Patents by Inventor Katsunori Nishioka

Katsunori Nishioka 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).

  • Patent number: 5105120
    Abstract: A ferrite-containing plastic composition including a ferrite powder having an average particle size of from 100 to 500 .mu.m in an amount of at least 80% by weight based on the entire composition, a plastic and a small amount of additives.
    Type: Grant
    Filed: July 13, 1990
    Date of Patent: April 14, 1992
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Katsunori Nishioka, Shouiti Yoshiyama, Akira Naito