Patents by Inventor Takeshi Umegaki

Takeshi Umegaki 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).

  • Method of producing liquid crystal display devices
    Patent number: 7407559
    Abstract: A method of producing a liquid crystal display device. A first substrate having a liquid crystal dripped thereon, and a second substrate, are arranged in a vacuum chamber. The first substrate is held by a first electrostatic chuck and the second substrate is held by a second electrostatic chuck. The second substrate is urged onto the first substrate to bond the first substrate and the second substrate together. The bonded first and second substrates are then peeled off from the electrostatic chucks. A resin sheet is arranged on the second electrostatic chuck, so that the bonded first and second substrates do not cling to the second electrostatic chuck when peeled off.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: August 5, 2008
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Satoshi Murata, Masahiro Miyoshi, Takeshi Umegaki
  • Method of producing liquid crystal display devices
    Publication number: 20040226652
    Abstract: A method of producing a liquid crystal display device. A first substrate having a liquid crystal dripped thereon, and a second substrate, are arranged in a vacuum chamber. The first substrate is held by a first electrostatic chuck and the second substrate is held by a second electrostatic chuck. The second substrate is urged onto the first substrate to bond the first substrate and the second substrate together. The bonded first and second substrates are then peeled off from the electrostatic chucks. A resin sheet is arranged on the second electrostatic chuck, so that the bonded first and second substrates do not cluig to the second electrostatic chuck when peeled off.
    Type: Application
    Filed: March 12, 2004
    Publication date: November 18, 2004
    Applicant: FUJITSU DISPLAY TECHNOLOGIES CORPORATION
    Inventors: Satoshi Murata, Masahiro Miyoshi, Takeshi Umegaki
  • Display device and its manufacture
    Publication number: 20030117572
    Abstract: A method of manufacturing a display device includes the steps of: (a) capturing an insulating granular spacer with an optical forceps apparatus which utilizes a capture force of a laser beam; (b) disposing the insulating granular spacer captured with the optical forceps apparatus on one of a pair of display device substrates at a predetermined position; and (c) stacking the pair of display device substrates via the insulating granular spacer. A display device is provided which can set the distance between a pair of display device substrates uniform and suppress the display quality from being lowered.
    Type: Application
    Filed: December 9, 2002
    Publication date: June 26, 2003
    Applicant: FUJITSU DISPLAY TECHNOLOGIES CORPORATION
    Inventors: Yasufumi Kanayama, Kiyoshi Ozaki, Makoto Morishige, Takeshi Umegaki