Patents Assigned to Junkosma Co., Ltd.
  • Contrast medium-containing tube
    Patent number: 5165975
    Abstract: A contrast medium-containing tube is provided which is a thermoplastic resin tube incorporated with a white bismuth compound composed mainly of bismuth oxide containing 70-85 wt % bismuth and having a particle diameter substantially smaller than 20 .mu.m. This contrast medium-containing tube looks white and remains white in appearance over a long period of time. It is easy to carry out extrusion molding for producing this contrast medium-containing tube.
    Type: Grant
    Filed: April 30, 1991
    Date of Patent: November 24, 1992
    Assignee: Junkosma Co., Ltd.
    Inventor: Keigo Goshiki