Patents by Inventor Toshio Sasamoto

Toshio Sasamoto 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: 20070114926
    Abstract: An image display device is constituted such that a back substrate on which image signal lines, scanning signal lines and electron sources are arranged and a face substrate which has phosphor layers are hermetically sealed to each other by way of a frame body using a sealing material, and the inside of the image display device is formed into a vacuum. A length LSK of a second sealing region into which scanning signal lines hermetically penetrate is set larger than a length LDK of a first sealing region into which thin-film image signal lines hermetically penetrate and hence, it is possible to suppress the decrease of the degree of vacuum.
    Type: Application
    Filed: October 31, 2006
    Publication date: May 24, 2007
    Inventors: Yuuichi Kijima, Yoshiyuki Kaneko, Kenji Kato, Noriyuki Oroku, Toshio Sasamoto
  • Publication number: 20060226762
    Abstract: In a method for manufacturing an image display apparatus, in which a rear substrate and a front substrate are adhered and fixed at a predetermined positional relationship, with high productivity, two (2) lines of seal flit glass FT are applied on inner surfaces of the rear substrate SUB1 and the front substrate SUB2, where a sealing frame FR is bonded and fixed, along the frame sides, on both sides of an abutting surface (i.e., a vacuum side and an atmospheric side) of the sealing frame FR, and are baked, provisionally. The sealing frame FR is disposed between those two (2) lines of seal flit glass FT, and is baked, thereby melting down the seal flit glass for bonding and fixing thereof.
    Type: Application
    Filed: March 6, 2006
    Publication date: October 12, 2006
    Inventors: Toshio Sasamoto, Noriyuki Oroku, Yoshie Kodera
  • Publication number: 20060186788
    Abstract: An image display device according to the present invention includes a front-surface panel SUB2, a rear-surface panel SUB1, and an outer frame FR. Here, the front-surface panel SUB2, the rear-surface panel SUB1, and the outer frame FR are fixed to each other by frit glass FT. Also, an internal hermetically-closed space surrounded by the front-surface panel SUB2, the rear-surface panel SUB1, and the outer frame FR is maintained at a lower pressure than that of the outside. Moreover, the outer frame FR is formed of a sintered body of glass paste.
    Type: Application
    Filed: February 9, 2006
    Publication date: August 24, 2006
    Applicant: Hitachi, Ltd.
    Inventors: Toshio Sasamoto, Shigemi Hirasawa, Yuuichi Kijima, Noriyuki Oroku
  • Publication number: 20060138953
    Abstract: An envelope is constituted by sandwiching and fixing a frame between a back substrate having an electron emission region and a face substrate having an image display region. A recessed portion is formed in a corner portion of the frame, a getter assembly is arranged in the recessed portion, and the getter assembly is fixed to the frame. Due to such a constitution, it is possible to provide a display device which can install a sufficient getter without interrupting the narrowing of a picture frame.
    Type: Application
    Filed: December 28, 2005
    Publication date: June 29, 2006
    Inventors: Kenji Kato, Yoshie Kodera, Toshio Sasamoto
  • Patent number: 4702555
    Abstract: An objective lens drive unit including a bobbin wound with driving coils and having mounted thereon a lens for transmitting a light beam which is controlled by drive currents flowing through the coils is used for controlling the focussing/tracking of the light beam on a recording medium. The bobbin comprises a hole mounting the objective lens, first recesses formed in opposed side walls of the bobbin substantially in parallel with the mounting hole for accommodating one of the coils wound substantially perpendicularly to the mounting hole, notches formed in the first recesses parallel with the mounting hole for accommodating passing terminal end/start portions of the coil, and second recesses formed along two opposed sides of the opposite side walls for accommodating the other coils wound so as to intersect each other at the other pair of opposite side walls of the bobbin.
    Type: Grant
    Filed: May 8, 1985
    Date of Patent: October 27, 1987
    Assignee: Hitachi, Ltd.
    Inventors: Akira Iguma, Tadashi Okuda, Kouichi Ieki, Toshio Sasamoto