Patents by Inventor Ryoichi Nozawa

Ryoichi Nozawa 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: 20200295109
    Abstract: A light emitting device includes a transistor, a light reflection layer, a first insulation layer that includes a first layer thickness part, a second layer thickness part, and a third layer thickness part, a pixel electrode that is provided on the first insulation layer, a second insulation layer that covers a peripheral section of the pixel electrode, a light emission functional layer, a facing electrode, and a conductive layer that is provided on the first layer thickness part. The pixel electrode includes a first pixel electrode which is provided in the first layer thickness part, a second pixel electrode which is provided in the second layer thickness part, and a third pixel electrode which is provided in the third layer thickness part. The first pixel electrode, the second pixel electrode, and the third pixel electrode are connected to the transistor through the conductive layer.
    Type: Application
    Filed: June 3, 2020
    Publication date: September 17, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takeshi KOSHIHARA, Ryoichi NOZAWA
  • Patent number: 10777130
    Abstract: An organic electroluminescent device includes a first transistor, an organic electroluminescent element that emits light with luminance corresponding to magnitude of a current supplied via the first transistor, and a capacitive element. The capacitive element includes a first electrode connected to a gate of the first transistor, a second electrode, and a dielectric film provided between the first electrode and the second electrode. The first electrode is formed on the same layer as the second electrode, and is arranged in a position away from the second electrode with the dielectric film interposed therebetween.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: September 15, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hitoshi Ota, Ryoichi Nozawa
  • Publication number: 20200227680
    Abstract: An organic electroluminescence device includes a substrate, an organic electroluminescence element disposed on the substrate, a protecting portion configured to protect the organic electroluminescence element, and a resin portion mainly composed of a resin material. The protecting portion includes a first layer mainly composed of a silicon-based inorganic material containing nitrogen, a second layer mainly composed of silicon oxide or aluminum oxide, and a third layer mainly composed of a silicon-based inorganic material containing nitrogen, and the resin portion is disposed at a side surface of the second layer.
    Type: Application
    Filed: January 14, 2020
    Publication date: July 16, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Suguru AKAGAWA, Ryoichi NOZAWA, Takefumi FUKAGAWA
  • Patent number: 10714555
    Abstract: A light emitting device includes a transistor, a light reflection layer, a first insulation layer that includes a first layer thickness part, a second layer thickness part, and a third layer thickness part, a pixel electrode that is provided on the first insulation layer, a second insulation layer that covers a peripheral section of the pixel electrode, a light emission functional layer, a facing electrode, and a conductive layer that is provided on the first layer thickness part. The pixel electrode includes a first pixel electrode which is provided in the first layer thickness part, a second pixel electrode which is provided in the second layer thickness part, and a third pixel electrode which is provided in the third layer thickness part. The first pixel electrode, the second pixel electrode, and the third pixel electrode are connected to the transistor through the conductive layer.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: July 14, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takeshi Koshihara, Ryoichi Nozawa
  • Patent number: 10714564
    Abstract: An organic electroluminescent device includes a first transistor, a power supply line layer connected to one current terminal of the first transistor, a capacitive element including a first capacitive electrode connected to a gate of the first transistor, and a second capacitive electrode, a signal line, and a pixel electrode connected to the other current terminal of the first transistor, the first capacitive electrode is provided on a layer over the gate of the first transistor, and the power supply line layer is provided on a layer between the first capacitive electrode and the signal line.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: July 14, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hitoshi Ota, Ryoichi Nozawa
  • Publication number: 20200220116
    Abstract: A method for manufacturing an organic electroluminescence device includes forming an organic electroluminescence element on a substrate, forming, on the organic electroluminescence element, a first layer mainly composed of a silicon-based inorganic material containing nitrogen by a chemical vapor deposition method using plasma, and forming, on the first layer, a second layer mainly composed of silicon oxide by an atomic layer deposition method using plasma.
    Type: Application
    Filed: January 8, 2020
    Publication date: July 9, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takefumi FUKAGAWA, Suguru AKAGAWA, Ryoichi NOZAWA
  • Publication number: 20200185651
    Abstract: A first light-emitting element and a second light-emitting element that have a resonance structure that causes output light from a light-emission functional layer to resonate between a reflective layer and a semi-transmissive reflective layer, and a pixel definition layer, and in which an aperture part is formed to correspond to each of the first light-emitting element and the second light-emitting element, are formed on a base. A first interval between the reflective layer and the semi-transmissive reflective layer in the first light-emitting element and a second interval between the reflective layer and the semi-transmissive reflective layer in the second light-emitting element are different, and a film thickness of the pixel definition layer is less than a difference between the first interval and the second interval.
