Patents by Inventor Hiroshi Kawanago

Hiroshi Kawanago 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: 20210367172
    Abstract: The purpose of the invention is to manufacture the device having a resin substrate without using expensive machine like laser apparatus and so forth, and to raise a yield rate of the material. The structure is as follows. A device having a resin substrate: in which the resin substrate has a surface, on which a functional layer is formed, and a back surface, which is rear side from the surface, the back surface has a peripheral area and an inner area, which is located inner side than the peripheral area in a plan view, the peripheral area has a rough surface whose surface roughness is larger compared with a surface roughness of the inner area.
    Type: Application
    Filed: August 2, 2021
    Publication date: November 25, 2021
    Applicant: Japan Display Inc.
    Inventor: Hiroshi KAWANAGO
  • Publication number: 20210098502
    Abstract: The purpose of the present invention is to prevent forming of soot like black substance on the back of the TFT substrate of resin during laser ablation to separate the glass substrate from the TFT substrate. The present invention takes the following structure to counter measure the above problem. A display device having pixels formed on a first surface of the resin substrate including: a first layer, formed from nitride, being formed on a second surface of the resin substrate, the second surface being an opposite surface to the first surface, in which a second layer, which is a separation layer, is formed on the first layer.
    Type: Application
    Filed: December 11, 2020
    Publication date: April 1, 2021
    Applicant: Japan Display Inc.
    Inventors: Hiroshi KAWANAGO, Kazufumi WATABE
  • Publication number: 20210083187
    Abstract: A method of manufacturing a display device, including: a stacking step of stacking, on a glass substrate, a sacrificial resin layer, a metal layer, a transparent metal oxide layer, a base material resin layer, and a functional layer including at least one of a pixel circuit-constituting layer driving a plurality of pixels and a color filter layer, in this order; a radiating step of radiating a pulsed light of a xenon flash lamp to the metal layer through the glass substrate and the sacrificial resin layer; and a detaching step of reducing a force of adhesion between the sacrificial resin layer and the metal layer with the pulsed light radiated in the radiating step, and detaching the sacrificial resin layer from the metal layer.
    Type: Application
    Filed: November 30, 2020
    Publication date: March 18, 2021
    Inventors: Hiroshi KAWANAGO, Kazufumi WATABE
  • Patent number: 10886469
    Abstract: A method of manufacturing a display device, including: a stacking step of stacking, on a glass substrate, a sacrificial resin layer, a metal layer, a transparent metal oxide layer, a base material resin layer, and a functional layer including at least one of a pixel circuit-constituting layer driving a plurality of pixels and a color filter layer, in this order; a radiating step of radiating a pulsed light of a xenon flash lamp to the metal layer through the glass substrate and the sacrificial resin layer; and a detaching step of reducing a force of adhesion between the sacrificial resin layer and the metal layer with the pulsed light radiated in the radiating step, and detaching the sacrificial resin layer from the metal layer.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: January 5, 2021
    Assignee: Japan Display Inc.
    Inventors: Hiroshi Kawanago, Kazufumi Watabe
  • Publication number: 20200376607
    Abstract: The present invention provides a solder material containing Sn or a Sn-containing alloy and 40 to 320 ppm by mass of A, the solder material including an As-enriched layer.
    Type: Application
    Filed: November 21, 2018
    Publication date: December 3, 2020
    Applicant: SENJU METAL INDUSTRY CO., LTD.,
    Inventors: Hiroyoshi Kawasaki, Hiroki Sudo, Takahiro Roppongi, Hiroshi Okada, Daisuke Soma, Takashi Akagawa, Hiroshi Takahashi, Hiroshi Kawanago, Satoshi Yokota, Osamu Munekata
  • Publication number: 20200343274
    Abstract: The purpose of the invention is to manufacture the flexible display device having resin substrate with high throughput and high yield. The structure of the invention is as follows: a display device having plural pixels on a resin substrate comprising: a first layer made of a metal oxide film is formed on a surface of the resin substrate opposite to a surface that the plural pixels are formed, a second layer made of a transparent conductive film is formed in contact with a surface, which is opposite side to the resin substrate, of the first layer.
    Type: Application
    Filed: July 9, 2020
    Publication date: October 29, 2020
    Applicant: Japan Display Inc.
    Inventors: Hiroshi KAWANAGO, Kazufumi WATABE
  • Publication number: 20200328262
    Abstract: The purpose of the invention is to manufacture the flexible display device having resin substrate with high yield. The structure is as follows. A manufacturing method of a display device comprising: forming a first layer of a semiconductor on a glass substrate, forming a second layer of a first metal on the first layer, forming a third layer of a first insulating material on the second layer, forming a fourth layer of a second metal or a metal oxide on the third layer, coating precursor of polyimide on the fourth layer, making a polyimide substrate by baking the precursor of polyimide to make a polyimide substrate, forming pixels on the polyimide substrate, separating the polyimide substrate and the glass substrate by making peel off between the second layer and the third layer with irradiation of a laser beam on the first layer.
