Patents by Inventor Akihisa Okada

Akihisa Okada 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: 9340107
    Abstract: A support structure for a fuel lid attached by a hinge to a vehicle body is provided with an annular rubber seal, which is provided on the vehicle body to surround an oil filler port in the vehicle body. The rubber seal has a top surface and an inner circumferential surface. The support structure includes a contact plate provided on a back surface of the fuel lid. The contact plate contacts the rubber seal when the fuel lid is in the closed state. The contact plate has an upper surface contact portion for contacting the upper surface of the rubber seal, and an inner-surface contact portion for contacting the inner circumferential surface of the rubber seal.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: May 17, 2016
    Assignees: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kenji Chiba, Akihisa Okada, Nobukazu Kato, Yasuhiro Hatta, Hirofumi Arima
  • Patent number: 9186983
    Abstract: In a joining structure of a lid box according to an embodiment of the invention, a joining area where a joining surface of a joining portion of a side outer panel faces a joining surface of a joining portion of the lid box includes a first area where the joining surfaces come into contact with each other and are supposed to be subjected to spot-welding and a second area where the joining surfaces are separated from each other by a predetermined gap and are supposed to be subjected to laser-welding, and the spot-welding is performed on the first area or the laser-welding is performed on the second area. For that reason, since the joining states respectively suitable for the spot-welding and the laser-welding are realized, sufficient welding quality is ensured in both the spot-welding and the laser-welding.
    Type: Grant
    Filed: January 7, 2013
    Date of Patent: November 17, 2015
    Assignees: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akihisa Okada, Nobukazu Kato, Yasuhiro Hatta, Hirofumi Arima, Kenji Chiba
  • Publication number: 20150217638
    Abstract: A support structure for a fuel lid attached by a hinge to a vehicle body is provided with an annular rubber seal, which is provided on the vehicle body to surround an oil filler port in the vehicle body. The rubber seal has a top surface and an inner circumferential surface. The support structure includes a contact plate provided on a back surface of the fuel lid. The contact plate contacts the rubber seal when the fuel lid is in the closed state. The contact plate has an upper surface contact portion for contacting the upper surface of the rubber seal, and an inner-surface contact portion for contacting the inner circumferential surface of the rubber seal.
    Type: Application
    Filed: August 21, 2013
    Publication date: August 6, 2015
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Kenji Chiba, Akihisa Okada, Nobukazu Kato, Yasuhiro Hatta, Hirofumi Arima
  • Publication number: 20150015020
    Abstract: In a joining structure of a lid box according to an embodiment of the invention, a joining area where a joining surface of a joining portion of a side outer panel faces a joining surface of a joining portion of the lid box includes a first area where the joining surfaces come into contact with each other and are supposed to be subjected to spot-welding and a second area where the joining surfaces are separated from each other by a predetermined gap and are supposed to be subjected to laser-welding, and the spot-welding is performed on the first area or the laser-welding is performed on the second area. For that reason, since the joining states respectively suitable for the spot-welding and the laser-welding are realized, sufficient welding quality is ensured in both the spot-welding and the laser-welding.
    Type: Application
    Filed: January 7, 2013
    Publication date: January 15, 2015
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Akihisa Okada, Nobukazu Kato, Yasuhiro Hatta, Hirofumi Arima, Kenji Chiba
  • Patent number: 5017102
    Abstract: A magnet pump has a magnet coupling for magnetically coupling an inner ring yoke and an outer ring yoke so as to magnetically transmit a torque from driving part to driven part of the pump to rotate the driven part. The magnet pump comprises magnetized magnet pieces bonded to the outer peripheral surface of the inner ring yoke and magnetized magnet pieces bonded to the inner peripheral surface of the outer ring yoke; non-magnetic cylindrical covers covering the surface of the inner ring yoke carrying the magnet pieces and the surface of the outer ring yoke carrying the magnet pieces, respectively; and mold resin parts filling the gap between the surface of the inner ring yoke and the associated non-magnetic cylindrical cover and the gap between the surface of the outer yoke ring and the associated non-magnetic cylindrical cover.
    Type: Grant
    Filed: November 28, 1989
    Date of Patent: May 21, 1991
    Assignee: Hitachi, Ltd.
    Inventors: Takashi Shimaguchi, Toshihiro Yamada, Tatsuo Natori, Akihisa Okada, Hiroshi Misumi
  • Patent number: 4909705
    Abstract: A multi-stage diffuser-type centrifugal pump suitable for feeding under pressure a low-temperature fluid such as a liquefied gas. Stages are respectively provided between adjacent ones of impellers provided in a plurality of stages. A cylindrical stage casing is provided in such a manner as to surround the stages, a sealant is provided between each stage and the stage casing to form a channel flow on an inner peripheral surface of the stage casing for flow from an upstream-side impeller to a downstream-side impeller. In addition, the sealant has a coefficient of thermal expansion which differs from the coefficient of thermal expansion of the stage and the stage casing.
    Type: Grant
    Filed: December 13, 1988
    Date of Patent: March 20, 1990
    Assignee: Hitachi, Ltd.
    Inventors: Hiroyuki Katsura, Akihisa Okada
  • Patent number: D847054
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: April 30, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yosuke Yamada, Akihisa Okada
  • Patent number: D908075
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: January 19, 2021
    Inventors: Aaron Park, Akihisa Okada, Makoto Kato, Takeshi Okabe, Isamu Masakawa