Patents by Inventor Masumi Nishimura

Masumi Nishimura 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: 20210265581
    Abstract: In a display device including a flexible display panel, the risk of disconnection of a wiring due to bending is reduced. A display panel includes a display function layer including display elements and a wiring on one major surface of a base material having flexibility. The display panel includes, on the one major surface of the base material, an organic-film-covered wiring area where the surface of the wiring is covered with an organic planarization film that is an organic insulating film in direct contact with the wiring. The display panel includes, in the plane thereof, a display area where the display elements are arranged and a component mounting area that is a peripheral area located outside the display area. As the organic-film-covered wiring area, a curved area is provided in the peripheral area.
    Type: Application
    Filed: May 7, 2021
    Publication date: August 26, 2021
    Applicant: Japan Display Inc.
    Inventor: Masumi NISHIMURA
  • Publication number: 20210210586
    Abstract: A display device according to an embodiment of the present invention includes: an insulating sheet provided from a display region to a drive portion forming region, including, in a curved region, a first film-thickness region having a first film thickness thinner than a film thickness at the display region and a film thickness at the drive portion forming region, and including a first step portion disposed between the display region and the first film-thickness region and a second step portion disposed between the drive portion forming region and the first film-thickness region, first and second wiring lines crossing the first step portion and the second step portion above the insulating sheet and electrically connecting a pixel array portion with a drive portion, and an insulating wall extending from the first step portion to the second step portion between the first wiring line and the second wiring line.
    Type: Application
    Filed: March 24, 2021
    Publication date: July 8, 2021
    Applicant: Japan Display Inc.
    Inventors: Kenta KAJIYAMA, Masumi NISHIMURA
  • Patent number: 11031564
    Abstract: In a display device including a flexible display panel, the risk of disconnection of a wiring due to bending is reduced. A display panel includes a display function layer including display elements and a wiring on one major surface of a base material having flexibility. The display panel includes, on the one major surface of the base material, an organic-film-covered wiring area where the surface of the wiring is covered with an organic planarization film that is an organic insulating film in direct contact with the wiring. The display panel includes, in the plane thereof, a display area where the display elements are arranged and a component mounting area that is a peripheral area located outside the display area. As the organic-film-covered wiring area, a curved area is provided in the peripheral area.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: June 8, 2021
    Assignee: Japan Display Inc.
    Inventor: Masumi Nishimura
  • Patent number: 10985232
    Abstract: A display device according to an embodiment of the present invention includes: an insulating sheet provided from a display region to a drive portion forming region, including, in a curved region, a first film-thickness region having a first film thickness thinner than a film thickness at the display region and a film thickness at the drive portion forming region, and including a first step portion disposed between the display region and the first film-thickness region and a second step portion disposed between the drive portion forming region and the first film-thickness region, first and second wiring lines crossing the first step portion and the second step portion above the insulating sheet and electrically connecting a pixel array portion with a drive portion, and an insulating wall extending from the first step portion to the second step portion between the first wiring line and the second wiring line.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: April 20, 2021
    Assignee: Japan Display Inc.
    Inventors: Kenta Kajiyama, Masumi Nishimura
  • Publication number: 20210091336
    Abstract: A display device includes a flexible substrate including a first region including a display region, a second region including a curved region, and a third region including a terminal region; an electro-optical element located in the display region; and a resin layer continuously extending from the first region to the third region.
    Type: Application
    Filed: December 8, 2020
    Publication date: March 25, 2021
    Inventors: Masumi NISHIMURA, Shinichiro OKA
  • Patent number: 10892440
    Abstract: A display device includes a flexible substrate including a first region including a display region, a second region including a curved region, and a third region including a terminal region; an electro-optical element located in the display region; and a resin layer continuously extending from the first region to the third region.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: January 12, 2021
    Assignee: Japan Display Inc.
    Inventors: Masumi Nishimura, Shinichiro Oka
  • Patent number: 10833612
    Abstract: An electric working machine includes an inverter and a controller. The controller switches a current conduction pattern via the inverter and performs a PWM control of a conduction current to a brushless motor. The controller includes switching patterns as the current conduction pattern switched for every commutation timing. The switching patterns include different on and off states for different switching elements. The controller sequentially switches a switching pattern synchronously with a period of the PWM control, detects a rotational position of a brushless motor from a magnitude relation between inductances of the brushless motor produced by switching the switching pattern, and sets the commutation timing.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: November 10, 2020
    Assignee: MAKITA CORPORATION
    Inventors: Masumi Nishimura, Yoshiteru Ito
  • Publication number: 20200350378
    Abstract: A display device includes a display panel including a display region, a terminal region provided with a terminal, and a bending region located between the display region and the terminal region and capable of bending, the terminal region being located on a rear surface side opposite to a display surface side with respect to the display region based on the bending region bent and a protective coating provided on the display surface side of the bending region. When a direction in which the display region, the bending region, and the terminal region are arranged is defined as a first direction and a direction crossing the first direction is defined as a second direction, the bending region includes a bank portion located in the second direction with respect to the protective coating, projecting to the display surface side, and extending in the first direction.
