Patents by Inventor Masaya Hamamoto

Masaya Hamamoto 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: 11664551
    Abstract: A terminal-equipped case member having an external terminal for electrically connecting an external device, which is fixed to a case body for housing an electronic component or a case member constituting a case lid attached to the case body, includes a base material made of metal that forms the case member; the external terminal inserted into a through hole formed through the base material; a sealing material formed of a first resin material that seals a gap between the external terminal and the base material; and a terminal adhesion layer. The external terminal and the sealing member are bonded to each other through the terminal adhesion layer formed of a second resin material with a higher adhesion to the external terminal than that of the first resin material.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: May 30, 2023
    Assignee: OHKITA SEISAKUSYO
    Inventors: Masaya Hamamoto, Yoshifumi Ohkita, Takao Saitou, Kouji Ohkita
  • Publication number: 20220278398
    Abstract: A terminal-equipped case member having an external terminal for electrically connecting an external device, which is fixed to a case body for housing an electronic component or a case member constituting a case lid attached to the case body, includes a base material made of metal that forms the case member; the external terminal inserted into a through hole formed through the base material; a sealing material formed of a first resin material that seals a gap between the external terminal and the base material; and a terminal adhesion layer. The external terminal and the sealing member are bonded to each other through the terminal adhesion layer formed of a second resin material with a higher adhesion to the external terminal than that of the first resin material.
    Type: Application
    Filed: November 12, 2019
    Publication date: September 1, 2022
    Applicant: OHKITA SEISAKUSYO
    Inventors: Masaya HAMAMOTO, Yoshifumi OHKITA, Takao SAITOU, Kouji OHKITA
  • Patent number: 11261004
    Abstract: A metal case has a bottom part composed of a metal plate, and a side wall part composed of a metal plate that stands from an outer peripheral edge of the bottom part. A boundary part between the bottom part and the side wall part includes a welding portion formed by welding the both parts together. The welding portion is exposed on a surface of the metal case on a lower side in a standing direction of the side wall part. And, a lower end that is a lower end part of the bottom part in the standing direction of the side wall part is located on the lower side in the standing direction than the welding portion is.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: March 1, 2022
    Assignee: OHKITA SEISAKUSYO
    Inventors: Yoshifumi Ohkita, Masaya Hamamoto, Kouji Ohkita
  • Publication number: 20210237930
    Abstract: A metal case has a bottom part composed of a metal plate, and a side wall part composed of a metal plate that stands from an outer peripheral edge of the bottom part. A boundary part between the bottom part and the side wall part includes a welding portion formed by welding the both parts together. The welding portion is exposed on a surface of the metal case on a lower side in a standing direction of the side wall part. And, a lower end that is a lower end part of the bottom part in the standing direction of the side wall part is located on the lower side in the standing direction than the welding portion is.
    Type: Application
    Filed: January 9, 2020
    Publication date: August 5, 2021
    Applicant: OHKITA SEISAKUSYO
    Inventors: Yoshifumi OHKITA, Masaya HAMAMOTO, Kouji OHKITA
  • Patent number: 4943102
    Abstract: A windshield supporting structure which is to be employed in combination with an open cowl structure having an opening which opens upward includes a windshield supporting portion which is provided at the rear end portion of the opening. The windshield is bonded to the windshield supporting portion. The windshield supporting portion is positioned so that it supports the windshield at an intermediate portion thereof as viewed in the longitudinal direction of the vehicle body and so that the windshield extends forward and downward beyond the windshield supporting portion.
    Type: Grant
    Filed: April 25, 1989
    Date of Patent: July 24, 1990
    Assignee: Mazda Motor Corporation
    Inventors: Masaya Hamamoto, Keiichiro Shibata
  • Patent number: 4711485
    Abstract: An open top automobile body including a rigid roof panel extending between the front windshield section and a hoop member of a substantially inverted U-shape mounted at the opposite leg portions to the rear fenders for fore-and-aft swinging movements between an erected position and a retracted position. A foldable hood is provided between the hoop member and the rear body section to provide a rear windshield section. The roof panel is connected at the rear edge through a hinge mechanism with the hoop member so that the roof panel can be retracted into the rear body section together with the hoop member. A locking member prevents a relative rotation of two links of the hinge mechanism with respect to each other when the hoop member is in the erected position and the roof panel is placed between the front windshield and the hoop member.
    Type: Grant
    Filed: October 18, 1985
    Date of Patent: December 8, 1987
    Assignee: Mazda Motor Corporation
    Inventors: Jiro Maebayashi, Masaya Hamamoto
  • Patent number: 4708389
    Abstract: An open top automobile body having a hoop member which is mounted for swinging movement between an erected position and a retracted position. A rigid roof panel is removably mounted to extend between the front windshield and the hoop member. A foldable rear hood having a rigid transparent glass is provided to cover the rear body section. The rear hood is secured to the rear body section at a position below the upper edge of the rear body section. A peripheral hood tensioning link is provided to force the hood against the upper edge of the rear body section substantially over an entire outer periphery of the hood link.
    Type: Grant
    Filed: November 26, 1985
    Date of Patent: November 24, 1987
    Assignee: Mazda Motor Corporation
    Inventors: Jiro Maebayashi, Masaya Hamamoto
  • Patent number: 4650030
    Abstract: A motor vehicle having a rotary piston engine located at a front part of the vehicle with the engine output shaft extending in a longitudinal direction of the vehicle. A speed changing transmission and a center differential gear unit are arranged in this order from the engine so that the center differential gear unit drives the rear propeller shaft and the front differential gear unit. The front differential gear unit is located beneath the engine and driven through a transfer shaft by the center differential gear unit. The front differential gear unit is mounted on the oil pan of the engine which is attached to the lower part of the engine casing.
    Type: Grant
    Filed: August 16, 1985
    Date of Patent: March 17, 1987
    Assignee: Mazda Motor Corporation
    Inventors: Naomune Moriyama, Masaya Hamamoto