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).

  • Patent number: 9461268
    Abstract: A light-emitting device is equipped with a first light-emitting element and a second light-emitting element that are formed above a base, and a sealing layer that coats the first light-emitting element and the second light-emitting element. At least one of an interval between the first light-emitting element and the second light-emitting element, a pitch between the first light-emitting element and the second light-emitting element, or a width of the light-emitting elements is less than or equal to a film thickness of the sealing layer.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: October 4, 2016
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Ryoichi Nozawa
  • Publication number: 20160276423
    Abstract: A light-emitting device includes a drive transistor for controlling the quantity of current supplied to a light-emitting element, a capacitor element electrically connected to a gate electrode of the drive transistor, and an electrical continuity portion for electrically connecting the drive transistor and the light-emitting element, these elements being disposed on a substrate. The electrical continuity portion is disposed on the side opposite to the capacitor element with the drive transistor disposed therebetween.
    Type: Application
    Filed: May 27, 2016
    Publication date: September 22, 2016
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takehiko KUBOTA, Eiji KANDA, Ryoichi NOZAWA
  • Patent number: 9443919
    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 11, 2015
    Date of Patent: September 13, 2016
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takeshi Koshihara, Ryoichi Nozawa
  • Publication number: 20160204179
    Abstract: On a semiconductor substrate, a plurality of transistors that includes a drive transistor which controls a drive current according to a potential of a gate, a light emitting element that emits a light having a brightness corresponding to the drive current, and an element isolation portion that electrically isolates each transistor are formed. The element isolation portion has a structure in which an insulator fills inside of a groove formed on the semiconductor substrate.
    Type: Application
    Filed: March 23, 2016
    Publication date: July 14, 2016
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Hitoshi OTA, Ryoichi NOZAWA
  • Patent number: 9379172
    Abstract: A light-emitting device includes a drive transistor for controlling the quantity of current supplied to a light-emitting element, a capacitor element electrically connected to a gate electrode of the drive transistor, and an electrical continuity portion for electrically connecting the drive transistor and the light-emitting element, these elements being disposed on a substrate. The electrical continuity portion is disposed on the side opposite to the capacitor element with the drive transistor disposed therebetween.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: June 28, 2016
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takehiko Kubota, Eiji Kanda, Ryoichi Nozawa
  • Publication number: 20160126294
    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: January 8, 2016
    Publication date: May 5, 2016
    Inventors: Ryoichi NOZAWA, Takeshi KOSHIHARA, Hisakatsu SATO
  • Patent number: 9331133
    Abstract: On a semiconductor substrate, a plurality of transistors that includes a drive transistor which controls a drive current according to a potential of a gate, a light emitting element that emits a light having a brightness corresponding to the drive current, and an element isolation portion that electrically isolates each transistor are formed. The element isolation portion has a structure in which an insulator fills inside of a groove formed on the semiconductor substrate.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: May 3, 2016
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hitoshi Ota, Ryoichi Nozawa
  • Publication number: 20160063916
    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: Application
    Filed: August 20, 2015
    Publication date: March 3, 2016
    Inventors: Hitoshi OTA, Ryoichi NOZAWA
  • Publication number: 20160064467
    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 20, 2015
    Publication date: March 3, 2016
    Inventors: Hitoshi OTA, Ryoichi NOZAWA
  • Patent number: 9269924
    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: May 30, 2014
    Date of Patent: February 23, 2016
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Ryoichi Nozawa, Takeshi Koshihara, Hisakatsu Sato
  • Publication number: 20150349038
    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: August 11, 2015
    Publication date: December 3, 2015
    Inventors: Takeshi KOSHIHARA, Ryoichi NOZAWA
  • Patent number: 9142599
    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 8, 2014
    Date of Patent: September 22, 2015
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takeshi Koshihara, Ryoichi Nozawa
  • Patent number: 9117784
    Abstract: A light-emitting device includes: a light-emitting element which is disposed in a display region of a base body and includes a first electrode, a second electrode, and a light-emitting functional layer; a first conductor; a first insulating layer which covers the first conductor; a second conductor; and a second insulating layer which covers the second conductor. The second electrode is formed on a surface of the first insulating layer and is electrically connected to the first conductor via a first conduction hole of the first insulating layer, the first conductor is formed on a surface of the second insulating layer and is electrically connected to the second conductor via a second conduction hole of the second insulating layer, and the first conduction hole and the second conduction hole are configured not to overlap each other in a plan view.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: August 25, 2015
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takeshi Koshihara, Hitoshi Ota, Ryoichi Nozawa
  • Patent number: 9070649
    Abstract: A light-emitting device includes a drive transistor for controlling the quantity of current supplied to a light-emitting element, a capacitor element electrically connected to a gate electrode of the drive transistor, and an electrical continuity portion for electrically connecting the drive transistor and the light-emitting element, these elements being disposed on a substrate. The electrical continuity portion is disposed on the side opposite to the capacitor element with the drive transistor disposed therebetween.
