Patents by Inventor Takashi Toku

Takashi Toku 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).

  • Pipe joint
    Patent number: 11181215
    Abstract: A pipe joint includes a hollow joint main body; a nut that is screwed into the joint main body; a seal member that is mounted to inside of the joint main body; and a retainer that is placed between the joint main body and the nut and comprises a pawl portion engaged with a trough of a metal flexible pipe in a coupled state and a retainer locking portion caught and locked inside of the joint main body in the coupled state.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: November 23, 2021
    Assignee: Hitachi Metals, Ltd.
    Inventors: Makoto Ibayashi, Yoshinori Yoshida, Takashi Toku, Takaaki Inotani
  • PIPE JOINT
    Publication number: 20180038533
    Abstract: A pipe joint includes a hollow joint main body; a nut that is screwed into the joint main body; a seal member that is mounted to inside of the joint main body; and a retainer that is placed between the joint main body and the nut and comprises a pawl portion engaged with a trough of a metal flexible pipe in a coupled state and a retainer locking portion caught and locked inside of the joint main body in the coupled state.
    Type: Application
    Filed: February 19, 2016
    Publication date: February 8, 2018
    Inventors: Makoto Ibayashi, Yoshinori Yoshida, Takashi Toku, Takaaki Inotani