Patents by Inventor Toshiyuki Kasai

Toshiyuki Kasai 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: 20240071322
    Abstract: An electro-optical device is provided with a plurality of data lines, a plurality of potential lines supplied with a predetermined potential, a driving transistor controlling a current level according to the voltage between the gate and the source, a first storage capacitor which holds the voltage between the gate and a source of the driving transistor, and a light-emitting element. One data line among the plurality of data lines and one potential line among the plurality of potential lines are arranged to be adjacent to each other, and a second storage capacitor holding the potential of the one data line is formed by the one data line and the one potential line.
    Type: Application
    Filed: November 8, 2023
    Publication date: February 29, 2024
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Toshiyuki KASAI, Takeshi NOMURA
  • Patent number: 11842697
    Abstract: An electro-optical device is provided with a plurality of data lines, a plurality of potential lines supplied with a predetermined potential, a driving transistor controlling a current level according to the voltage between the gate and the source, a first storage capacitor which holds the voltage between the gate and a source of the driving transistor, and a light-emitting element. One data line among the plurality of data lines and one potential line among the plurality of potential lines are arranged to be adjacent to each other, and a second storage capacitor holding the potential of the one data line is formed by the one data line and the one potential line.
    Type: Grant
    Filed: April 27, 2023
    Date of Patent: December 12, 2023
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Toshiyuki Kasai, Takeshi Nomura
  • Publication number: 20230260467
    Abstract: An electro-optical device is provided with a plurality of data lines, a plurality of potential lines supplied with a predetermined potential, a driving transistor controlling a current level according to the voltage between the gate and the source, a first storage capacitor which holds the voltage between the gate and a source of the driving transistor, and a light-emitting element. One data line among the plurality of data lines and one potential line among the plurality of potential lines are arranged to be adjacent to each other, and a second storage capacitor holding the potential of the one data line is formed by the one data line and the one potential line.
    Type: Application
    Filed: April 27, 2023
    Publication date: August 17, 2023
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Toshiyuki KASAI, Takeshi NOMURA
  • Patent number: 11688354
    Abstract: An electro-optical device is provided with a plurality of data lines, a plurality of potential lines supplied with a predetermined potential, a driving transistor controlling a current level according to the voltage between the gate and the source, a first storage capacitor which holds the voltage between the gate and a source of the driving transistor, and a light-emitting element. One data line among the plurality of data lines and one potential line among the plurality of potential lines are arranged to be adjacent to each other, and a second storage capacitor holding the potential of the one data line is formed by the one data line and the one potential line.
    Type: Grant
    Filed: October 7, 2022
    Date of Patent: June 27, 2023
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Toshiyuki Kasai, Takeshi Nomura
  • Publication number: 20230026639
    Abstract: An electro-optical device is provided with a plurality of data lines, a plurality of potential lines supplied with a predetermined potential, a driving transistor controlling a current level according to the voltage between the gate and the source, a first storage capacitor which holds the voltage between the gate and a source of the driving transistor, and a light-emitting element. One data line among the plurality of data lines and one potential line among the plurality of potential lines are arranged to be adjacent to each other, and a second storage capacitor holding the potential of the one data line is formed by the one data line and the one potential line.
    Type: Application
    Filed: October 7, 2022
    Publication date: January 26, 2023
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Toshiyuki KASAI, Takeshi NOMURA
  • Patent number: 11508321
    Abstract: An electro-optical device is provided with a plurality of data lines, a plurality of potential lines supplied with a predetermined potential, a driving transistor controlling a current level according to the voltage between the gate and the source, a first storage capacitor which holds the voltage between the gate and a source of the driving transistor, and a light-emitting element. One data line among the plurality of data lines and one potential line among the plurality of potential lines are arranged to be adjacent to each other, and a second storage capacitor holding the potential of the one data line is formed by the one data line and the one potential line.
