 1996
    Date of Patent: September 7, 1999
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasunori Shimada, Hisakazu Nakamura, Koji Taniguchi
  • Patent number: 5805252
    Abstract: A reflection type liquid crystal display comprises a first substrate including a rough portion formed on a surface thereof and a reflection electrode formed on the rough portion; a second substrate including a counter electrode formed thereon; and a liquid crystal layer interposed between the first and second substrates, driven by the reflection electrode and the counter electrode to perform a display. The reflection electrode is made of aluminum or aluminum alloy, and the reflection electrode includes surface oxidation layer having at least 5 nm thickness. The first substrate includes a vertical alignment film made of insulating material formed on the surface oxidation layer of the reflection electrode.
    Type: Grant
    Filed: September 28, 1995
    Date of Patent: September 8, 1998
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasunori Shimada, Seiichi Mitsui
  • Patent number: 5734458
    Abstract: A display apparatus having high reliability of display which can be manufactured at a low cost with high yield of production by simplified processes, of mounting drive circuits, wherein input terminals for the display signals and shorting members can be easily connected; a plurality of drive circuits which drive a display section are formed on a non-single crystal insulator substrate and mounted on a substrate via an anisotropic conductor film; and through-holes of the data lines or the scan lines and through-holes of the signal lines for the input of image signals from an external circuit are arranged parallel to the direction of arrangement of the drive circuit. This arrangement makes it possible to connect the data line and the scan line to a short ring, which is provided at an end of the substrate, without the wiring strips crossing each other.
    Type: Grant
    Filed: August 11, 1994
    Date of Patent: March 31, 1998
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Katsumasa Ikubo, Yasunori Shimada
  • Patent number: 5672251
    Abstract: The method for producing a metallic wiring board of this invention comprises the steps of: implanting nitrogen on a surface of a substrate; forming a metallic film including, as a main component, one of Ta and Nb on the surface of the substrate where nitrogen is implanted by a sputtering method to form a metallic wiring by patterning the metallic film; and forming an insulating film by anodic oxidation of a surface of the metallic wiring. In the step of forming a metallic wiring form Ta or Nb on a substrate or a protective layer including nitrogen to anodic-oxidize the surface of the metallic wiring, Ta ions or Nb ions do not enter the substrate. Further, the substrate or a protective layer is doped with nitrogen, and a Ta layer is formed by the sputtering method thereon. The sputtering method has a characteristic that a material contained in the substrate is mixed into a film formed in the initial stage of the coating. Therefore, the doped nitrogen enters the Ta film, and a thin .alpha.
    Type: Grant
    Filed: March 23, 1995
    Date of Patent: September 30, 1997
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masahito Goto, Hiroshi Morimoto, Yasunori Shimada, Takayoshi Nagayasu, Mitsuaki Hirata, Yoshitaka Hibino, Tomohiko Yamamoto
  • Patent number: 5594259
    Abstract: A semiconductor device includes an insulating substrate; and an electrode wiring provided on an area of the insulating substrate. The electrode wiring is formed of a material selected from the group consisting of an alloy of Ta and Nb, Nb, and a metal mainly including Nb. A method for producing a semiconductor device includes the steps of forming a layer including Nb doped with nitrogen on an insulating substrate by a sputtering method in an atmosphere of an inert gas including nitrogen, and then patterning the layer to form an electrode wiring on an area of the insulating substrate; and forming an oxide film at a portion of the electrode wiring by anodization, the portion including at least a surface thereof.
    Type: Grant
    Filed: November 9, 1994
    Date of Patent: January 14, 1997
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasunori Shimada, Masahito Goto, Hisashi Saito, Koji Taniguchi