Patents by Inventor Tamakawa Yoshihito

Tamakawa Yoshihito 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 adapter holding structure, optical adapter, method for plugging and unplugging optical connector, and method for checking bending radius of optical cable
    Patent number: 11934016
    Abstract: An attachment tool has a plurality of insertion holes. An optical adapter is fitted into each of the insertion holes. At this time, a holding structure for the optical adapter and the attachment tool has a swaying mechanism that allows the optical adapter to sway against the attachment tool. When a force greater than a prescribed strength is applied to any one of the optical adapters, the swaying mechanism allows the optical adapter to sway in a direction in which the optical adapters are provided side by side. When the force is offloaded, the swaying mechanism can hold the optical adapter in a direction substantially vertical to the attachment tool.
    Type: Grant
    Filed: May 16, 2022
    Date of Patent: March 19, 2024
    Assignee: Shoden Seiwa Co., Ltd.
    Inventors: Tamakawa Yoshihito, Muthukumarana Wedikkara Arachchilage Chanaka Sudheera
  • OPTICAL ADAPTER HOLDING STRUCTURE, OPTICAL ADAPTER, METHOD FOR PLUGGING AND UNPLUGGING OPTICAL CONNECTOR, AND METHOD FOR CHECKING BENDING RADIUS OF OPTICAL CABLE
    Publication number: 20230367080
    Abstract: An attachment tool has a plurality of insertion holes. An optical adapter is fitted into each of the insertion holes. At this time, a holding structure for the optical adapter and the attachment tool has a swaying mechanism that allows the optical adapter to sway against the attachment tool. When a force greater than a prescribed strength is applied to any one of the optical adapters, the swaying mechanism allows the optical adapter to sway in a direction in which the optical adapters are provided side by side. When the force is offloaded, the swaying mechanism can hold the optical adapter in a direction substantially vertical to the attachment tool.
    Type: Application
    Filed: May 16, 2022
    Publication date: November 16, 2023
    Inventors: Tamakawa Yoshihito, Muthukumarana Wedikkara Arachchilage Chanaka Sudheera