    Type: Application
    Filed: July 15, 2020
    Publication date: November 5, 2020
    Applicant: Japan Display Inc.
    Inventor: Masumi Nishimura
  • Publication number: 20200295303
    Abstract: Provided is a display device comprising a protection coating having a precisely controlled thickness. The display device comprises: a display panel including a display area, a terminal area on which terminals are disposed, and a bent area located between the display area and the terminal area, wherein the bent area is bent such that the terminal area is located below the backside of the display area; a film on the frontside of the display area; a film on the frontside of the display area; an optically transparent plate on the frontside of the film; and a protection coating disposed on the frontside of the bent area, wherein one end of the film faces one end of the protection coating, and the optically transparent plate covers the end of the protection coating and is bonded to the end of the protection coating.
    Type: Application
    Filed: June 3, 2020
    Publication date: September 17, 2020
    Applicant: Japan Display Inc.
    Inventors: Masumi NISHIMURA, Megumi SENDA
  • Publication number: 20200286978
    Abstract: A display includes a plurality of first wirings which are provided on a first layer and each of which is arranged parallel to a first direction in a first area, and which are arranged on a second layer in a second area; a second wiring which is provided in the first layer in the first area and which is provided on a layer in the second area; and a third wiring which is provided on the first layer and arranged between the first wirings in the first area and which is arranged to intersect with first wirings in the second area. The first wirings is arranged to be inclined to the same side in the first direction in the second area. The second wiring is arranged to intersect with a portion of the plurality of first wirings in a plan view, in the second area.
    Type: Application
    Filed: May 21, 2020
    Publication date: September 10, 2020
    Applicant: Japan Display Inc.
    Inventors: Masumi NISHIMURA, Hiroshi TABATAKE, Akihito SATO
  • Patent number: 10748976
    Abstract: A display device includes a display panel including a display region, a terminal region provided with a terminal, and a bending region located between the display region and the terminal region and capable of bending, the terminal region being located on a rear surface side opposite to a display surface side with respect to the display region based on the bending region bent and a protective coating provided on the display surface side of the bending region. When a direction in which the display region, the bending region, and the terminal region are arranged is defined as a first direction and a direction crossing the first direction is defined as a second direction, the bending region includes a bank portion located in the second direction with respect to the protective coating, projecting to the display surface side, and extending in the first direction.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: August 18, 2020
    Assignee: Japan Display Inc.
    Inventor: Masumi Nishimura
  • Patent number: 10734468
    Abstract: A display device according to an embodiment of the present invention includes: a display area provided with a pixel array part; a terminal area arranged on a backside of the display area and provided with a connection terminal to which a signal is supplied from outside; and a bendable area to connect the display area and the terminal area, wherein the display device is provided with, in the bendable area, an under layer having flexibility, and a connection wiring which is provided on the under layer and extends from a side of the pixel array part to a side of the connection terminal, and an upper surface of the under layer has an uneven shape so that the connection wiring repeatedly turns in directions of a thickness of the under layer.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: August 4, 2020
    Assignee: Japan Display Inc.
    Inventors: Hayata Aoki, Masumi Nishimura
  • Patent number: 10573706
    Abstract: A first bent wiring has a first bent portion which is positioned between first and second extending portions and is bent to a side of a first direction. A second bent portion is positioned between the second extending portion and a third extending portion and is bent to a second direction side. A second bent wiring has a third bent portion which is positioned on the second direction side when viewed from the first bent wiring and between fourth and fifth extending portions and is bent to the side of the first direction and a fourth bent portion which is positioned between the fifth extending portion and a sixth extending portion and is bent to the second direction side. A bending point of the third bent portion is positioned on the side of the first direction when viewed from a bending point of the second bent portion.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: February 25, 2020
    Assignee: Japan Display Inc.
    Inventors: Takahiro Fujioka, Masumi Nishimura
  • Publication number: 20200013837
    Abstract: A display device includes a display panel including a display region, a terminal region provided with a terminal, and a bending region located between the display region and the terminal region and capable of bending, the terminal region being located on a rear surface side opposite to a display surface side with respect to the display region based on the bending region bent and a protective coating provided on the display surface side of the bending region. When a direction in which the display region, the bending region, and the terminal region are arranged is defined as a first direction and a direction crossing the first direction is defined as a second direction, the bending region includes a bank portion located in the second direction with respect to the protective coating, projecting to the display surface side, and extending in the first direction.
