Patents by Inventor Jitsumi Takata

Jitsumi Takata 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).

  • Hollow fiber membrane for blood purification
    Patent number: 5266197
    Abstract: A hollow fiber membrane suitable for blood purification is provided, which is durable to .gamma.-ray sterilization and steam sterilization and is not deteriorated by the heat sterilization and which has an excellent capacity for dialysis. The membrane is made of a polyamidimide having a particular structure and has micropores having a mean pore radius of from 10 .ANG. to 200 .ANG..
    Type: Grant
    Filed: April 6, 1993
    Date of Patent: November 30, 1993
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Jitsumi Takata, Isamu Yamamoto