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: June 30, 2015
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takehiko Kubota, Eiji Kanda, Ryoichi Nozawa
  • Patent number: 9066388
    Abstract: A light-emitting device includes a drive transistor that controls a current to be supplied to a light-emitting element from a power supply line, an element continuity portion that electrically connects the drive transistor with the light-emitting element, an initializing transistor that is turned ON to diode-connect the drive transistor, and a connecting portion that electrically connects the drive transistor with the initializing transistor. The power supply line includes a first portion extending in a predetermined direction. The element continuity portion and the connecting portion are formed from the same layer as that of the power supply line and are located on one side along the width of the first portion across the drive transistor.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: June 23, 2015
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takehiko Kubota, Eiji Kanda, Ryoichi Nozawa
  • Publication number: 20150102376
    Abstract: A light-emitting device includes a light-emitting element disposed in a display region and including a first electrode, a second electrode, and a light-emitting functional layer. The light-emitting device includes a wiring formed in a periphery of the display region and that is electrically connected to the second electrode, and a filter layer having a first color filter that overlaps the light-emitting element and a first layer that overlaps the peripheral wiring. The first color filter and the first layer are formed from a first colored layer that transmits light having a first wavelength.
    Type: Application
    Filed: October 8, 2014
    Publication date: April 16, 2015
    Inventors: Takashi TOYA, Takeshi KOSHIHARA, Naotaka KUBOTA, Ryoichi NOZAWA
  • Publication number: 20150102323
    Abstract: A light-emitting device includes: a light-emitting element which is disposed in a display region of a base body and includes a first electrode, a second electrode, and a light-emitting functional layer; a first conductor; a first insulating layer which covers the first conductor; a second conductor; and a second insulating layer which covers the second conductor. The second electrode is formed on a surface of the first insulating layer and is electrically connected to the first conductor via a first conduction hole of the first insulating layer, the first conductor is formed on a surface of the second insulating layer and is electrically connected to the second conductor via a second conduction hole of the second insulating layer, and the first conduction hole and the second conduction hole are configured not to overlap each other in a plan view.
    Type: Application
    Filed: September 30, 2014
    Publication date: April 16, 2015
    Inventors: Takeshi KOSHIHARA, Hitoshi OTA, Ryoichi NOZAWA
  • Publication number: 20150069363
    Abstract: On a semiconductor substrate, a plurality of transistors that includes a drive transistor which controls a drive current according to a potential of a gate, a light emitting element that emits a light having a brightness corresponding to the drive current, and an element isolation portion that electrically isolates each transistor are formed. The element isolation portion has a structure in which an insulator fills inside of a groove formed on the semiconductor substrate.
    Type: Application
    Filed: September 9, 2014
    Publication date: March 12, 2015
    Inventors: Hitoshi OTA, Ryoichi NOZAWA
  • Publication number: 20150060865
    Abstract: A light-emitting device includes a drive transistor for controlling the quantity of current supplied to a light-emitting element, a capacitor element electrically connected to a gate electrode of the drive transistor, and an electrical continuity portion for electrically connecting the drive transistor and the light-emitting element, these elements being disposed on a substrate. The electrical continuity portion is disposed on the side opposite to the capacitor element with the drive transistor disposed therebetween.
    Type: Application
    Filed: November 6, 2014
    Publication date: March 5, 2015
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takehiko KUBOTA, Eiji KANDA, Ryoichi NOZAWA
  • Publication number: 20150060807
    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: August 8, 2014
    Publication date: March 5, 2015
    Inventors: Takeshi KOSHIHARA, Ryoichi NOZAWA