Patents by Inventor Kensaku Ueki

Kensaku Ueki 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).

  • Flexible tube for endoscope, material used for producing outer cover of the flexible tube, and production method of the flexible tube
    Patent number: 6599239
    Abstract: A flexible tube for an endoscope includes a flexible elongated structural body and an outer cover provided over the elongated structural body. The outer cover is made of a material which contains polyurethane elastomer and polyester elastomer, in which compounding ratio of the polyurethane elastomer and the polyester elastomer in the material is 0.03-0.3 parts by weight of the polyester elastomer per 1 part by weight of the polyurethane elastomer. This flexible tube has excellent flexibility as well as various excellent properties such as chemical resistance, heat resistance and weather resistance.
    Type: Grant
    Filed: December 13, 2000
    Date of Patent: July 29, 2003
    Assignee: Pentax Corporation
    Inventors: Shinji Hayakawa, Kensaku Ueki
  • Flexible tube for endoscope, material used for producing outer cover of the flexible tube, and production method of the flexible tube
    Publication number: 20010007917
    Abstract: A flexible tube for an endoscope includes a flexible elongated structural body and an outer cover provided over the elongated structural body. The outer cover is made of a material which contains polyurethane elastomer and polyester elastomer, in which compounding ratio of the polyurethane elastomer and the polyester elastomer in the material is 0.03-0.3 parts by weight of the polyester elastomer per 1 part by weight of the polyurethane elastomer. This flexible tube has excellent flexibility as well as various excellent properties such as chemical resistance, heat resistance and weather resistance.
    Type: Application
    Filed: December 13, 2000
    Publication date: July 12, 2001
    Applicant: ASAHI KOGAKU KOGYO KABUSHIKI KAISHA
    Inventors: Shinji Hayakawa, Kensaku Ueki