Patents by Inventor Kimitoshi Ohishi

Kimitoshi Ohishi 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).

  • Active carbon and method for its production
    Patent number: 5880061
    Abstract: Active carbon having a pore size distribution obtained from a nitrogen adsorption isothermal line such that the volume of pores having a pore diameter of less than 15 .ANG. is at least 0.25 ml/g and constitutes at least 40% of the total volume of pores having a pore diameter of at most 300 .ANG., and the volume of pores having a pore diameter of from 100 to 300 .ANG. constitutes at least 10% of the total volume of pores having a pore diameter of at most 300 .ANG..
    Type: Grant
    Filed: June 12, 1996
    Date of Patent: March 9, 1999
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Yoshio Yoshino, Atsushi Matsumoto, Kimitoshi Ohishi, Akihide Yoshida