Patents by Inventor Taichiro Kawase

Taichiro Kawase 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).

  • Carbon beads, process of producing the same and chromatography column containing the same
    Patent number: 5370794
    Abstract: Carbon beads useful as a packing of liquid chromatography column are disclosed. The carbon beads according to the present invention has a pore volume index (10-50)/(1-50) of not less than 50%, total pore volume of not less than 0.15 ml/g, total volume of pores with radii of not less than 50 nm of not more than 0.1 ml/g, and a carbon content of not less than 97% by weight.
    Type: Grant
    Filed: September 7, 1993
    Date of Patent: December 6, 1994
    Assignee: Tonen Corporation
    Inventors: Takashi Obayashi, Makiko Ozawa, Taichiro Kawase