Patents by Inventor Keiso Mori

Keiso Mori 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).

  • Sphere-like magnetite particles and a process for producing the same
    Patent number: 4992191
    Abstract: Disclosed herein are sphere-like magnetite particles showing an apparent density of from 0.40 to 1.00 g/cm.sup.3 and a high thermo-stability and containing from 0.1 to 5.0 atomic % of Si to Fe, and a process for producing the sphere-like magnetite particles.
    Type: Grant
    Filed: January 11, 1989
    Date of Patent: February 12, 1991
    Assignee: Toda Kogyo Corporation
    Inventors: Keiso Mori, Masaru Kawabata, Masao Kunishige, Nanao Horiishi, Koji Toda