Patents by Inventor Shigekuni Inoue

Shigekuni Inoue 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).

  • Vacuum degassing apparatus for molten glass
    Patent number: 6560996
    Abstract: Molten glass has a liquid level located at a higher level than lower ends of an uprising pipe and a downfalling. In addition, a contacting portion of the uprising pipe or the downfalling pipe and a brick receiver on an upstream or downstream pit for supporting the uprising or downfalling pipe, or a joint in the brick receiver is filled with sealing material.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: May 13, 2003
    Assignee: Asahi Glass Company Ltd.
    Inventors: Yusuke Takei, Shigekuni Inoue, Michito Sasaki, Yasuharu Hirabara, Atsushi Tanigaki, Mitsuo Sugimoto
  • Vacuum degassing apparatus for molten glass and method for building it
    Patent number: 6334336
    Abstract: A vacuum degassing apparatus comprises a path made of dense refractory bricks, the path including an inner surface brick layer, the refractory bricks in the inner surface brick layer having a flatness of 0.5 mm on contacting surfaces with one anther, and the path including a backup brick layer and a ramming material filling layer besides the inner surface brick layer.
    Type: Grant
    Filed: June 7, 1999
    Date of Patent: January 1, 2002
    Assignee: Asahi Glass Company Ltd.
    Inventors: Yusuke Takei, Michito Sasaki, Masataka Matsuwaki, Shigekuni Inoue, Atsushi Tanigaki, Mitsuo Sugimoto
  • Vacuum degassing apparatus for molten glass
    Publication number: 20010037661
    Abstract: Molten glass has a liquid level located at a higher level than lower ends of an uprising pipe and a downfalling. In addition, a contacting portion of the uprising pipe or the downfalling pipe and a brick receiver on an upstream or downstream pit for supporting the uprising or downfalling pipe, or a joint in the brick receiver is filled with sealing material.
    Type: Application
    Filed: May 17, 2001
    Publication date: November 8, 2001
    Applicant: Asahi Glass Company Ltd.
    Inventors: Yusuke Takei, Shigekuni Inoue, Michito Sasaki, Yasuharu Hirabara, Atsushi Tanigaki, Mitsuo Sugimoto
  • Vacuum degassing apparatus for molten glass
    Patent number: 6308534
    Abstract: Molten glass has a liquid level located at a higher level than lower ends of an uprising pipe and a downfalling. In addition, a contacting portion of the uprising pipe or the downfalling pipe and a brick receiver on an upstream or downstream pit for supporting the uprising or downfalling pipe, or a joint in the brick receiver is filled with sealing material.
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: October 30, 2001
    Assignee: Asahi Glass Company Ltd.
    Inventors: Yusuke Takei, Shigekuni Inoue, Michito Sasaki, Yasuharu Hirabara, Atsushi Tanigaki, Mitsuo Sugimoto
  • Vacuum gas releasing system
    Patent number: 6294005
    Abstract: The present invention provides a vacuum degassing system 10 having a leakage valve 48 installed between a condenser 46 and a vacuum pump 44, wherein even when the leakage valve 48 is opened, a vacuum degassing vessel 12 is not released to the atmosphere to thereby constantly maintain a temperature in the vacuum degassing vessel 12; and a large amount of volatile matters in the vacuum degassing vessel 12 are not discharged to a gas release pipe 34, whereby the vacuum degassing vessel 12 can be stably operated.
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: September 25, 2001
    Assignee: Asahi Glass Company Ltd.
    Inventors: Shigekuni Inoue, Kazuhiko Ishimura, Yusuke Takei, Kosei Uchino
  • Vacuum degassing apparatus for molten glass and method to rise vacuum degassing apparatus temperature
    Patent number: 6202445
    Abstract: Before operating a vacuum degassing apparatus for molten glass which has paths for molten glass made of refractory material, fuel is burned by temperature rising burners, and the burned gas is exhausted through an exhaust pipe which communicates to an upper end of a vacuum degassing vessel.
    Type: Grant
    Filed: February 12, 1999
    Date of Patent: March 20, 2001
    Assignee: Asahi Glass Company Ltd.
    Inventors: Mitsuo Sugimoto, Shigekuni Inoue, Takashi Iketani, Hiroshi Kurata, Yasuharu Hirabara