Patents by Inventor Shoji Okajima

Shoji Okajima 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: 6742806
    Abstract: An airbag comprises an airbag body, and a wrapping member made tearable for preventing the airbag body from returning to its unfolded state. The airbag body is folded and housed on the peripheral edge of an opening on the inner side of a car body, and is folded up into a rod shape so that it may be inflated when an inflating gas flows thereinto so as to cover the opening. The wrapping member is made flexible and long and is wrapped on the outer periphery of the folded airbag body substantially all along the length of the same, so that it may extend obliquely to the axial direction of the airbag body folded up into the rod-like shape. Moreover, the airbag is restrained in its proper folded state substantially all along its length by a simple wrapping operation.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: June 1, 2004
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Hiroshi Ogawa, Hiroshi Yasuda, Shoji Okajima
  • Patent number: 6722693
    Abstract: An airbag according to the present invention comprises an airbag body and a plurality of tearable wrapping yarns. The wrapping yarns are wound around the outer circumference of the wrapping area of the airbag body as folded into a generally rod-like shape, along the axial direction of the airbag body and to obliquely intersect the axial direction. In the wrapping area, at least two of the wrapping yarns are wound from the opposite directions to each other. The distance between the adjacent wrapping yarns along the axial direction of the airbag body is within the range of 20 to 60 mm in the wrapping area. The yarn strength of each wrapping yarn is within the range of 7.4 to 65N. In the airbag of the present invention, the airbag body in the wrapping area is kept in a compact shape by a simple wrapping work, while securing the smooth expansion and inflation.
    Type: Grant
    Filed: March 5, 2003
    Date of Patent: April 20, 2004
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Takanobu Ikeda, Takashi Yamamoto, Katsuhiko Kato, Shoji Okajima, Mitsuru Sugaya
  • Publication number: 20030205889
    Abstract: An airbag according to the present invention comprises an airbag body and a plurality of tearable wrapping yarns. The wrapping yarns are wound around the outer circumference of the wrapping area of the airbag body as folded into a generally rod-like shape, along the axial direction of the airbag body and to obliquely intersect the axial direction. In the wrapping area, at least two of the wrapping yarns are wound from the opposite directions to each other. The distance between the adjacent wrapping yarns along the axial direction of the airbag body is within the range of 20 to 60 mm in the wrapping area. The yarn strength of each wrapping yarn is within the range of 7.4 to 65N. In the airbag of the present invention, the airbag body in the wrapping area is kept in a compact shape by a simple wrapping work, while securing the smooth expansion and inflation.
    Type: Application
    Filed: March 5, 2003
    Publication date: November 6, 2003
    Inventors: Takanobu Ikeda, Takashi Yamamoto, Katsuhiko Kato, Shoji Okajima, Mitsuru Sugaya
  • Publication number: 20020089154
    Abstract: An airbag comprises an airbag body, and a wrapping member made tearable for preventing the airbag body from returning to its unfolded state. The airbag body is folded and housed on the peripheral edge of an opening on the inner side of a car body, and is folded up into a rod shape so that it may be inflated when an inflating gas flows thereinto so as to cover the opening. The wrapping member is made flexible and long and is wrapped on the outer periphery of the folded airbag body substantially all along the length of the same, so that it may extend obliquely to the axial direction of the airbag body folded up into the rod-like shape. Moreover, the airbag is restrained in its proper folded state substantially all along its length by a simple wrapping operation.
    Type: Application
    Filed: December 14, 2001
    Publication date: July 11, 2002
    Applicant: TOYODA GOSEI CO., LTD.
    Inventors: Hiroshi Ogawa, Hiroshi Yasuda, Shoji Okajima