    Type: Application
    Filed: September 16, 2019
    Publication date: January 9, 2020
    Applicant: Japan Display Inc.
    Inventor: Masumi NISHIMURA
  • Patent number: 10490772
    Abstract: The purpose of the present invention is to realize a reliable bendable organic EL display device with high reliability. The structure of the invention is as follows. An organic EL display device comprising: pixels, each of the pixels has an emitting layer, which is sandwiched by a lower electrode and an upper electrode, a first inorganic protective film is formed on the emitting layer, the first inorganic protective film is circle or polygon having at least five sides, in a plan view.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: November 26, 2019
    Assignee: Japan Display Inc.
    Inventors: Masumi Nishimura, Heisuke Kanaya
  • Publication number: 20190348620
    Abstract: In a display device including a flexible display panel, the risk of disconnection of a wiring due to bending is reduced. A display panel includes a display function layer including display elements and a wiring on one major surface of a base material having flexibility. The display panel includes, on the one major surface of the base material, an organic-film-covered wiring area where the surface of the wiring is covered with an organic planarization film that is an organic insulating film in direct contact with the wiring. The display panel includes, in the plane thereof, a display area where the display elements are arranged and a component mounting area that is a peripheral area located outside the display area. As the organic-film-covered wiring area, a curved area is provided in the peripheral area.
    Type: Application
    Filed: July 24, 2019
    Publication date: November 14, 2019
    Applicant: Japan Display Inc.
    Inventor: Masumi NISHIMURA
  • Publication number: 20190341442
    Abstract: A display device according to an embodiment of the present invention includes: an insulating sheet provided from a display region to a drive portion forming region, including, in a curved region, a first film-thickness region having a first film thickness thinner than a film thickness at the display region and a film thickness at the drive portion forming region, and including a first step portion disposed between the display region and the first film-thickness region and a second step portion disposed between the drive portion forming region and the first film-thickness region, first and second wiring lines crossing the first step portion and the second step portion above the insulating sheet and electrically connecting a pixel array portion with a drive portion, and an insulating wall extending from the first step portion to the second step portion between the first wiring line and the second wiring line.
    Type: Application
    Filed: July 16, 2019
    Publication date: November 7, 2019
    Applicant: Japan Display Inc.
    Inventors: Kenta KAJIYAMA, Masumi NISHIMURA
  • Publication number: 20190333979
    Abstract: A display device according to an embodiment of the present invention includes: a display area provided with a pixel array part; a terminal area arranged on a backside of the display area and provided with a connection terminal to which a signal is supplied from outside; and a bendable area to connect the display area and the terminal area, wherein the display device is provided with, in the bendable area, an under layer having flexibility, and a connection wiring which is provided on the under layer and extends from a side of the pixel array part to a side of the connection terminal, and an upper surface of the under layer has an uneven shape so that the connection wiring repeatedly turns in directions of a thickness of the under layer.
    Type: Application
    Filed: April 24, 2019
    Publication date: October 31, 2019
    Applicant: Japan Display Inc.
    Inventors: Hayata AOKI, Masumi NISHIMURA
  • Patent number: 10461674
    Abstract: An electric working machine according to one aspect of the present disclosure comprises a motor, a speed setting unit, a load detection unit, a determination unit, and a parameter setting unit. The determination unit calculates an estimated value of a heat generation amount of the motor, and determines that the motor is in an overload operation state when the estimated value reaches a predetermined threshold. The parameter setting unit sets a parameter to be used for calculating the estimated value and/or the threshold in accordance with a rotation speed set by the speed setting unit.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: October 29, 2019
    Assignee: MAKITA CORPORATION
    Inventors: Michisada Yabuguchi, Kouichi Takeda, Masumi Nishimura, Hiroshi Nojiri
  • Patent number: 10453906
    Abstract: A display device includes a display panel including a display region, a terminal region provided with a terminal, and a bending region located between the display region and the terminal region and capable of bending, the terminal region being located on a rear surface side opposite to a display surface side with respect to the display region based on the bending region bent and a protective coating provided on the display surface side of the bending region. When a direction in which the display region, the bending region, and the terminal region are arranged is defined as a first direction and a direction crossing the first direction is defined as a second direction, the bending region includes a bank portion located in the second direction with respect to the protective coating, projecting to the display surface side, and extending in the first direction.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: October 22, 2019
    Assignee: Japan Display Inc.
    Inventor: Masumi Nishimura