Patents by Inventor Hisakatsu Sato

Hisakatsu Sato 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: 10991779
    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: December 2, 2019
    Date of Patent: April 27, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Ryoichi Nozawa, Takeshi Koshihara, Hisakatsu Sato
  • 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: 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: 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
  • Patent number: 10115778
    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: March 16, 2017
    Date of Patent: October 30, 2018
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Ryoichi Nozawa, Takeshi Koshihara, Hisakatsu Sato
  • Publication number: 20180240854
    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: March 16, 2017
    Publication date: August 23, 2018
    Inventors: Ryoichi NOZAWA, Takeshi KOSHIHARA, Hisakatsu SATO
  • Patent number: 9859359
    Abstract: A first impurity diffusion region is provided within a semiconductor substrate, a second impurity diffusion region is provided within the first impurity diffusion region, a third impurity diffusion region is provided within the second impurity diffusion region, a first portion of a fourth impurity diffusion region is provided within the second impurity diffusion region so as to be spaced from the third impurity diffusion region, and a second portion of the fourth impurity diffusion region is provided in a third portion of the first impurity diffusion region on a side of a surface of the semiconductor substrate, a first contact is provided so as to be in contact with the second portion, the first contact and the third portion overlap in plan view, and a first power supply is connected to the third impurity diffusion region.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: January 2, 2018
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Masaki Okuyama, Hisakatsu Sato
  • Patent number: 9634067
    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: January 8, 2016
    Date of Patent: April 25, 2017
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Ryoichi Nozawa, Takeshi Koshihara, Hisakatsu Sato
  • Patent number: 9502482
    Abstract: An electro-optical device includes a reflective layer, a light emitting element including a light emitting layer formed between an anode and a cathode, and a driving transistor configured to control a current flowing through the light emitting element. In the same layer as the reflective layer, a relay electrode included in a current path from the driving transistor to the anode is formed with a gap between the relay electrode and the reflective layer. A contact electrode electrically connecting the relay electrode and the anode is formed as a light shielding layer that blocks light entering the gap.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: November 22, 2016
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takeshi Koshihara, Hisakatsu Sato, Takeshi Nomura
  • Publication number: 20160204095
    Abstract: A first impurity diffusion region is provided within a semiconductor substrate, a second impurity diffusion region is provided within the first impurity diffusion region, a third impurity diffusion region is provided within the second impurity diffusion region, a first portion of a fourth impurity diffusion region is provided within the second impurity diffusion region so as to be spaced from the third impurity diffusion region, and a second portion of the fourth impurity diffusion region is provided in a third portion of the first impurity diffusion region on a side of a surface of the semiconductor substrate, a first contact is provided so as to be in contact with the second portion, the first contact and the third portion overlap in plan view, and a first power supply is connected to the third impurity diffusion region.
    Type: Application
    Filed: February 22, 2016
    Publication date: July 14, 2016
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Masaki OKUYAMA, Hisakatsu SATO
  • 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: 9312329
    Abstract: A first impurity diffusion region is provided within a semiconductor substrate, a second impurity diffusion region is provided within the first impurity diffusion region, a third impurity diffusion region is provided within the second impurity diffusion region, a first portion of a fourth impurity diffusion region is provided within the second impurity diffusion region so as to be spaced from the third impurity diffusion region, and a second portion of the fourth impurity diffusion region is provided in a third portion of the first impurity diffusion region on a side of a surface of the semiconductor substrate, a first contact is provided so as to be in contact with the second portion, the first contact and the third portion overlap in plan view, and a first power supply is connected to the third impurity diffusion region.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: April 12, 2016
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Masaki Okuyama, Hisakatsu Sato
  • 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: 20160013258
    Abstract: An electro-optical device includes a reflective layer, a light emitting element including a light emitting layer formed between an anode and a cathode, and a driving transistor configured to control a current flowing through the light emitting element. In the same layer as the reflective layer, a relay electrode included in a current path from the driving transistor to the anode is formed with a gap between the relay electrode and the reflective layer. A contact electrode electrically connecting the relay electrode and the anode is formed as a light shielding layer that blocks light entering the gap.
