Patents by Inventor Masayoshi Kagawa

Masayoshi Kagawa 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).

  • OPTICAL CONNECTOR
    Publication number: 20200200980
    Abstract: An optical connector includes a connector housing that holds a ferrule such that the ferrule is allowed to move backward along a connecting direction, and the optical fiber in the connector housing has at least one loop element each having a tangential line along the connecting direction and a pair of tangential line portions connected to the at least one loop element and is held in such a manner as not to prevent a radius of curvature of the at least one loop element from becoming larger as the ferrule moves backward along the connecting direction.
    Type: Application
    Filed: March 2, 2020
    Publication date: June 25, 2020
    Inventors: Yuichi KOREEDA, Masaki ISHIGURO, Masayoshi KAGAWA
  • Method for tuning optical characteristic of an optical module
    Patent number: 6836596
    Abstract: This invention relates to a method for tuning optical characteristic of an optical module. The tuning method in optical characteristic of an optical module consisting of an optical fiber, a lens, an optical filter and a filter holder, comprising: a step of tuning an optical characteristic to turn the optical filter or the said optical fiber around the axis offset from the center of the said optical filter.
    Type: Grant
    Filed: March 26, 2003
    Date of Patent: December 28, 2004
    Assignee: The Furukawa Electric Co., Ltd.
    Inventors: Masayoshi Kagawa, Hiroshi Matsuura, Hajime Kazami, Kazuaki Sato
  • Method for tuning optical characteristic of an optical module
    Publication number: 20030231832
    Abstract: This invention relates to a method for tuning optical characteristic of an optical module. The tuning method in optical characteristic of an optical module consisting of an optical fiber, a lens, an optical filter and a filter holder, comprising: a step of tuning an optical characteristic to turn the optical filter or the said optical fiber around the axis offset from the center of the said optical filter.
    Type: Application
    Filed: March 26, 2003
    Publication date: December 18, 2003
    Inventors: Masayoshi Kagawa, Hiroshi Matsuura, Hajime Kazami, Kazuaki Sato