Patents by Inventor Hideaki Kitou

Hideaki Kitou 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).

  • Indwelling catheter with improved kinking resistance
    Patent number: 5993436
    Abstract: An indwelling catheter is made of a polyurethane resin having a Shore hardness of 60D or more. The soft segment of the polyurethane resin is constituted by polycaprolactone. The indwelling catheter has a kinking resistance of 10 mm or more when measured at 37.degree. C. in wet state. The Young's modulus is at first 20 kgf/mm.sup.2 or more when measure at 25.degree. C. in dry state, and reduces to 15 kgf/mm.sup.2 or less by soaking it in water of 37.degree. C. for 5 minutes or less.
    Type: Grant
    Filed: November 3, 1998
    Date of Patent: November 30, 1999
    Assignee: Terumo Kabushiki Kaisha
    Inventors: Hideaki Kitou, Yoshihide Toyokawa, Takayasu Shimazaki, Kenji Ishikawa
  • Thermoformed medical device with lubricious modified polyethylene oxide layer
    Patent number: 5908656
    Abstract: This invention provides a medical device in which its lubricity is continually maintained and its safety is guaranteed.Particularly, it provides a medical device in which lubricity is generated on at least a portion of its surface when the device is contacted with body fluids or exposed to physiological aqueous conditions, wherein the lubricity-generating portion is formed by thermoforming.
    Type: Grant
    Filed: July 10, 1997
    Date of Patent: June 1, 1999
    Assignee: Terumo Kabushiki Kaisha
    Inventors: Kenji Ishikawa, Hideaki Kitou, Kenichi Shimura, Yasunobu Zushi, Naoki Ishii, Taku Aoike