Patents Assigned to Kogyo K. K. Yoshida
  • Patent number: 5312495
    Abstract: The present invention provides a process comprising the steps of forming a cast amorphous alloy from an alloy which exhibits glass transition behavior, heating the amorphous alloy to a temperature between Tg and Tx while subjecting the alloy to drawing to obtain a wire and cooling the wire to (Tg-50 K) or lower. By this process, it is possible to produce an amorphous alloy wire at a low cost and provide an ultrafine wire having high strength and high corrosion resistance as well as flexibility. The amorphous alloy wire can be utilized as a reinforcing wire for a composite material, a variety of reinforcing members, a woven fabric and the like.
    Type: Grant
    Filed: May 5, 1992
    Date of Patent: May 17, 1994
    Assignees: Tsuyoshi Masumoto, Akihisa Inoue, Unitika Ltd., Kogyo K.K. Yoshida
    Inventors: Tsuyoshi Masumoto, Akihisa Inoue, Hirokazu Yamamoto, Junichi Nagahora, Toshisuke Shibata
  • Patent number: 5306363
    Abstract: An aluminum-based alloy foil or thin aluminum-based alloy wire is produced from an amorphous material made by a quenching and solidifying process and having a composition represented by the general formula:Al.sub.a M.sub.b X.sub.cwherein M is one or more elements selected from a group consisting of V, Cr, Mn, Fe, Co, Ni, Cu, Zr, Ti, Mo, W, Ca, Li, Mg and Si; X is one or more elements selected from a group consisting of Y, Nb, Hf, Ta, La, Ce, Sm, Nd and Mm (misch metal); and a, b, and c are atomic percentages falling within the following range:50.ltoreq.a.ltoreq.950.5.ltoreq.b.ltoreq.35 and0.5.ltoreq.c.ltoreq.25Such foil or wire has a smooth surface and a very small and uniform foil thickness or wire diameter, contains at least 50% by volume of an amorphous phase, and has excellent strength and resistance to corrosion. The foil thickness and wire diameter are reduced in a rolling or drawing process at an elevated temperature over a short time period.
    Type: Grant
    Filed: August 20, 1990
    Date of Patent: April 26, 1994
    Assignees: Tsuyoshi Masumoto, Teikoku Piston Ring Co., Ltd., Honda Giken Kogyo Kabushiki Kaisha, Kogyo K.K. Yoshida
    Inventors: Tsuyoshi Masumoto, Akihisa Inoue, Hitoshi Yamaguchi, Noriaki Matsumoto, Kazuhiko Kita
  • Patent number: 4311111
    Abstract: A batch of parts to be painted is put into each of a plurality of barrels rotatably mounted on an indexing turntable in angularly spaced relation therearound. A spray gun, a hot-air blower, and a cool-air blower are disposed in angularly spaced positions around the turntable respectively for spraying paint onto, heating, and cooling the parts in the barrels while the turntable is held at temporary rest between its intermittent angular movements. The sequence of the steps is repeated until the paint coating on the parts has a desired thickness thereon. A parts separator may be provided for separating the parts from each other to avoid possible paint adhesion therebetween.
    Type: Grant
    Filed: December 20, 1979
    Date of Patent: January 19, 1982
    Assignee: Kogyo K. K. Yoshida
    Inventor: Toshimitsu Inaba