Patents by Inventor Hisao Yui

Hisao Yui 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: 8992101
    Abstract: An optical fiber reinforcing heating device has a base part, to which a first lid part for covering a sleeve accommodation groove for containing a fiber reinforcement sleeve covering a fusion-splicing part of optical fibers is attached so as to be openable and closable. A pair of fiber holders for holding and securing the optical fibers are disposed on both end sides of the first lid part. Each fiber holder has a second lid part which is attached to a fiber container so as to be openable and closable and presses the optical fiber against the fiber container. A switch lever which is movable longitudinally of the sleeve accommodation groove is disposed on the upper face of the second lid part built in with a pin adapted to move in conjunction with the switch lever. A joint hole adapted to engage the pin is formed within the first lid part.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: March 31, 2015
    Assignee: SEI Optifrontier Co., Ltd.
    Inventors: Masakazu Fukuda, Ryuichiro Sato, Hisao Yui, Hiroshi Takayanagi
  • Patent number: 8950955
    Abstract: An optical fiber reinforcing heating device 6A is equipped with a base part 12, while the base part 12 is provided with a sleeve accommodation groove that contains a fiber reinforcement sleeve and a heater having a U-shaped cross section, which heats the fiber reinforcement sleeve. A pair of fiber holders 19 that holds and clamps fusion-spliced optical fibers 3 are disposed on both end sides of the sleeve accommodation groove. A lid part 23 that covers the fiber accommodation groove 13 is attached openably and closably to the base part 12 through a rotary axis. A protector 24 for windbreak and heat insulation is joined to the lid part 23 through a rotary axis 25. The protector 24 is a member for preventing winds from entering the sleeve accommodation groove from a gap between a side wall of the base part 12 and the lid part 23.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: February 10, 2015
    Assignee: SEI Optifrontier Co., Ltd.
    Inventors: Masakazu Fukuda, Ryuichiro Sato, Hisao Yui, Hiroshi Takayanagi
  • Publication number: 20130315544
    Abstract: An optical fiber reinforcing heating device 6A is equipped with a base part 12, while the base part 12 is provided with a sleeve accommodation groove that contains a fiber reinforcement sleeve and a heater having a U-shaped cross section, which heats the fiber reinforcement sleeve. A pair of fiber holders 19 that holds and clamps fusion-spliced optical fibers 3 are disposed on both end sides of the sleeve accommodation groove. A lid part 23 that covers the fiber accommodation groove 13 is attached openably and closably to the base part 12 through a rotary axis. A protector 24 for windbreak and heat insulation is joined to the lid part 23 through a rotary axis 25. The protector 24 is a member for preventing winds from entering the sleeve accommodation groove from a gap between a side wall of the base part 12 and the lid part 23.
    Type: Application
    Filed: December 16, 2011
    Publication date: November 28, 2013
    Applicant: SEI OPTIFRONTIER CO., LTD.
    Inventors: Masakazu Fukuda, Ryuichiro Sato, Hisao Yui, Hiroshi Takayanagi
  • Publication number: 20130230286
    Abstract: An optical fiber reinforcing heating device has a base part, to which a first lid part for covering a sleeve accommodation groove for containing a fiber reinforcement sleeve covering a fusion-splicing part of optical fibers is attached so as to be openable and closable. A pair of fiber holders for holding and securing the optical fibers are disposed on both end sides of the first lid part. Each fiber holder has a second lid part which is attached to a fiber container so as to be openable and closable and presses the optical fiber against the fiber container. A switch lever which is movable longitudinally of the sleeve accommodation groove is disposed on the upper face of the second lid part built in with a pin adapted to move in conjunction with the switch lever. A joint hole adapted to engage the pin is formed within the first lid part.
    Type: Application
    Filed: December 19, 2011
    Publication date: September 5, 2013
    Applicant: SEI OPTIFRONTIER CO., LTD.
    Inventors: Masakazu Fukuda, Ryuichiro Sato, Hisao Yui, Hiroshi Takayanagi
  • Patent number: D652212
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: January 17, 2012
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Hiroshi Takayanagi, Hisao Yui
  • Patent number: D709286
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: July 22, 2014
    Assignee: SEI Optrifrontier Co., Ltd.
    Inventors: Hiroshi Takayanagi, Teruaki Nishida, Hisao Yui, Hiroyasu Toyooka