Patents by Inventor Masaru Kudho

Masaru Kudho 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).

  • Composition adaptable or suitable for being marked and molding thereof
    Patent number: 5792807
    Abstract: The present invention relates to a marking composition capable of developing a vivid white color upon the application of laser beams, which composition comprises a polyolefin resin having no fluidity at a temperature of 50.degree. C. and at least one inorganic material selected from talc, calcium carbonate and aluminum hydroxide, wherein the inorganic material is blended in a ratio of 1-300 w/w % based upon the polyolefin resin. The invention also provides the resin moldings obtained by molding the marking compositions.
    Type: Grant
    Filed: September 18, 1996
    Date of Patent: August 11, 1998
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Shoiti Hayashihara, Masaru Kudho, Masaki Shinmoto, Chie Umeyama