Patents by Inventor Tadahiro Osanaga

Tadahiro Osanaga 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: 5432224
    Abstract: Moldable compositions comprising metallic powder or combination thereof with ceramic powder, mixed an organic binder are disclosed, at least a part of which comprises a synthetic resin component (A) having a heat deformation temperature of 130.degree. C. or higher. The component A may be used in combination with another component (B) having a melting point of 30.degree. C.-100.degree. C., with or without another thermoplastic component (C), having a heat deformation temperature of 13.degree. C. or less. Moldable compositions, comprising metallic and/or ceramic powder mixed with an organic binder comprising a secondary or tertiary amine (D), or combination thereof with a thermoplastic resin (E), are also disclosed.
    Type: Grant
    Filed: July 22, 1991
    Date of Patent: July 11, 1995
    Assignee: Sanyo Chemical Industries, Ltd.
    Inventors: Jiroh Ryuhgoh, Kohshi Kawamoto, Tadahiro Osanaga, Yoshiroh Nakata
  • Patent number: 5280086
    Abstract: Moldable compositions comprising metallic powder and/or ceramic powder, mixed an organic binder are disclosed, which comprises an ether polyamine of the formula (1) and/or a primary amine of the formula (2) : ##STR1## wherein A.sup.1 and A.sup.2 are alkylene groups or aryl-substituted alkylene groups; X.sup.1 is a residue of an active hydrogen atom-containing compound having at least 2 active hydrogen atoms; n is at least 1; m is 2-8; and X.sup.2 is an amino group represented by ##STR2## wherein R.sup.1 and R.sup.2 are hydrogen atom, alkyl groups or groups of the formula : --(A.sup.3 --O).sub.k --R.sup.3, wherein A.sup.3 is an alkylene group, R.sup.3 is hydrogen atom or an alkyl group and k is at least 1; R is hydrogen atom or an alkyl groups containing 1-30 carbon atoms, A is an alkylene group containing 1-4 carbon atoms, and r is an integer of at least 1.
    Type: Grant
    Filed: February 6, 1991
    Date of Patent: January 18, 1994
    Assignee: Sanyo Chemical Industries, Ltd.
    Inventors: Kohshi Kawamoto, Tadahiro Osanaga