Patents by Inventor Tadao Nasu

Tadao Nasu 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: 7448529
    Abstract: Objectives of the present invention are to reduce the size and weight of side-member and roofjigs, and to simplify analysis of problems related to ease-of-assembly of vehicle body roofs and side-members. In a first step, using clamping jigs 11-1 through 11-4, a left and right pair of side-members 4 are positioned with respect to an underbody 3 (that was positioned at a prescribed position in a vehicle body assembly line 2), and welded in place. Continuing in a second step, after the clamping jigs 11-1 through 11-4 have been released, a roof 31 is placed on upper welding edges of the left and right side-members 4 while being positioned using suspension jigs 35 and 36, after which it is welded in place.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: November 11, 2008
    Assignee: Daihatsu Motor Co., Ltd.
    Inventors: Jyunji Motomi, Isao Kita, Tadao Nasu, Takuji Izutani, Kaname Akagi, Kazuto Ikeda, Hiromichi Arayama
  • Publication number: 20050017057
    Abstract: Objectives of the present invention are to reduce the size and weight of side-member and roofjigs, and to simplify analysis of problems related to ease-of-assembly of vehicle body roofs and side-members. In a first step, using clamping jigs 11-1 through 11-4, a left and right pair of side-members 4 are positioned with respect to an underbody 3 (that was positioned at a prescribed position in a vehicle body assembly line 2), and welded in place. Continuing in a second step, after the clamping jigs 11-1 through 11-4 have been released, a roof 31 is placed on upper welding edges of the left and right side-members 4 while being positioned using suspension jigs 35 and 36, after which it is welded in place.
    Type: Application
    Filed: October 1, 2002
    Publication date: January 27, 2005
    Inventors: Jyunji Motomi, Isao Kita, Tadao Nasu, Takuji Izutani, Kaname Akagi, Kazuto Ikeda, Hiromichi Arayama