Patents by Inventor Tadayoshi Tukeda

Tadayoshi Tukeda 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).

  • Magnesium alloys excellent in fluidity and materials thereof
    Patent number: 6582533
    Abstract: Magnesium alloys containing, by mass percent, Al: 10.0 to 13.0%, Si: 0.3 to 1.5%, Mn: 0.1 to 1.0%, and, if desired, Zn: less than 0.8%, the rest being Mg and unavoidable impurities. Neither cracking by the casting is invited nor the mechanical property is spoiled, and the fluidity can be notably improved, and it is possible to make products small in thickness and light in weight.
    Type: Grant
    Filed: February 7, 2001
    Date of Patent: June 24, 2003
    Assignee: The Japan Steel Works, Ltd.
    Inventors: Tadayoshi Tukeda, Akihiro Maehara, Katsuhiko Nuibe, Ryouhei Uchida
  • Method of coating powder lubricant in metallic injection molding machine and die used of metallic injection molding
    Patent number: 6460596
    Abstract: A method of coating a powder lubricant in a metallic injection molding machine having a die composed of a stationary die (2) and a movable die (10), a sprue hole (4), runner groove (5), gate hole (6) and cavity (7) being formed on parting faces (P) of these dies (2, 10), a cold plug catcher (13) communicating with the sprue hole (4) when the movable die (10) is fastened to the stationary die (2) being formed in the movable die, the method of coating a powder lubricant in a metallic injection molding machine comprising the step of coating the powder lubricant from the cold plug catcher (13) toward the cavity (7) by decompressing the inside of the sprue hole, runner groove, gate hole and cavity from the cavity side.
    Type: Grant
    Filed: October 23, 2000
    Date of Patent: October 8, 2002
    Assignees: The Japan Steel Works, Ltd., Hanano Corporation
    Inventors: Takeshi Yamaguchi, Hidenori Takayasu, Ryuichi Sakamoto, Tadayoshi Tukeda, Toshiyuki Tange, Keiji Gohonjo
  • Magnesium alloys excellent in fluidity and materials thereof
    Publication number: 20010026768
    Abstract: Magnesium alloys containing, by mass percent, Al: 10.0 to 13.0%, Si: 0.3 to 1.5%, Mn: 0.1 to 1.0%, and, if desired, Zn: less than 0.8%, the rest being Mg and unavoidable impurities. Neither cracking by the casting is invited nor the mechanical property is spoiled, and the fluidity can be notably improved, and it is possible to make products small in thickness and light in weight.
    Type: Application
    Filed: February 7, 2001
    Publication date: October 4, 2001
    Inventors: Tadayoshi Tukeda, Akihiro Maehara, Katsuhiko Nuibe, Ryouhei Uchida