Patents by Inventor Tameyuki Nagano

Tameyuki Nagano 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).

  • Monofilament and process for producing the same
    Patent number: 6399197
    Abstract: The object of the present invention is to provide a monofilament which has sufficient mechanical strength to be practically used also as a string for rackets and which is excellent in workability. Disclosed is a monofilament which is formed by extruding a material prepared by blending mainly a polylactic acid type polymer (A) and an aliphatic polyester (B) other than polylactic acid, and drawing the extruded material. This could be used as a racket string which has a tenacity-elongation curve similar to that of natural gut and is excellent in water resistance and heat resistance.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: June 4, 2002
    Assignees: Shimadzu Corporation, Gosen Co., Ltd.
    Inventors: Takeshi Kanamori, Hiroshi Urayama, Yoshiyuki Ohara, Tameyuki Nagano