    Type: Grant
    Filed: May 24, 2022
    Date of Patent: November 22, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Toshiyuki Kasai, Takeshi Nomura
  • Publication number: 20220284866
    Abstract: An electro-optical device is provided with a plurality of data lines, a plurality of potential lines supplied with a predetermined potential, a driving transistor controlling a current level according to the voltage between the gate and the source, a first storage capacitor which holds the voltage between the gate and a source of the driving transistor, and a light-emitting element. One data line among the plurality of data lines and one potential line among the plurality of potential lines are arranged to be adjacent to each other, and a second storage capacitor holding the potential of the one data line is formed by the one data line and the one potential line.
    Type: Application
    Filed: May 24, 2022
    Publication date: September 8, 2022
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Toshiyuki KASAI, Takeshi NOMURA
  • Patent number: 11355072
    Abstract: An electro-optical device is provided with a plurality of data lines, a plurality of potential lines supplied with a predetermined potential, a driving transistor controlling a current level according to the voltage between the gate and the source, a first storage capacitor which holds the voltage between the gate and a source of the driving transistor, and a light-emitting element. One data line among the plurality of data lines and one potential line among the plurality of potential lines are arranged to be adjacent to each other, and a second storage capacitor holding the potential of the one data line is formed by the one data line and the one potential line.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: June 7, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Toshiyuki Kasai, Takeshi Nomura
  • Patent number: 11048084
    Abstract: In a first display device and a second display device of a display mechanism, a first video image and a second video image having mutually different display contents are visually recognized, and further, display positions of the first video image and the second video image can be changed by first and second posture adjustment mechanisms that are a posture adjustment mechanism.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: June 29, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takashi Takeda, Toshiyuki Kasai
  • Patent number: 11025894
    Abstract: In a left and right pair of a first display device and a second display device that perform repositionable display, mutually different display contents can be visually recognized as a first video image and a second video image. Further, a display control portion controls the display content in accordance with at least one of the first video image and the second video image.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: June 1, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Takashi Takeda, Toshiyuki Kasai, Masayuki Takagi, Toshiaki Miyao, Tokito Yamaguchi
  • Publication number: 20210005147
    Abstract: An electro-optical device is provided with a plurality of data lines, a plurality of potential lines supplied with a predetermined potential, a driving transistor controlling a current level according to the voltage between the gate and the source, a first storage capacitor which holds the voltage between the gate and a source of the driving transistor, and a light-emitting element.. One data line among the plurality of data lines and one potential line among the plurality of potential lines are arranged to be adjacent to each other, and a second storage capacitor holding the potential of the one data line is formed by the one data line and the one potential line.
    Type: Application
    Filed: September 18, 2020
    Publication date: January 7, 2021
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Toshiyuki KASAI, Takeshi NOMURA
  • Patent number: 10810947
    Abstract: An electro-optical device is provided with a plurality of data lines, a plurality of potential lines supplied with a predetermined potential, a driving transistor controlling a current level according to the voltage between the gate and the source, a first storage capacitor which holds the voltage between the gate and a source of the driving transistor, and a light-emitting element. One data line among the plurality of data lines and one potential line among the plurality of potential lines are arranged to be adjacent to each other, and a second storage capacitor holding the potential of the one data line is formed by the one data line and the one potential line.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: October 20, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Toshiyuki Kasai, Takeshi Nomura
  • Publication number: 20200209625
    Abstract: In a first display device and a second display device of a display mechanism, a first video image and a second video image having mutually different display contents are visually recognized, and further, display positions of the first video image and the second video image can be changed by first and second posture adjustment mechanisms that are a posture adjustment mechanism.
    Type: Application
    Filed: December 26, 2019
    Publication date: July 2, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takashi TAKEDA, Toshiyuki KASAI
  • Publication number: 20200213580
    Abstract: In a left and right pair of a first display device and a second display device that perform repositionable display, mutually different display contents can be visually recognized as a first video image and a second video image. Further, a display control portion controls the display content in accordance with at least one of the first video image and the second video image.
