Patents Assigned to Mitsui Seiki Kogyo Kabushiki Kaisha
  • Patent number: 5948342
    Abstract: A rapid prototyping method utilizing a powder sintering process and an apparatus for fabricating a product, utilizing the method. The rapid prototyping method includes steps of slicing an image of a product to be fabricated into a number of layers, preparing a mold sheet for each of the slices of the product with a cavity adapted to the profile of the corresponding slice, laying the mold sheet in place on a one-on-the-other basis, feeding the cavity of the mold sheet with a powdery material, pressurizing the material, repeating the preceding steps for each slide to form a multilayer structure for a complete product, and sintering the multilayer structure to produce a finished product. The rapid prototyping method according to the invention provides major advantages over comparable known methods in terms of cost, processing time, and profiling accuracy.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: September 7, 1999
    Assignees: Hiromu Nakazawa, Mitsui Seiki Kogyo Kabushiki Kaisha
    Inventors: Hiromu Nakazawa, Mitsuo Ishikawa, Koichi Nishimura, Hiroyuki Tsuyuki