Patents by Inventor Kouhei Takahashi

Kouhei Takahashi 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: 10281333
    Abstract: An infrared sensor is formed in such a manner that an infrared receiver and a base substrate are spaced with a beam made of a thin-film phononic crystal in which through holes are arranged periodically. The beam made of a phononic crystal is formed in such a manner that a period P of through holes increases at arbitrary intervals in a direction from the infrared receiver toward the base substrate.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: May 7, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kouhei Takahashi, Takashi Kawasaki, Yasuyuki Naito, Morio Tomiyama
  • Publication number: 20180061928
    Abstract: An OLED display panel is provided which can control the problem of shedding even in high definition panels. Metal wiring 5 which conducts with an earth line of a flexible printed substrate 15i provided on a substrate 1. A display area 2 comprised from a plurality of OLED elements is provided at the center of the substrate 1 and four low resistance metal turns 3 are provided along each of four edges of the display area 2 on a surface of insulation films 8, 10 at the periphery of the display area 2.
    Type: Application
    Filed: October 31, 2017
    Publication date: March 1, 2018
    Inventors: Kouhei TAKAHASHI, Hirotsugu SAKAMOTO, Takeshi OOKAWARA, Toshihiro SATO
  • Patent number: 9871092
    Abstract: A display device includes contact holes opened in an insulating film outside of a display area in which pixels are arranged, and having a conductive film exposed in bottom portions, a first metal film formed to cover the contact holes and come in contact with the conductive film of the bottom portions, and a transparent conductive film formed on the first metal film.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: January 16, 2018
    Assignee: Japan Display Inc.
    Inventors: Takeshi Ookawara, Toshihiro Sato, Hiroshi Oooka, Kouhei Takahashi
  • Publication number: 20170356806
    Abstract: An infrared sensor is formed in such a manner that an infrared receiver and a base substrate are spaced with a beam made of a thin-film phononic crystal in which through holes are arranged periodically. The beam made of a phononic crystal is formed in such a manner that a period P of through holes increases at arbitrary intervals in a direction from the infrared receiver toward the base substrate.
    Type: Application
    Filed: April 26, 2017
    Publication date: December 14, 2017
    Inventors: KOUHEI TAKAHASHI, TAKASHI KAWASAKI, YASUYUKI NAITO, MORIO TOMIYAMA
  • Patent number: 9831299
    Abstract: An OLED display panel is provided which can control the problem of shedding even in high definition panels. Metal wiring 5 which conducts with an earth line of a flexible printed substrate 15 is provided on a substrate 1. A display area 2 comprised from a plurality of OLED elements is provided at the center of the substrate 1 and four low resistance metal films 3 are provided along each of four edges of the display area 2 on a surface of insulation films 8, 10 at the periphery of the display area 2. Among these, one low resistance metal film 3 conducts with the metal wiring 5 via a contact 3a.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: November 28, 2017
    Assignee: Japan Display Inc.
    Inventors: Kouhei Takahashi, Hirotsugu Sakamoto, Takeshi Ookawara, Toshihiro Sato
  • Publication number: 20170162645
    Abstract: A display device includes contact holes opened in an insulating film outside of a display area in which pixels are arranged, and having a conductive film exposed in bottom portions, a first metal film formed to cover the contact holes and come in contact with the conductive film of the bottom portions, and a transparent conductive film formed on the first metal film.
    Type: Application
    Filed: February 15, 2017
    Publication date: June 8, 2017
    Inventors: Takeshi OOKAWARA, Toshihiro SATO, Hiroshi OOOKA, Kouhei TAKAHASHI
  • Patent number: 9634080
    Abstract: A display device includes contact holes opened in an insulating film outside of a display area in which pixels are arranged, and having a conductive film exposed in bottom portions, a first metal film formed to cover the contact holes and come in contact with the conductive film of the bottom portions, and a transparent conductive film formed on the first metal film.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: April 25, 2017
    Assignee: Japan Display Inc.
    Inventors: Takeshi Ookawara, Toshihiro Sato, Hiroshi Oooka, Kouhei Takahashi
  • Patent number: 9608045
    Abstract: A display device includes a first substrate, an organic EL layer formed on the first substrate and curved in each pixel, and color filters disposed in the respective pixels, and curved to match the organic EL layer. With this configuration, a change in the chromaticity and brightness of the display device depending on a viewing angle of a user is reduced.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: March 28, 2017
    Assignee: Japan Display Inc.
