Patents by Inventor Masaaki Shigesada

Masaaki Shigesada 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: 6824279
    Abstract: A seal structure of a door mirror mounting portion according to the present invention is constituted by a mirror base portion mounted to a door panel, a seal member held between the mirror base portion and the door panel, and a weather strip provided in the door panel and sealing between the door panel and a front pillar. A surface of the door panel to which the mirror base is mounted is offset to an inner side of the room from a general surface other than the door mirror mounting portion, and the seal member is extended to a side of the front pillar so as to be brought into contact with the weather strip and close between the mirror base portion and the front pillar. The mirror base does not protrude to a side portion of the vehicle, thereby improving an appearance, and an air stream in the portion becomes smooth at a time of traveling the vehicle, so that it is hard to generate the strong wind noise and the peeling in the end portion of the seal portion.
    Type: Grant
    Filed: December 3, 2001
    Date of Patent: November 30, 2004
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Masaaki Shigesada, Junichi Wakamatsu
  • Publication number: 20020083648
    Abstract: A seal structure of a door mirror mounting portion according to the present invention is constituted by a mirror base portion mounted to a door panel, a seal member held between the mirror base portion and the door panel, and a weather strip provided in the door panel and sealing between the door panel and a front pillar. A surface of the door panel to which the mirror base is mounted is offset to an inner side of the room from a general surface other than the door mirror mounting portion, and the seal member is extended to a side of the front pillar so as to be brought into contact with the weather strip and close between the mirror base portion and the front pillar. The mirror base does not protrude to a side portion of the vehicle, thereby improving an appearance, and an air stream in the portion becomes smooth at a time of traveling the vehicle, so that it is hard to generate the strong wind noise and the peeling in the end portion of the seal portion.
    Type: Application
    Filed: December 3, 2001
    Publication date: July 4, 2002
    Applicant: Nissan Motor Co., Ltd.
    Inventors: Masaaki Shigesada, Junichi Wakamatsu
  • Patent number: 4966832
    Abstract: To mold artificial leather provided with real leather like feeling or touch on the surface thereof, a leather wrinkle pattern is formed on the artificial leather in such a way that the ridge portions are glazed and the furrow portions are matted. For the purpose of molding the above-mentioned artificial leather, the inner surface of the metallic mold is contrary formed in such a way that the ridge portions are matted but the furrow portions are glazed.
    Type: Grant
    Filed: May 11, 1989
    Date of Patent: October 30, 1990
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Masaaki Shigesada
  • Patent number: 4648648
    Abstract: A tonneau board for serving as a rear parcel shelf of a hatchback type vehicle is removably pivoted at the front end on right and left rear parcel side trims. The rear end of the tonneau board is formed with a projection projecting downwardly. When the board is placed in its fixed position, the rear end projection of the board abuts against a rearwardly facing surface of a stopper portion formed in each trim so as to facilitate positioning of the board. When the board is in the fixed position and simultaneously the back door is closed, the rear end projection is clamped between the stopper portion of each trim and the back door so as to fix the rear end of the board firmly.
    Type: Grant
    Filed: December 16, 1985
    Date of Patent: March 10, 1987
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Masaaki Shigesada, Norio Kazama