Patents by Inventor Zyozi Kan

Zyozi Kan 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 insulating paper where the paper is frictionally calendered
    Patent number: 3957573
    Abstract: Polyolefin fibers containing at least 70% by weight of polypropylene fibers having a denier of at least 0.5 and a birefringence of at least 2.5 .times. 10.sup.-.sup.2 are formed into a sheet. The sheet is then frictionally calendered in the dry state at a frictional ratio of at least 15% and at a temperature in the range from 90.degree.C to 160.degree.C whereby an insulating paper having excellent air-impermeability and oil-resistance is obtained.
    Type: Grant
    Filed: November 8, 1972
    Date of Patent: May 18, 1976
    Assignees: Dainichi-Nippon Cables, Ltd., Mitsubishi Rayon Co., Ltd.
    Inventors: Haruo Miyamoto, Ikuo Igami, Masaru Uehara, Hideo Fujita, Hirotaka Itoh, Zyozi Kan