    Inventors: Yuko Matsumoto, Masahiko Suzuki, Hiroshi Oooka, Takeshi Ookawara, Kouhei Takahashi
  • Patent number: 9525018
    Abstract: An OLED display panel is provided which can control the problem of shedding even in high definition panels. Metal wiring 5 which conducts with an earth line of a flexible printed substrate 15 is provided on a substrate 1. A display area 2 comprised from a plurality of OLED elements is provided at the center of the substrate 1 and four low resistance metal films 3 are provided along each of four edges of the display area 2 on a surface of insulation films 8, 10 at the periphery of the display area 2. Among these, one low resistance metal film 3 conducts with the metal wiring 5 via a contact 3a.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: December 20, 2016
    Assignee: Japan Display Inc.
    Inventors: Kouhei Takahashi, Hirotsugu Sakamoto, Takeshi Ookawara, Toshihiro Sato
  • Publication number: 20160358996
    Abstract: OLED display panel is provided which can control the problem of shedding even in high definition panels. Metal wiring 5 which conducts with an earth line of a flexible printed substrate 15 is provided on a substrate 1. A display area 2 comprised from a plurality of OLED elements is provided at the center of the substrate 1 and four low resistance metal films 3 are provided along each of four edges of the display area 2 on a surface of insulation films 8, 10 at the periphery of the display area 2. Among these, one low resistance metal film 3 conducts with the metal wiring 5 via a contact 3a.
    Type: Application
    Filed: August 23, 2016
    Publication date: December 8, 2016
    Inventors: Kouhei TAKAHASHI, Hirotsugu SAKAMOTO, Takeshi OOKAWARA, Toshihiro SATO
  • Publication number: 20160308469
    Abstract: A piezoelectric device is connected in parallel with a diode, and outputs a power generation voltage when depressed. When the power generation voltage exceeds a first threshold voltage, a load switch control circuit makes a load switch be conductive, and when the generated voltage becomes lower than a second threshold voltage, the load switch is cut off. Further, when depression is released, the piezoelectric device is discharged by the diode such that the amount of charge remaining in the piezoelectric device becomes zero.
    Type: Application
    Filed: June 30, 2016
    Publication date: October 20, 2016
    Inventors: CHIKAHIRO HORIGUCHI, Kouhei Takahashi
  • Publication number: 20160233796
    Abstract: A power generating apparatus includes a power generating element, a lever mechanism including a force point, a support point, and an action point, a first magnetic body disposed on the lever mechanism, and a second magnetic body having magnetic characteristics of being attracted to the first magnetic body. Upon the lever mechanism being pressed, the action point applies a load to the power generating portion and the first magnetic body approaches the second magnetic body while being attracted to the second magnetic body.
    Type: Application
    Filed: April 18, 2016
    Publication date: August 11, 2016
    Inventors: KOUHEI TAKAHASHI, Chikahiro Horiguchi
  • Publication number: 20160225842
    Abstract: An OLED display panel is provided which can control the problem of shedding even in high definition panels. Metal wiring 5 which conducts with an earth line of a flexible printed substrate 15 is provided on a substrate 1. A display area 2 comprised from a plurality of OLED elements is provided at the center of the substrate 1 and four low resistance metal films 3 are provided along each of four edges of the display area 2 on a surface of insulation films 8, 10 at the periphery of the display area 2. Among these, one low resistance metal film 3 conducts with the metal wiring 5 via a contact 3a.
    Type: Application
    Filed: April 6, 2016
    Publication date: August 4, 2016
    Inventors: Kouhei TAKAHASHI, Hirotsugu SAKAMOTO, Takeshi OOKAWARA, Toshihiro SATO
  • Publication number: 20160204176
    Abstract: A method of manufacturing an organic electroluminescent display device includes the steps of: forming transistors on an element substrate; and forming organic electroluminescent light emitting elements on the respective transistors, in which the step of forming the organic electroluminescent light emitting elements includes the steps of: forming anodes in correspondence with pixels; forming a polymer organic layer made of a polymer material by attaching the polymer material onto upper surfaces and end surfaces of the anodes; forming an organic layer having at least a light emitting layer on the polymer organic layer; and forming a cathode on the organic layer.
