Patents by Inventor Natsuki TSUKIYAMA

Natsuki TSUKIYAMA 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).

  • Structure of lift gate for vehicle
    Patent number: 8690220
    Abstract: An inner panel of a lift gate includes an outer-frame forming portion comprising a pair of side edge frame portions including a pair of pillar portions and a lower end frame portion integrally formed at the side frame portions, an inner-frame forming portion formed at a lower edge portion of a window opening to connect to the outer-frame forming portion, and a panel portion covering over a portion enclosed by the outer-frame forming portion and the inner-frame forming portion. The panel portion comprises an outside panel portion provided to contact the outer panel and an inside panel portion integrally formed at the outside panel portion to connect to the outside panel portion and project toward a vehicle-compartment side beyond the outside panel portion and connects to the outer-frame forming portion and the inner-frame forming portion of said inner panel.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: April 8, 2014
    Assignees: Mazda Motor Corporation, DaikyoNishikawa Corporation
    Inventors: Natsuki Tsukiyama, Koichi Matsumoto, Issei Harima, Naoyuki Ikemizu, Tsuyoshi Igura, Junichiro Yamashita
  • STRUCTURE OF LIFT GATE FOR VEHICLE
    Publication number: 20120248814
    Abstract: An inner panel of a lift gate includes an outer-frame forming portion comprising a pair of side edge frame portions including a pair of pillar portions and a lower end frame portion integrally formed at the side frame portions, an inner-frame forming portion formed at a lower edge portion of a window opening to connect to the outer-frame forming portion, and a panel portion covering over a portion enclosed by the outer-frame forming portion and the inner-frame forming portion. The panel portion comprises an outside panel portion provided to contact the outer panel and an inside panel portion integrally formed at the outside panel portion to connect to the outside panel portion and project toward a vehicle-compartment side beyond the outside panel portion and connects to the outer-frame forming portion and the inner-frame forming portion of said inner panel.
    Type: Application
    Filed: February 29, 2012
    Publication date: October 4, 2012
    Applicants: DAIKYONISHIKAWA CORPORATION, MAZDA MOTOR CORPORATION
    Inventors: Natsuki TSUKIYAMA, Koichi MATSUMOTO, Issei HARIMA, Naoyuki IKEMIZU, Tsuyoshi IGURA, Junichiro YAMASHITA