Patents by Inventor Kimimasa Yamada

Kimimasa Yamada 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 producing cytotoxic T-cells and compositions produced by said process
    Patent number: 4839290
    Abstract: A method of inducing antitumor immunocytes which is simple in operation and suitable for inducing antitumor immunocytes having not only excellent cytotoxic activity against tumor cells but also high safety, which method comprises contacting leucocytes with an insoluble, antitumor immunocyte-inducing material capable of linking with T cells, said antitumor immunocyte-inducing material comprising an insoluble carrier and a ligand linked therewith. The induced antitumor immunocytes can be simply separated in substantially ligand-free form from the insoluble, antitumor immunocyte-inducing material. The obtained antitumor immunocytes have not only excellent cytotoxic activity against tumor cells but also high safety.
    Type: Grant
    Filed: September 8, 1987
    Date of Patent: June 13, 1989
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Takeji Kaieda, Kimimasa Yamada, Naokuni Yamawaki