Patents by Inventor Nobuo Iwakuni

Nobuo Iwakuni 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).

  • Patent number: 10996243
    Abstract: The present invention is intended to provide a vertical probe and a jig which has sufficient flexibility for contact reaction force from the electrical contact to be inspected, easy insertion and assembly of the probe even with narrow pitch, and enables cost reduction and delivery time reduction, wherein means for driving and positioning relative positions of upper and lower hole plates is provided, the straight pins as materials of vertical probes are inserted into the upper and lower hole plates, plastic deformation is applied to the straight pin by driving and positioning the relative position of the upper and lower hole plates, a symmetrical arched shape is provided, and a bending point is formed in the vicinity of the lower side of the upper hole plate and in the vicinity of the upper side of the lower hole plate.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: May 4, 2021
    Assignee: PROBE INNOVATION, INC.
    Inventors: Akiko Iwana, Tadashi Rokkaku, Nobuo Iwakuni
  • Publication number: 20200182908
    Abstract: The present invention is intended to provide a vertical probe and a jig which has sufficient flexibility for contact reaction force from the electrical contact to be inspected, easy insertion and assembly of the probe even with narrow pitch, and enables cost reduction and delivery time reduction, wherein means for driving and positioning relative positions of upper and lower hole plates is provided, the straight pins as materials of vertical probes are inserted into the upper and lower hole plates, plastic deformation is applied to the straight pin by driving and positioning the relative position of the upper and lower hole plates, a symmetrical arched shape is provided, and a bending point is formed in the vicinity of the lower side of the upper hole plate and in the vicinity of the upper side of the lower hole plate.
    Type: Application
    Filed: July 5, 2019
    Publication date: June 11, 2020
    Applicant: Probe Innovation, Inc.
    Inventors: Akiko IWANA, Tadashi Rokkaku, Nobuo IWAKUNI
  • Patent number: 5285841
    Abstract: A metal mold cooling device capable of employing a cooling pipe having a small diameter insertable into a cooling hole having a small diameter, and capable of performing fine supply control of a cooling liquid to the metal mold for fine temperature control thereto. A cooling pipe is connected to a compressed air source through a pipe and a first change-over valve. Further, the pipe is connected to a branch pipe to which a second change-over valve is connected. A hermetic cooling liquid tank connected to a water source is connected to the second change-over valve. A third change-over valve is provided between the compressed air source and the cooling liquid tank so as to apply pneumatic pressure onto a surface of the cooling liquid in the cooling liquid tank. Since the cooling liquid tank is provided in addition to the water source, pneumatic pressure from the compressed air source can be utilized. The cooling liquid in the cooling liquid tank is compressed and is supplied to the cooling pipe.
    Type: Grant
    Filed: February 1, 1993
    Date of Patent: February 15, 1994
    Assignee: Ryobi Ltd.
    Inventors: Noriyoshi Yamauchi, Hitoshi Ishida, Nobuo Iwakuni, Akio Kobashi