    Type: Application
    Filed: June 24, 2020
    Publication date: October 15, 2020
    Applicant: Japan Display Inc.
    Inventors: Hiroshi KAWANAGO, Kazufumi WATABE
  • Patent number: 10697887
    Abstract: A measuring apparatus that measures an optical characteristic of a surface in accordance with a standard selected from a plurality of standards is provided. The apparatus includes an illumination device configured to illuminate the surface with light from a light source, an imaging device configured to image the light source with reflected light from the surface illuminated by the illumination device, and a processor configured to process image data having number of pixels obtained by reducing number of pixels of the imaging device by a reduction rate to obtain the optical characteristic of the surface. The processor is configured to determine the reduction rate based on the selected standard.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: June 30, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yusuke Kasai, Hiroshi Kawanago, Takashi Seki
  • Patent number: 10634611
    Abstract: The present invention provides a measuring apparatus having a housing in which an opening is formed, and measuring a reflection characteristic of a target region to be measured via the opening, the apparatus comprising an imaging device provided in the housing, and configured to capture an image of an imaging region via the opening, a detector configured to detect light reflected from the target region, which is a portion of the imaging region, a processor configured to obtain a reflection characteristic of the target region based on the light detected by the detecting unit, and a display unit configured to display the image of the imaging region captured by the imaging unit, wherein the image of the imaging region displayed by the display unit includes information indicating the target region.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: April 28, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Hiroshi Kawanago
  • Publication number: 20200106015
    Abstract: A method of manufacturing a display device, including: a stacking step of stacking, on a glass substrate, a sacrificial resin layer, a metal layer, a transparent metal oxide layer, a base material resin layer, and a functional layer including at least one of a pixel circuit-constituting layer driving a plurality of pixels and a color filter layer, in this order; a radiating step of radiating a pulsed light of a xenon flash lamp to the metal layer through the glass substrate and the sacrificial resin layer; and a detaching step of reducing a force of adhesion between the sacrificial resin layer and the metal layer with the pulsed light radiated in the radiating step, and detaching the sacrificial resin layer from the metal layer.
    Type: Application
    Filed: December 3, 2019
    Publication date: April 2, 2020
    Inventors: Hiroshi KAWANAGO, Kazufumi WATABE
  • Patent number: 10529925
    Abstract: A method of manufacturing a display device, including: a stacking step of stacking, on a glass substrate, a sacrificial resin layer, a metal layer, a transparent metal oxide layer, a base material resin layer, and a functional layer including at least one of a pixel circuit-constituting layer driving a plurality of pixels and a color filter layer, in this order; a radiating step of radiating a pulsed light of a xenon flash lamp to the metal layer through the glass substrate and the sacrificial resin layer; and a detaching step of reducing a force of adhesion between the sacrificial resin layer and the metal layer with the pulsed light radiated in the radiating step, and detaching the sacrificial resin layer from the metal layer.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: January 7, 2020
    Assignee: Japan Display Inc.
    Inventors: Hiroshi Kawanago, Kazufumi Watabe
  • Patent number: 10488569
    Abstract: The purpose of the present invention is to realize a flexible display includes a resin substrate and a TFT having an oxide. The structure of the invention is as follows. A display device comprising: a substrate formed by resin, an inorganic insulating film and a thin film transistor including a semiconductor, wherein an infra-red light reflecting film is formed between the substrate and the thin film transistor.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: November 26, 2019
    Assignee: Japan Display Inc.
    Inventors: Kazufumi Watabe, Hiroshi Kawanago
  • Publication number: 20190323958
    Abstract: The present invention provides a measurement apparatus comprising: a measurement unit configured to measure a reflection characteristic of a first region in a surface; an image capturing unit configured to obtain an image of a second region that is larger than the first region and includes the first region, by image-capturing the second region in a state of illuminating the first region so as to be brighter than a region other than the first region in the second region; and a control unit configured to cause a display unit to display a plurality of measurement results obtained by a plurality of times of measurement by the measurement unit, wherein the control unit causes the display unit to display the image which corresponds to a measurement result selected from the plurality of measurement results, together with the plurality of measurement results.