    Type: Application
    Filed: March 17, 2016
    Publication date: July 14, 2016
    Inventors: Hiroshi OOOKA, Yuko MATSUMOTO, Takeshi OOKAWARA, Kouhei TAKAHASHI, Hirotsugu SAKAMOTO
  • Patent number: 9385176
    Abstract: An OLED display panel is provided which can control the problem of shedding even in high definition panels. Metal wiring 5 which conducts with an earth line of a flexible printed substrate 15 is provided on a substrate 1. A display area 2 comprised from a plurality of OLED elements is provided at the center of the substrate 1 and four low resistance metal films 3 are provided along each of four edges of the display area 2 on a surface of insulation films 8, 10 at the periphery of the display area 2. Among these, one low resistance metal film 3 conducts with the metal wiring 5 via a contact 3a.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: July 5, 2016
    Assignee: Japan Display Inc.
    Inventors: Kouhei Takahashi, Hirotsugu Sakamoto, Takeshi Ookawara, Toshihiro Sato
  • Publication number: 20160111486
    Abstract: A display device includes contact holes opened in an insulating film outside of a display area in which pixels are arranged, and having a conductive film exposed in bottom portions, a first metal film formed to cover the contact holes and come in contact with the conductive film of the bottom portions, and a transparent conductive film formed on the first metal film.
    Type: Application
    Filed: December 21, 2015
    Publication date: April 21, 2016
    Inventors: Takeshi OOKAWARA, Toshihiro SATO, Hiroshi OOOKA, Kouhei TAKAHASHI
  • Patent number: 9299760
    Abstract: A circuit unit is provided in which it is possible to connect circuit board to a terminal using a simple operation without removing a passivation film from above the terminal. A metal electrode which conducts with a circuit element is formed above a substrate. Multiple column shaped insulation films are each formed at a uniform pitch in two intersecting directions above the surface of the metal electrode. A metal electrode is formed above the metal electrode including the insulation film. A passivation film is formed on a surface of the metal electrode. Conductive beads are stuck between pairs of projection structured bodies formed on a surface of the passivation film, the passivation film on a side surface of the projection structure is scraped whereby the conductive beads conduct simultaneously with the metal electrode and an electrode formed on the circuit board.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: March 29, 2016
    Assignee: JAPAN DISPLAY INC.
    Inventors: Kouhei Takahashi, Toshihiro Sato, Naohisa Ando, Hiroshi Kawanago
  • Patent number: 9287526
    Abstract: In an organic EL display device having plural organic EL elements each including an organic light emitting layer, an upper electrode formed on an upper side of the organic light emitting layer, and a reflective layer formed on a lower side of the organic light emitting layer, in which an image is displayed on a side of the organic light emitting layer on which the upper electrode is formed. The reflective layer in each of the organic EL elements includes a first plane, a second plane formed on a side lower than the first plane; and an inclined plane formed between the first plane and the second plane, and linearly inclined at a given angle equal to or higher than 35°, and equal to or lower than 55°.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: March 15, 2016
    Assignee: Japan Display Inc.
    Inventors: Toshio Miyazawa, Mitsuhide Miyamoto, Hironori Toyoda, Kouhei Takahashi, Masumi Nishimura
  • Patent number: 9128286
    Abstract: A metal layer is formed on a highly light-transmissive substrate; a resist mask having an opening pattern is formed on the metal layer; exposed portions of the metal layer is etched away in this state to form openings; then the resist mask is removed; and a surface of the metal layer and an inner side wall of each of the openings are oxidized to form a metal oxide layer. Thus, a front surface and a rear surface of the aperture plate are caused to have different reflectances. The oxide layer is formed at the same time as when the resist mask is ashed to remove resist.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: September 8, 2015
    Assignee: Pixtronix, Inc.
    Inventors: Kouhei Takahashi, Takeshi Kuriyagawa, Daisuke Sonoda, Takuo Kaitoh, Katsumi Matsumoto
  • Patent number: 9076985
    Abstract: A display device which can be produced at reduced material cost and has a smaller peripheral frame area, and a method for producing the same, are provided. A display device includes a first substrate including a display area, which includes an organic EL light emitting layer; a second substrate located so as to face the first substrate; a dam member located along, and outside with respect to, a part of an outer edge of the display area, the dam member joining the first substrate and the second substrate to each other; and a filler filling a space between the first substrate and the second substrate while being in contact with the dam member.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: July 7, 2015
    Assignee: JAPAN DISPLAY INC.
    Inventors: Hirotsugu Sakamoto, Hiroshi Oooka, Takeshi Ookawara, Kouhei Takahashi, Yuko Matsumoto