    Type: Application
    Filed: December 27, 2019
    Publication date: July 2, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takashi TAKEDA, Toshiyuki KASAI, Masayuki TAKAGI, Toshiaki MIYAO, Tokito YAMAGUCHI
  • Publication number: 20200020284
    Abstract: An electro-optical device is provided with a plurality of data lines, a plurality of potential lines supplied with a predetermined potential, a driving transistor controlling a current level according to the voltage between the gate and the source, a first storage capacitor which holds the voltage between the gate and a source of the driving transistor, and a light-emitting element. One data line among the plurality of data lines and one potential line among the plurality of potential lines are arranged to be adjacent to each other, and a second storage capacitor holding the potential of the one data line is formed by the one data line and the one potential line.
    Type: Application
    Filed: September 27, 2019
    Publication date: January 16, 2020
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Toshiyuki KASAI, Takeshi NOMURA
  • Patent number: 10453400
    Abstract: An electro-optical device is provided with a plurality of data lines, a plurality of potential lines supplied with a predetermined potential, a driving transistor controlling a current level according to the voltage between the gate and the source, a first storage capacitor which holds the voltage between the gate and a source of the driving transistor, and a light-emitting element. One data line among the plurality of data lines and one potential line among the plurality of potential lines are arranged to be adjacent to each other, and a second storage capacitor holding the potential of the one data line is formed by the one data line and the one potential line.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: October 22, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Toshiyuki Kasai, Takeshi Nomura
  • Patent number: 10417963
    Abstract: A scanning line driving circuit selects arbitrary one of a plurality of pixels and causes the pixel to perform a current value setting operation of setting a current value of the driving current to be supplied to the light emitting element of the pixel in a frame period before the pixel is selected again and a light emission operation of emitting light by supplying the driving current to the light emitting element. The scanning line driving circuit controls, in common with the plurality of pixels, a duty ratio corresponding to the frame period of the light emission period in which the light emission operation is performed. The scanning line driving circuit disperses time differences between a current value setting timing and a start timing of the light emission period in the plurality of pixels when the duty ratio is equal to or smaller than a predetermined value.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: September 17, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Toshiyuki Kasai
  • Publication number: 20190251910
    Abstract: An electro-optical device is provided with a plurality of data lines, a plurality of potential lines supplied with a predetermined potential, a driving transistor controlling a current level according to the voltage between the gate and the source, a first storage capacitor which holds the voltage between the gate and a source of the driving transistor, and a light-emitting element. One data line among the plurality of data lines and one potential line among the plurality of potential lines are arranged to be adjacent to each other, and a second storage capacitor holding the potential of the one data line is formed by the one data line and the one potential line.
    Type: Application
    Filed: April 24, 2019
    Publication date: August 15, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Toshiyuki KASAI, Takeshi NOMURA
  • Patent number: 10311800
    Abstract: An electro-optical device is provided with a plurality of data lines, a plurality of potential lines supplied with a predetermined potential, a driving transistor controlling a current level according to the voltage between the gate and the source, a first storage capacitor which holds the voltage between the gate and a source of the driving transistor, and a light-emitting element. One data line among the plurality of data lines and one potential line among the plurality of potential lines are arranged to be adjacent to each other, and a second storage capacitor holding the potential of the one data line is formed by the one data line and the one potential line.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: June 4, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Toshiyuki Kasai, Takeshi Nomura
  • Patent number: 10176754
    Abstract: An electro-optical apparatus includes a plurality of display portions and a control portion. The respective display portions have a plurality of pixels. Each of the plurality of pixels has a light-emitting element that emits light using current that is input at a predetermined cycle from a power supply line in a period from selecting a scanning line until selecting the subsequent scanning line. The control portion controls the display portions such that one of an input number of times of current from the power supply line to the light-emitting element in the period and an input time of current from the power supply line to the light-emitting element in each of the predetermined cycles changes in conjunction with each other in the display portions that are different from each other and the other changes independently from each other in the display portions that are different from each other.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: January 8, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Toshiyuki Kasai