Patents by Inventor Hiroyuki Tsuyuki

Hiroyuki Tsuyuki 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: 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