    Type: Application
    Filed: September 25, 2015
    Publication date: January 14, 2016
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takeshi KOSHIHARA, Hisakatsu SATO, Takeshi NOMURA
  • Patent number: 9184347
    Abstract: An electro-optical device includes a reflective layer, a light emitting element including a light emitting layer formed between an anode and a cathode, and a driving transistor configured to control a current flowing through the light emitting element. In the same layer as the reflective layer, a relay electrode included in a current path from the driving transistor to the anode is formed with a gap between the relay electrode and the reflective layer. A contact electrode electrically connecting the relay electrode and the anode is formed as a light shielding layer that blocks light entering the gap.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: November 10, 2015
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takeshi Koshihara, Hisakatsu Sato, Takeshi Nomura
  • Patent number: 9153796
    Abstract: The fabrication method for an organic EL device according to the invention includes: forming a third insulating layer on a first insulating layer; removing the third insulating layer in a first pixel region by etching the third insulating layer; forming a second insulating layer that has different thicknesses in a first pixel and a second pixel and has a flat first surface by forming a precursor insulating layer to continuously cover a first reflection film and a second reflection film and then planarizing an upper surface of the precursor insulating layer; and forming a first pixel electrode and a second pixel electrode on the first surface of the second insulating layer. The first insulating layer is slower in the rate at which the layer is removed by etching than the third insulating layer.
    Type: Grant
    Filed: December 31, 2014
    Date of Patent: October 6, 2015
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hisakatsu Sato, Satoshi Murata
  • Publication number: 20150118774
    Abstract: The fabrication method for an organic EL device according to the invention includes: forming a third insulating layer on a first insulating layer; removing the third insulating layer in a first pixel region by etching the third insulating layer; forming a second insulating layer that has different thicknesses in a first pixel and a second pixel and has a flat first surface by forming a precursor insulating layer to continuously cover a first reflection film and a second reflection film and then planarizing an upper surface of the precursor insulating layer; and forming a first pixel electrode and a second pixel electrode on the first surface of the second insulating layer. The first insulating layer is slower in the rate at which the layer is removed by etching than the third insulating layer.
    Type: Application
    Filed: December 31, 2014
    Publication date: April 30, 2015
    Inventors: Hisakatsu SATO, Satoshi MURATA
  • Patent number: 8956898
    Abstract: The fabrication method for an organic EL device according to the invention includes: forming a third insulating layer on a first insulating layer; removing the third insulating layer in a first pixel region by etching the third insulating layer; forming a second insulating layer that has different thicknesses in a first pixel and a second pixel and has a flat first surface by forming a precursor insulating layer to continuously cover a first reflection film and a second reflection film and then planarizing an upper surface of the precursor insulating layer; and forming a first pixel electrode and a second pixel electrode on the first surface of the second insulating layer. The first insulating layer is slower in the rate at which the layer is removed by etching than the third insulating layer.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: February 17, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Hisakatsu Sato, Satoshi Murata
  • Publication number: 20140361316
    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: May 30, 2014
    Publication date: December 11, 2014
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Ryoichi NOZAWA, Takeshi KOSHIHARA, Hisakatsu SATO
  • Publication number: 20140312462
    Abstract: A first impurity diffusion region is provided within a semiconductor substrate, a second impurity diffusion region is provided within the first impurity diffusion region, a third impurity diffusion region is provided within the second impurity diffusion region, a first portion of a fourth impurity diffusion region is provided within the second impurity diffusion region so as to be spaced from the third impurity diffusion region, and a second portion of the fourth impurity diffusion region is provided in a third portion of the first impurity diffusion region on a side of a surface of the semiconductor substrate, a first contact is provided so as to be in contact with the second portion, the first contact and the third portion overlap in plan view, and a first power supply is connected to the third impurity diffusion region.
    Type: Application
    Filed: November 29, 2012
    Publication date: October 23, 2014
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Masaki Okuyama, Hisakatsu Sato