Patents by Inventor Hiroto Akiyama

Hiroto Akiyama 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: 7782346
    Abstract: A liquid crystal display device includes a plurality of pixels that are arranged in matrix so as to form a plurality of rows extending in an X direction and a plurality of columns extending in a Y direction. Each pixel includes a liquid crystal layer and a plurality of electrodes for applying a voltage to the liquid crystal layer, and is split into at least one bright subpixel, which has a luminance higher than a certain luminance produced by a display signal voltage supplied, and at least one dark subpixel that has a lower luminance than the certain luminance. The area of the at least one bright subpixel is smaller than that of the at least one dark subpixel. If the at least one bright subpixel and the at least one dark subpixel are arranged in the Y direction in each pixel, two closest pixels that belong to the same row to display the same color have geometric centroids with mutually different Y coordinates.
    Type: Grant
    Filed: September 29, 2005
    Date of Patent: August 24, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Hiroto Akiyama
  • Publication number: 20100045906
    Abstract: The present invention has an object to provide an active matrix substrate, a liquid crystal display panel, a liquid crystal display element, a liquid crystal display device, and a substrate for liquid crystal display panel, each capable of suppressing generation of uneven cell gap without increase in a parasitic capacitance of a wiring. The active matrix substrate of the present invention is an active matrix substrate including a spacer on a substrate, wherein the spacer includes a base layer and a covering layer, the base layer being buried in the covering layer.
    Type: Application
    Filed: October 12, 2007
    Publication date: February 25, 2010
    Inventors: Tsuyoshi Tokuda, Hiroto Akiyama, Akihiro Shoraku, Toshihide Tsubata, Yukio Kurozumi
  • Publication number: 20100033666
    Abstract: A display panel substrate in which parasitic capacitances are provided to data signal lines and any short which occurs between the data signal line and a conductor film can be corrected, and a display panel having the substrate. A plurality of strip conductors 1262 overlap with drawing lines 121 arranged to transmit data signals to data signal lines 111 with an insulating film 132 sandwiched therebetween, and the plurality of strip conductors 1262 are electrically connected by connecting portions 1263, 1264 and 1265 having portions which do not overlap with the drawing lines.
    Type: Application
    Filed: September 7, 2007
    Publication date: February 11, 2010
    Inventors: Hiroto Akiyama, Masahiro Matsuda
  • Publication number: 20090179375
    Abstract: The invention is to provide a sheet accumulation apparatus enabling to uniformly load tabbed sheets into a train of sheets for load and store the sheets on a tray. The sheet accumulation apparatus has a sheet outlet for successively discharging the sheets, a tray means for loading to hold the sheets thereon, a sheet carrier means for discharging the sheets from the sheet outlet to the side of a downstream, a sheet front end regulating means for colliding the sheets sent by the sheet carrier means against the regulating means at the sheet front ends and regulating them, and a sheet rear regulating means disposed to the tray means for regulating the positions of the sheets from the sheet outlet at the sheet rear ends.
    Type: Application
    Filed: September 27, 2007
    Publication date: July 16, 2009
    Applicants: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC., NISCA CORPORATION
    Inventors: Hitoshi Tamura, Toshio Shida, Hiroto Akiyama
  • Publication number: 20080088082
    Abstract: A sheet accumulation apparatus includes a tray moving device elevatably provided at an apparatus frame and having a fork member; a tray device detachably attached to the fork member; a driving device for elevating the tray moving device; and a carrier device having a hand truck frame with a fork member. An operation handle is connected to the hand truck frame for accommodating the tray device separated from the tray moving device to transport the tray device from the tray moving device. The tray moving device and the carrier device are structured so that the tray device is transferred between the tray moving device and the carrier device at an attachment/detachment position at which the tray moving device is lowered.
    Type: Application
    Filed: October 11, 2007
    Publication date: April 17, 2008
    Applicant: NISCA CORPORATION
    Inventors: Makoto Iino, Hiroto Akiyama, Tomohisa Shimizu, Masato Hosaka, Masaki Higuchi
  • Publication number: 20080049052
    Abstract: A liquid crystal display device includes a plurality of pixels that are arranged in matrix so as to form a plurality of rows extending in an X direction and a plurality of columns extending in a Y direction. Each pixel includes a liquid crystal layer and a plurality of electrodes for applying a voltage to the liquid crystal layer, and is split into at least one bright subpixel, which has a luminance higher than a certain luminance produced by a display signal voltage supplied, and at least one dark subpixel that has a lower luminance than the certain luminance. The area of the at least one bright subpixel is smaller than that of the at least one dark subpixel. If the at least one bright subpixel and the at least one dark subpixel are arranged in the Y direction in each pixel, two closest pixels that belong to the same row to display the same color have geometric centroids with mutually different Y coordinates.
    Type: Application
    Filed: September 29, 2005
    Publication date: February 28, 2008
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Hiroto Akiyama