Patents by Inventor Hirofumi Takase

Hirofumi Takase 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).

  • Additive-containing molded resin and process for producing the same
    Patent number: 6569531
    Abstract: An additive-containing resin molded article which suffers from little exudation or vaporization of an additive and sustains the effect of the additive for a long period of time and in which reductions in various physical properties due to molecular weight reduction of a polyester resin are suppressed, and a process for producing the same are provided. When a polyester resin 5 is heat-melted and molded into a prescribed shape by means of an extruder 1, etc., a bi- or multi-functional additive 6 having at least one of a functional hydroxyl group, carboxyl group, amino group, and ester bond is added and allowed to react with the polymer molecules of the molten polyester resin 5 to obtain an additive-containing resin molded article 50 in which the additive 6 is bonded to the polymer molecules through an ester linkage or an amide linkage.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: May 27, 2003
    Assignee: Takiron Co., Ltd.
    Inventors: Hirofumi Takase, Yoichiro Makimura