    Type: Application
    Filed: July 3, 2019
    Publication date: October 24, 2019
    Inventors: Hiroshi Kawanago, Yukie Kuroki
  • Patent number: 10319943
    Abstract: A structure including a first resin layer and a second resin layer sandwiching a self-light emitting element layer, a first stopper layer, a first resin sacrificial layer and a first glass substrate which are stacked on the first resin layer on the opposite side of the self-light emitting element layer, and a second glass substrate stacked on the second resin layer is prepared. The first glass substrate is peeled off from the first resin sacrificial layer by irradiating the first glass substrate with a laser beam. The first resin sacrificial layer is decomposed by a chemical reaction using a gas. The first stopper layer has a resistance to the chemical reaction, and the first resin sacrificial layer is removed while leaving the first stopper layer in a step of decomposing the first resin sacrificial layer.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: June 11, 2019
    Assignee: Japan Display Inc.
    Inventors: Kazufumi Watabe, Hiroshi Kawanago
  • Patent number: 10265808
    Abstract: A flux for a resin flux cored solder contains 30% or more by mass but 80% or less by mass rosin ester and 5% or more by mass but 15% or less by mass activator. The total content ratio of base materials including the rosin ester is preferably equal to or more than 85% by mass but equal to or less than 95% by mass.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: April 23, 2019
    Assignee: Senju Metal Industry Co., Ltd.
    Inventors: Motohiro Onitsuka, Yoko Kurasawa, Toshihisa Kugi, Hiroshi Kawanago, Kaichi Tsuruta
  • Publication number: 20180203169
    Abstract: The purpose of the present invention is to realize a flexible display includes a resin substrate and a TFT having an oxide. The structure of the invention is as follows. A display device comprising: a substrate formed by resin, an inorganic insulating film and a thin film transistor including a semiconductor, wherein an infra-red light reflecting film is formed between the substrate and the thin film transistor.
    Type: Application
    Filed: December 1, 2017
    Publication date: July 19, 2018
    Applicant: Japan Display Inc.
    Inventors: Kazufumi Watabe, Hiroshi Kawanago
  • Patent number: 9997737
    Abstract: A structure including a first resin layer and a second resin layer sandwiching a self-light emitting element layer, a first stopper layer, a first resin sacrificial layer and a first glass substrate which are stacked on the first resin layer on the opposite side of the self-light emitting element layer, and a second glass substrate stacked on the second resin layer is prepared. The first glass substrate is peeled off from the first resin sacrificial layer by irradiating the first glass substrate with a laser beam. The first resin sacrificial layer is decomposed by a chemical reaction using a gas. The first stopper layer has a resistance to the chemical reaction, and the first resin sacrificial layer is removed while leaving the first stopper layer in a step of decomposing the first resin sacrificial layer.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: June 12, 2018
    Assignee: Japan Display Inc.
    Inventors: Kazufumi Watabe, Hiroshi Kawanago
  • Patent number: 9978989
    Abstract: First rib layers made of an inorganic material are formed in first frame regions of a first glass substrate. First resin layers are formed in first product regions after the first rib layers are formed. First functional layers which include light emitting element layers as a result of luminance of each of unit pixels forming an image being controlled and sealing layers covering the light emitting element layers are formed on the first rib layers and the first resin layers. The first rib layers and the first functional layers are cut along lines passing through the first frame regions while avoiding the first product regions in order to separate the first product regions from each other. In the step of cutting the first rib layers and the first functional layers, the first rib layers and the sealing layers are cut.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: May 22, 2018
    Assignee: Japan Display Inc.
    Inventors: Kazufumi Watabe, Hiroshi Kawanago, Manabu Yamashita, Hideaki Ishige
  • Publication number: 20180113073
    Abstract: The present invention provides a measuring apparatus having a housing in which an opening is formed, and measuring a reflection characteristic of a target region to be measured via the opening, the apparatus comprising an imaging device provided in the housing, and configured to capture an image of an imaging region via the opening, a detector configured to detect light reflected from the target region, which is a portion of the imaging region, a processor configured to obtain a reflection characteristic of the target region based on the light detected by the detecting unit, and a display unit configured to display the image of the imaging region captured by the imaging unit, wherein the image of the imaging region displayed by the display unit includes information indicating the target region.
    Type: Application
    Filed: October 17, 2017
    Publication date: April 26, 2018
    Inventor: Hiroshi Kawanago
  • Publication number: 20180102478
    Abstract: A method of manufacturing a display device, including: a stacking step of stacking, on a glass substrate, a sacrificial resin layer, a metal layer, a transparent metal oxide layer, a base material resin layer, and a functional layer including at least one of a pixel circuit-constituting layer driving a plurality of pixels and a color filter layer, in this order; a radiating step of radiating a pulsed light of a xenon flash lamp to the metal layer through the glass substrate and the sacrificial resin layer; and a detaching step of reducing a force of adhesion between the sacrificial resin layer and the metal layer with the pulsed light radiated in the radiating step, and detaching the sacrificial resin layer from the metal layer.
    Type: Application
    Filed: December 5, 2017
    Publication date: April 12, 2018
    Inventors: Hiroshi Kawanago, Kazufumi Watabe