Patents by Inventor Masaaki Ishio

Masaaki Ishio 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: 6312834
    Abstract: The present invention, which is aimed at providing a method for manufacturing a clad material that can be used for the anode cases and cathode cases of button-type microbatteries and other miniature electronic devices requiring the use of comparatively thin, drawable sheets, allows the difference between r values, or Lankford values (which characterize the plastic anisotropy between the rolling/bonding direction of a clad material and a direction at a prescribed angle to the rolling/bonding direction) to be reduced by preforming cold rolling at a reduction of 30% or lower in addition to performing a conventional method for manufacturing a clad material, making it possible to substantially enhance the mechanical strength of the clad material and to mass-produce clad materials that have low reduction anisotropy.
    Type: Grant
    Filed: February 2, 2000
    Date of Patent: November 6, 2001
    Assignee: Sumitomo Special Metals Co., Ltd.
    Inventors: Masaaki Ishio, Yoshiki Takai
  • Patent number: 5573860
    Abstract: It is an object of the present invention to provide a bimetal having a same or wider proportional temperature range than a bimetal using a 42 wt % Ni--Fe alloy as a low thermal expansion alloy, and a higher bending characteristic of a large bending coefficient than a bimetal using a 36 wt % Ni--Fe alloy. The bimetal is formed by bonding a Ni--Co--Fe group low thermal expansion alloy, wherein a total amount of Ni and Co restricted to a very narrow containing range is within a specific composition range, a thermal expansion coefficient at 30 to 100.degree.C. is made similar to that of a 31 wt % Ni--5 wt % Co--Fe alloy of a nominal composition, a thermal expansion is very small and 2.times.10.sup.-6 /.degree.C. or less in the temperature range of 30.degree.to 300.degree. C., and further, a transition point is 250.degree. C. or higher and a transformation temperature is 50.degree. C.
    Type: Grant
    Filed: May 5, 1994
    Date of Patent: November 12, 1996
    Assignee: Sumitomo Special Metals Co., Ltd.
    Inventors: Kenji Hirano, Masaaki Tomita, Masaaki Ishio
  • Patent number: 5028495
    Abstract: A composite foil brazing material for joining ceramics to each other or to metal, which is made up of a core of Ti and outer layers of Ni or Ni alloy containing less than 80% of Cu, with the core and the composite foil having the respective sectional areas whose ratio is 5/10 to 9/10.
    Type: Grant
    Filed: June 20, 1990
    Date of Patent: July 2, 1991
    Assignee: Sumitomo Special Metal Co., Ltd.
    Inventors: Kenji Hirano, Minoru Suenaga, Masaaki Ishio