Patents by Inventor Shoichiro Takezawa

Shoichiro Takezawa 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).

  • Resin composition for powder coating
    Patent number: 4499239
    Abstract: A resin composition for powder coating, said composition consisting essentially of(A) 60 to 97% by weight of a polyester resin having an acid value of 15 to 200 mgKOH/g and a softening point of 80.degree. to 150.degree. C., and(B) 3 to 40% by weight of a glycidyl-containing acrylic polymer unmodified or modified with a monobasic acid.
    Type: Grant
    Filed: March 26, 1981
    Date of Patent: February 12, 1985
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Yoichi Murakami, Akio Shoji, Shoichiro Takezawa, Noboru Ishikawa, Toshiaki Morita
  • Powder coating resin composition
    Patent number: 4321335
    Abstract: A powder coating resin composition comprising (A) a phosphorus-containing vinyl polymer containing a curable functional group and having a softening point, determined by the ring and ball method, of 70.degree. to 150.degree. C. and a number average molecular weight of 1500 to 30000, and (B) a curing agent.
    Type: Grant
    Filed: June 11, 1980
    Date of Patent: March 23, 1982
    Assignee: Dainippon Ink & Chemicals, Inc.
    Inventors: Shunji Arimoto, Akio Shoji, Shoichiro Takezawa, Noboru Ishikawa, Hirofumi Takeda