Patents by Inventor Masaaki Sukeda

Masaaki Sukeda 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: 4808642
    Abstract: This invention relates to a chlorine-containing resin molding characterized by its stabilization by aminocarboxylic acid and from which molding substantially no metallic ion is detected, and to material for use with the chlorine-containing resin molding consisting of 100 parts by weight of chlorine-containing resin and 0.5-5.0 parts by weight of aminocarbolyxic acid. According to the molding and the material for use therewith, there is no possibility of metallic ion dissolving from the molding in which a metallic stabilizer is conventionally used, with the result that the molding finds wide application in the industrial field related with electric parts including a semiconductor as a main item, medical treatment, chemicals and pharmaceuticals, and food stuffs, all subject to adverse effects by dissolution of metallic ion. Consideration for application of a nonmetallic agent is also given to the use of a coloring agent and a lubricant with respect to the molding and the material for use therewith.
    Type: Grant
    Filed: April 25, 1986
    Date of Patent: February 28, 1989
    Assignee: Takiron Co., Ltd.
    Inventors: Hideki Kitada, Masami Takahashi, Toshiyuki Yagi, Masaaki Sukeda, Tadashi Nakayama