Patents by Inventor Akinori Okura

Akinori Okura 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).

  • Method for manufacturing ink tank, ink tank, ink jet cartridge, and ink jet recording apparatus
    Patent number: 6435675
    Abstract: A method for manufacturing an ink tank comprises the steps of supplying a container having an opening, inserting a porous member into the opening of the container in a compressed state, and holding the porous member in the compressed state by fixing a plate member to the opening of the container. The porous member is compressed more in a direction substantially orthogonal to the direction of the insertion into the opening. When compressing the porous member, the porous member is clamped in the same direction as the inserting direction so as not to allow the porous member to be deformed in the inserting direction, and in such state, the porous member is compressed in directions substantially orthogonal to the inserting direction.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: August 20, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akinori Okura, Tadashi Makiguchi, Tsutomu Abe, Toshimitsu Nakamura
  • Method for manufacturing ink tank, ink tank, ink jet cartridge, and ink jet recording apparatus
    Publication number: 20010015743
    Abstract: A method for manufacturing an ink tank comprises the steps of supplying an container having an opening, inserting a porous member into the opening of the container in a state of being compressed, and holding the porous member in the compressed state by fixing a plate member to the opening of the container, and the porous member being in a compressed shape more in the direction substantially orthogonal to the direction of the insertion when the porous member is compressed in the inserting direction into the opening.
    Type: Application
    Filed: February 21, 2001
    Publication date: August 23, 2001
    Inventors: Akinori Okura, Tadashi Makiguchi, Tsutomu Abe, Toshimitsu Nakamura