    Type: Application
    Filed: February 13, 2020
    Publication date: June 11, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Ryoichi NOZAWA, Atsushi AMANO, Takeshi KOSHIHARA, Akio FUKASE, Shinichi IWATA
  • Publication number: 20200127006
    Abstract: A multi-tier three-dimensional memory array includes multiple alternating stacks of insulating layers and electrically conductive layers that are vertically stacked. Memory stack structures including memory films and semiconductor channels extend through the alternating stacks. The alternating stacks are formed as alternating stacks of insulating layers and sacrificial material layers, and are subsequently modified by replacing the sacrificial material layers with electrically conductive layers. Structural support during replacement of the sacrificial material layers with the electrically conductive layers is provided by the memory stack structures and dielectric support pillar structures. The dielectric support pillar structures may be formed only for a first-tier structure including a first-tier alternating stack of first insulating layers and first spacer material layers, or may vertically extend over multiple tiers.
    Type: Application
    Filed: February 15, 2019
    Publication date: April 23, 2020
    Inventors: Yoshitaka OTSU, Kei NOZAWA, Yashushi DODA, Naoto HOJO, Yoshinobu TANAKA, Koichi ITO, Zhiwei CHEN, Yusuke IKAWA, Takeshi KAWAMURA, Ryoichi EHARA
  • Publication number: 20200105848
    Abstract: An electro-optical apparatus includes a first pixel and a second pixel. The first pixel and the second pixel include a reflective layer, an insulating layer, a functional layer, and an opposing electrode. The insulating layer includes a first insulating layer, a second insulating layer having a first opening, and a third insulating layer having a second opening. A first pixel electrode is provided on the first insulating layer in the first opening. A second pixel electrode is provided on the second insulating layer.
    Type: Application
    Filed: December 2, 2019
    Publication date: April 2, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Ryoichi NOZAWA, Takeshi KOSHIHARA, Hisakatsu SATO
  • Patent number: 10608208
    Abstract: A first light-emitting element and a second light-emitting element that have a resonance structure that causes output light from a light-emission functional layer to resonate between a reflective layer and a semi-transmissive reflective layer, and a pixel definition layer, and in which an aperture part is formed to correspond to each of the first light-emitting element and the second light-emitting element, are formed on a base. A first interval between the reflective layer and the semi-transmissive reflective layer in the first light-emitting element and a second interval between the reflective layer and the semi-transmissive reflective layer in the second light-emitting element are different, and a film thickness of the pixel definition layer is less than a difference between the first interval and the second interval.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: March 31, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Ryoichi Nozawa, Atsushi Amano, Takeshi Koshihara, Akio Fukase, Shinichi Iwata
  • Publication number: 20200066818
    Abstract: A light-emitting device includes a substrate having a circuit thereon, a first electrode electrically coupled to the circuit, a second electrode, a light-emitting layer, and a sealing layer including a planarization layer, wherein the first electrode is arranged between the substrate and the second electrode, the light-emitting layer is arranged between the first electrode and the second electrode and emits light in accordance with a current flowing through the light-emitting layer, the planarization layer is arranged on an opposite side of the second electrode from a side on which the light-emitting layer is arranged, and an outer edge of the planarization layer is located inward of an outer edge of the light-emitting layer in plan view.
    Type: Application
    Filed: August 23, 2019
    Publication date: February 27, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Suguru AKAGAWA, Ryoichi NOZAWA
  • Patent number: 10541289
    Abstract: An electro-optical apparatus includes a first pixel and a second pixel. The first pixel and the second pixel include a reflective layer, an insulating layer, a functional layer, and an opposing electrode. The insulating layer includes a first insulating layer, a second insulating layer having a first opening, and a third insulating layer having a second opening. A first pixel electrode is provided on the first insulating layer in the first opening. A second pixel electrode is provided on the second insulating layer.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: January 21, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Ryoichi Nozawa, Takeshi Koshihara, Hisakatsu Sato
  • Publication number: 20190378888
    Abstract: An organic electroluminescent device includes a first transistor, a power supply line layer connected to one current terminal of the first transistor, a capacitive element including a first capacitive electrode connected to a gate of the first transistor, and a second capacitive electrode, a signal line, and a pixel electrode connected to the other current terminal of the first transistor, the first capacitive electrode is provided on a layer over the gate of the first transistor, and the power supply line layer is provided on a layer between the first capacitive electrode and the signal line.
