Patents by Inventor Masami Kitano

Masami Kitano 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).

  • Lens function-including optical fiber and method of producing the same
    Patent number: 6847770
    Abstract: A lens function-including optical lens according to the present invention is constituted by: at least one step-index optical fiber; and at least one gradient index optical fiber having an outer diameter equal to that of the step-index optical fiber and having a periodic length exhibiting a lens function, the gradient index optical fiber being joined or attached to an end surface of the step-index optical fiber. The present invention is especially effective in a single mode optical fiber which is typical of the step-index optical fiber. The gradient index optical fiber can be produced by an ion exchange method.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: January 25, 2005
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventors: Shigeo Kittaka, Tadashi Koyama, Masami Kitano
  • Lens function-including optical fiber and method of producing the same
    Publication number: 20020090173
    Abstract: A lens function-including optical lens according to the present invention is constituted by: at least one step-index optical fiber; and at least one gradient index optical fiber having an outer diameter equal to that of the step-index optical fiber and having a periodic length exhibiting a lens function, the gradient index optical fiber being joined or attached to an end surface of the step-index optical fiber. The present invention is especially effective in a single mode optical fiber which is typical of the step-index optical fiber. The gradient index optical fiber can be produced by an ion exchange method.
    Type: Application
    Filed: December 21, 2001
    Publication date: July 11, 2002
    Inventors: Shigeo Kittaka, Takashi Koyama, Masami Kitano