Patents by Inventor Tsuneo Cho

Tsuneo Cho 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).

  • Process for manufacture of plastic resinous tubes
    Patent number: 4752426
    Abstract: Plastic resinous tubes, particularly for medical use is improved in blood compatibility when brought into contact with blood, by applying a low-temperature plasma treatment to inner surfaces of the tubes, which plasma is produced through electrodeless electric discharges by the effect of microwave to make it possible to prevent the tube from being heated in such a treatment. The inner surfaces of the tubes thus activated may be further subjected to an inner surface graft copolymerization treatment to enhance blood compatibility.
    Type: Grant
    Filed: June 27, 1986
    Date of Patent: June 21, 1988
    Assignees: Yoshito Ikada, Japan Medical Supply Co., Ltd.
    Inventor: Tsuneo Cho
  • Use of molded polymeric material for preventing adhesion of vital tissues
    Patent number: 4603695
    Abstract: An adhesion preventive for preventing adhesion between vital tissues is provided. The present adhesion preventive is a molded material consisting essentially of a biodegradable and absorbable polymer. It has an advantage of requiring no reoperation for its removal since it would be degraded and absorbed after completing its function in vivo.
    Type: Grant
    Filed: June 29, 1984
    Date of Patent: August 5, 1986
    Assignee: Japan Medical Supply Co., Ltd.
    Inventors: Yoshito Ikada, Shokyu Gen, Yasuhiko Shimizu, Koichi Tamura, Tatsuo Nakamura, Sosuke Kimura, Tsuneo Cho, Hideki Tadokoro, Kazuaki Hori