    Type: Application
    Filed: August 21, 2019
    Publication date: December 12, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Hitoshi OTA, Ryoichi NOZAWA
  • Patent number: 10431775
    Abstract: An organic EL device has at least a first pixel and a second pixel different in the optical path length, in which the first pixel and the second pixel have a reflective layer, a protective layer, an optical path length adjusting layer, a first electrode, a light emitting function layer, and a second electrode, and the optical path length adjusting layer is an insulating layer and has a refractive index higher than a refractive index of the protective layer.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: October 1, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Koya Shiratori, Takeshi Koshihara, Ryoichi Nozawa
  • Patent number: 10403687
    Abstract: There is provided an electro-optical device including a light-emitting element, a sealing layer that covers the light-emitting element, a color filter layer that is formed on the sealing layer, and a convex portion that is provided between the sealing layer and the color filter layer and has a first surface in contact with the sealing layer and a second surface in contact with the color filter layer, in which the second surface is a curved surface.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: September 3, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Suguru Akagawa, Ryoichi Nozawa, Naotaka Kubota, Takefumi Fukagawa
  • Patent number: 10403701
    Abstract: Subpixels of R, G, and B corresponding to a scanning line as a first conductive layer extended in a row direction and a data transfer line as a second conductive layer extended in a column direction are provided. A plurality of transistors in the subpixel of each of the colors is disposed along the column direction, and a reflective layer in the subpixel of at least one color is disposed along the row direction so as to overlap any transistor of subpixels of each display color. A center position of a disposition region of a reflective layer in one pixel unit including the subpixels of R, G, and B is different from a center position of a disposition region of a transistor in one pixel unit.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: September 3, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takeshi Koshihara, Hitoshi Ota, Ryoichi Nozawa
  • Patent number: 10340321
    Abstract: An electro-optical device includes a first electrode that is coupled to a first data transfer line, a second electrode that is coupled to a second data transfer line. The first and second electrodes are respectively formed in different layers. A first capacitor is formed of the first electrode, the second electrode, and a dielectric film between the first electrode and the second electrode. In addition, a power supplying line and the first data transfer line are formed in a same layer. A second capacitor is formed of the power supplying line, the first data transfer line, and an insulating layer between the power supplying line and the first data transfer line.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: July 2, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hitoshi Ota, Ryoichi Nozawa
  • Publication number: 20190140040
    Abstract: An organic electroluminescent device includes a first transistor, a power supply line layer connected to one current terminal of the first transistor, a capacitive element including a first capacitive electrode connected to a gate of the first transistor, and a second capacitive electrode, a signal line, and a pixel electrode connected to the other current terminal of the first transistor, the first capacitive electrode is provided on a layer over the gate of the first transistor, and the power supply line layer is provided on a layer between the first capacitive electrode and the signal line.
    Type: Application
    Filed: December 14, 2018
    Publication date: May 9, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Hitoshi OTA, Ryoichi NOZAWA
  • Publication number: 20190051714
    Abstract: Subpixels of R, G, and B corresponding to a scanning line as a first conductive layer extended in a row direction and a data transfer line as a second conductive layer extended in a column direction are provided. A plurality of transistors in the subpixel of each of the colors is disposed along the column direction, and a reflective layer in the subpixel of at least one color is disposed along the row direction so as to overlap any transistor of subpixels of each display color. A center position of a disposition region of a reflective layer in one pixel unit including the subpixels of R, G, and B is different from a center position of a disposition region of a transistor in one pixel unit.
    Type: Application
    Filed: October 12, 2018
    Publication date: February 14, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takeshi KOSHIHARA, Hitoshi OTA, Ryoichi NOZAWA
  • Publication number: 20190027544
    Abstract: An electro-optical apparatus includes a first pixel and a second pixel. The first pixel and the second pixel include a reflective layer, an insulating layer, a functional layer, and an opposing electrode. The insulating layer includes a first insulating layer, a second insulating layer having a first opening, and a third insulating layer having a second opening. A first pixel electrode is provided on the first insulating layer in the first opening. A second pixel electrode is provided on the second insulating layer.
    Type: Application
    Filed: September 27, 2018
    Publication date: January 24, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Ryoichi NOZAWA, Takeshi KOSHIHARA, Hisakatsu SATO