Patents by Inventor Yoshihiko Toyoshima

Yoshihiko Toyoshima 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: 11219123
    Abstract: Provided is a printed circuit board which includes: a first dielectric layer including a first principal surface and a second principal surface on a side opposite to the first principal surface; a first adhesive layer formed on the first principal surface; a first metal foil pattern formed on the first adhesive layer and forming a signal line; and a second metal foil pattern formed on the second principal surface and forming a ground layer, in which the first metal foil pattern has a higher specific conductivity than a specific conductivity of the second metal foil pattern.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: January 4, 2022
    Assignee: NIPPON MEKTRON, LTD.
    Inventors: Fumihiko Matsuda, Yoshihiko Narisawa, Kenji Kumagai, Daisuke Shiokawa, Yuki Ogi, Akihiko Toyoshima, Masami Uchino, Isao Arase, Hiroshi Takeuchi
  • Patent number: 8390560
    Abstract: A level shift circuit includes: a first and a second output transistor outputting voltages derived from a first and a second power source voltage, respectively; a first and a second input transistor outputting, based on a first input pulse signal, a first voltage for turning ON the first output transistor and a second voltage for turning OFF the second output transistor, respectively; a third and a fourth input transistor outputting, based on a second input pulse signal, a third voltage for turning OFF the first output transistor and a fourth voltage for turning ON the second output transistor, respectively; a first bootstrap circuit enlarging an amplitude of the first voltage and supplying the same to the first output transistor; and a first voltage compensation circuit, based on a third input pulse signal, making, at an end timing of the first input pulse signal, a voltage change in a direction opposite to that of a voltage fluctuation caused in the first voltage due to a parasitic capacitance in the first
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: March 5, 2013
    Assignee: Sony Corporation
    Inventors: Yoshihiko Toyoshima, Seiichiro Jinta
  • Patent number: 8310470
    Abstract: Disclosed herein is a display apparatus including: an available pixel section; a plurality of scan lines; a plurality of capacitor lines; a plurality of signal lines; a driving circuit; a monitor circuit having a first monitor pixel section and a second monitor pixel section; at least two of following three correction systems of a capacitor-signal correction system, a video-signal correction system and the second monitor pixel section, and a common-voltage correction system; and a switch for selectively supplying pixel electric potentials detected by the first monitor pixel section and the second monitor pixel section to a desired one of the two or three correction systems.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: November 13, 2012
    Assignee: Sony Corporation
    Inventors: Yoshihiko Toyoshima, Naoyuki Itakura, Tomoyuki Fukano
  • Publication number: 20120169964
    Abstract: A display device includes a display section, an optical liquid crystal panel having a first and second transparent substrates disposed to face each other, and a liquid crystal layer enclosed between the first and second transparent substrates, and a light source. The display section is bonded to an external face of the first transparent substrate of the optical liquid crystal panel, a plurality of first transparent electrodes are provided on an internal face of the first transparent substrate, a second transparent electrode is provided on an internal face of the second transparent substrate, and the liquid crystal layer and the second transparent electrode are provided to occupy entirety of an effective region corresponding to an effective image area of the display section.
    Type: Application
    Filed: November 29, 2011
    Publication date: July 5, 2012
    Applicant: Sony Corporation
    Inventors: Tsuyoshi Ohyama, Shiichiro Sarai, Yoshihiko Toyoshima, Fumihito Shibano
  • Patent number: 7973782
    Abstract: Disclosed herein is a display apparatus including: an available pixel section having a plurality of available pixel circuits; a plurality of scan lines; a plurality of capacitor lines; a plurality of signal lines; a driving circuit; and a monitor circuit wherein each of the available pixel circuits laid out on the available pixel section includes a display element having first and second pixel electrodes and a storage capacitor having first and second electrodes, in each of the available pixel circuits, the first pixel electrode and the first electrode are connected to one terminal of a switching device, in each of the available pixel circuits provided on any individual one of the rows, the second electrode is connected to the capacitor line provided for the individual row, and the common voltage signal with the level changing at time intervals determined in advance is supplied to the second pixel electrode of each of the display elements.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: July 5, 2011
    Assignee: Sony Corporation
    Inventors: Naoyuki Itakura, Yoshihiko Toyoshima, Tomoyuki Fukano, Satoshi Ono, Daisuke Ito, Yusuke Takahashi, Takeya Takeuchi, Yoshitoshi Kida
  • Publication number: 20110157145
    Abstract: A level shift circuit includes: a first and a second output transistor outputting voltages derived from a first and a second power source voltage, respectively; a first and a second input transistor outputting, based on a first input pulse signal, a first voltage for turning ON the first output transistor and a second voltage for turning OFF the second output transistor, respectively; a third and a fourth input transistor outputting, based on a second input pulse signal, a third voltage for turning OFF the first output transistor and a fourth voltage for turning ON the second output transistor, respectively; a first bootstrap circuit enlarging an amplitude of the first voltage and supplying the same to the first output transistor; and a first voltage compensation circuit, based on a third input pulse signal, making, at an end timing of the first input pulse signal, a voltage change in a direction opposite to that of a voltage fluctuation caused in the first voltage due to a parasitic capacitance in the first
    Type: Application
    Filed: December 15, 2010
    Publication date: June 30, 2011
    Applicant: SONY CORPORATION
    Inventors: Yoshihiko Toyoshima, Seiichiro Jinta
  • Patent number: 7961167
    Abstract: A display device and mobile terminal are provided. The display device can narrow the pitch, narrow the frame, and further reduce power consumption. The display device includes a display area; a vertical drive circuit; a first horizontal drive circuit converting input first and second digital image data to analog image signals, and supplying the same to a data line selected by the vertical drive circuit; and a second horizontal drive circuit converting input third digital image data to an analog image signal, and supplying the same to a data line selected by the vertical drive circuit. The first horizontal drive circuit includes a sampling latch circuit, a second latch circuit, a digital/analog conversion circuit, and a line selector for selecting the first and second digital image data in a time division manner in a predetermined period and outputting the same to the data line.
