Patents by Inventor Kazuo Ikawa

Kazuo Ikawa 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).

  • Cover member for a safety air-cushion device and a method of producing the same
    Patent number: 4120516
    Abstract: A cover member for a safety air-cushion device is made up of a bag-shaped outer laminate of high density polyurethane foam, and a bag-shaped inner laminate of low density polyurethane foam which is integral with the outer laminate, the inner laminate being made by pouring the fluidized material into a mold after solidification of the other fluidized material having been poured into the mold for the formation of the outer laminate.
    Type: Grant
    Filed: December 2, 1976
    Date of Patent: October 17, 1978
    Assignee: Nissan Motor Company, Limited
    Inventors: Yukio Takamatsu, Takashi Wakabayashi, Hideyo Noda, Kiyoshi Ichikawa, Tsuneteru Kamegai, Kazuo Ikawa
  • Support assembly of a collapsible steering column
    Patent number: 4102217
    Abstract: A flat clamp plate is fastened to an instrument panel of a vehicle body. A clamp attachment with a top panel is fixed to a telescopically movable part of the steering column and is in slidable engagement with the clamp plate through a hook connection at the front and rear ends thereof. The clamp plate and the clamp attachment are fastened together by means of shear pins which are breakable under a predetermined shearing stress.
    Type: Grant
    Filed: January 11, 1977
    Date of Patent: July 25, 1978
    Assignees: Nissan Motor Company, Ltd., Fuji Kiko Company, Ltd.
    Inventors: Yoshimi Yamamoto, Kazuo Ikawa, Naoki Ogawa
  • Air-cushion device with a cover and a cover cutter
    Patent number: 4097064
    Abstract: A cover for an air-cushion is cut open by a cutter with the assistance of the expanding air-cushion to allow the air-cushion to quickly expand to its designed size in case of vehicle collision.
    Type: Grant
    Filed: September 28, 1976
    Date of Patent: June 27, 1978
    Assignee: Nissan Motor Company, Limited
    Inventors: Kazuo Ikawa, Hideoki Matsuoka
  • Knee protector
    Patent number: 4065157
    Abstract: A panel extends between and is anchored to the side walls of a vehicle occupant space to form a surface substantially juxtaposed to the knees of seated occupants. Four box-profiled crushable elements are laterally arranged and mounted on and along the elongate panel.
    Type: Grant
    Filed: June 1, 1976
    Date of Patent: December 27, 1977
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Fumiyuki Abe, Kazuo Ikawa, Mituo Ehama, Naoki Ogawa
  • Electric contacting device
    Patent number: 4055375
    Abstract: A first annular member provided with at least two different shaped conductive spring arms is fixedly and coaxially connected to a rotatable member for rotatable movement therewith the two spring arms having different characteristic frequencies respectively. A second annular member provided with an annular conductive rail is connected to a relatively stationary member so as to be coaxially spaced apart from the first annular member. The free ends of the conductive spring arms are urged into sliding contact with the annular conductive rail.
    Type: Grant
    Filed: May 27, 1976
    Date of Patent: October 25, 1977
    Assignee: Nissan Motor Company, Limited
    Inventors: Naoki Ogawa, Kazuo Ikawa
  • Electrical contacting device
    Patent number: 4006954
    Abstract: Roller bearings ensure electrical contact and smooth rotation between a rotatable member and a stationary member even during severe vibration.
    Type: Grant
    Filed: September 17, 1975
    Date of Patent: February 8, 1977
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Kazuo Ikawa, Naoki Ogawa
  • Electrical contacting device
    Patent number: 3997224
    Abstract: A stationary outer annular holder is concentrically positioned around and radially spaced apart from a rotatable annular conductive plate member. Curved conductive spring bands are supported on the holder so as to be urged into sliding contact with the annular conductive plate member. Electrical contact and smooth rotation between the holder and the annular conductive plate member are thus ensured even during severe vibration.
    Type: Grant
    Filed: December 16, 1975
    Date of Patent: December 14, 1976
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Naoki Ogawa, Kazuo Ikawa
  • Energy absorbing panel structure
    Patent number: 3930665
    Abstract: Two uniform sheets are separated from each other by a corrugated member. The alternating ridges of the corrugated member are spot-welded to the inner surfaces of the two sheets. One of the sheets forms an impact receiving surface and has rows of slots, each row being located between the ridges. Upon impact, the slotted sheet is fractured and the adjoining spot-welded sections of the corrugated member are progressively deformed to distribute the impact force over a large area.
    Type: Grant
    Filed: July 29, 1974
    Date of Patent: January 6, 1976
    Assignee: Nissan Motor Company Limited
    Inventor: Kazuo Ikawa