    Type: Grant
    Filed: December 8, 2005
    Date of Patent: June 14, 2011
    Assignee: Sony Corporation
    Inventors: Yoshitoshi Kida, Yoshiharu Nakajima, Masaki Murase, Yoshihiko Toyoshima, Kazuya Nomura, Masaaki Tonogai, Daisuke Ito
  • Patent number: 7928974
    Abstract: An active-matrix liquid crystal display device has pixels arranged in a matrix which each include a thin film transistor (TFT) as an active element. When the device is in a power-off state, TFTs in all the pixels are switched on, and all horizontal switches are turned on so that all data lines are supplied with a potential equal to the potential of common electrodes of the pixels. This forms a discharging path for discharging residual charge in all the pixels, and the discharging path can instantaneously discharge the residual charges.
    Type: Grant
    Filed: August 9, 2007
    Date of Patent: April 19, 2011
    Assignee: Sony Corporation
    Inventors: Noboru Toyozawa, Yoshiharu Nakajima, Yoshihiko Toyoshima
  • Publication number: 20090147164
    Abstract: Disclosed herein is a display apparatus including: an available pixel section; a plurality of scan lines; a plurality of capacitor lines; a plurality of signal lines; a driving circuit; a monitor circuit having a first monitor pixel section and a second monitor pixel section; at least two of following three correction systems of a capacitor-signal correction system, a video-signal correction system and the second monitor pixel section, and a common-voltage correction system; and a switch for selectively supplying pixel electric potentials detected by the first monitor pixel section and the second monitor pixel section to a desired one of the two or three correction systems.
    Type: Application
    Filed: August 28, 2008
    Publication date: June 11, 2009
    Applicant: Sony Corporation
    Inventors: Yoshihiko Toyoshima, Naoyuki Itakura, Tomoyuki Fukano
  • Publication number: 20090128527
    Abstract: Disclosed herein is a display apparatus including: an available pixel section having a plurality of available pixel circuits; a plurality of scan lines; a plurality of capacitor lines; a plurality of signal lines; a driving circuit; and a monitor circuit wherein each of the available pixel circuits laid out on the available pixel section includes a display element having first and second pixel electrodes and a storage capacitor having first and second electrodes, in each of the available pixel circuits, the first pixel electrode and the first electrode are connected to one terminal of a switching device, in each of the available pixel circuits provided on any individual one of the rows, the second electrode is connected to the capacitor line provided for the individual row, and the common voltage signal with the level changing at time intervals determined in advance is supplied to the second pixel electrode of each of the display elements.
    Type: Application
    Filed: August 28, 2008
    Publication date: May 21, 2009
    Applicant: Sony Corporation
    Inventors: Naoyuki Itakura, Yoshihiko Toyoshima, Tomoyuki Fukano, Satoshi Ono, Daisuke Ito, Yusuke Takahashi, Takeya Takeuchi, Yoshitoshi Kida
  • Publication number: 20070290968
    Abstract: An active-matrix liquid crystal display device has pixels arranged in a matrix which each include a thin film transistor (TFT) as an active element. When the device is in a power-off state, TFTs in all the pixels are switched on, and all horizontal switches are turned on so that all data lines are supplied with a potential equal to the potential of common electrodes of the pixels. This forms a discharging path for discharging residual charge in all the pixels, and the discharging path can instantaneously discharge the residual charges.
    Type: Application
    Filed: August 9, 2007
    Publication date: December 20, 2007
    Inventors: Noboru Toyozawa, Yoshiharu Nakajima, Yoshihiko Toyoshima
  • Patent number: 7271801
    Abstract: An active-matrix liquid crystal display device has pixels arranged in a matrix which each include a thin film transistor (TFT) as an active element. When the device is in a power-off state, TFTs in all the pixels are switched on, and all horizontal switches are turned on so that all data lines are supplied with a potential equal to the potential of common electrodes of the pixels. This forms a discharging path for discharging residual charge in all the pixels, and the discharging path can instantaneously discharge the residual charges.
    Type: Grant
    Filed: July 11, 2003
    Date of Patent: September 18, 2007
    Assignee: Sony Corporation
    Inventors: Noboru Toyozawa, Yoshiharu Nakajima, Yoshihiko Toyoshima
  • Publication number: 20060139286
    Abstract: A display device and mobile terminal are provided.
    Type: Application
    Filed: December 8, 2005
    Publication date: June 29, 2006
    Inventors: Yoshitoshi Kida, Yoshiharu Nakajima, Masaki Murase, Yoshihiko Toyoshima, Kazuya Nomura, Masaaki Tonogai, Daisuke Ito
  • Publication number: 20040104908
    Abstract: An active-matrix liquid crystal display device has pixels arranged in a matrix which each include a thin film transistor (TFT) as an active element. When the device is in a power-off state, TFTs in all the pixels are switched on, and all horizontal switches are turned on so that all data lines are supplied with a potential equal to the potential of common electrodes of the pixels. This forms a discharging path for discharging residual charge in all the pixels, and the discharging path can instantaneously discharge the residual charges.
    Type: Application
    Filed: July 11, 2003
    Publication date: June 3, 2004
    Inventors: Noboru Toyozawa, Yoshiharu Nakajima, Yoshihiko Toyoshima