Patents by Inventor Takashi Kozakura

Takashi Kozakura 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).

  • Method for manufacturing fibril system fiber
    Patent number: 6248267
    Abstract: The present invention provides fibril system fibers which may be employed in filter applications and in artificial leather applications, and also provides an industrially superior manufacturing method for such fibril system fibers, and a spinning nozzle. The fibril fibers of the present invention include at least one macromolecular polymer having a film forming ability, and they have a structure in which fibrillated fibers having a diameter of 10 micrometers or less branch from main fibers having a width within a range of 0.1 micrometers-500 micrometers, and a length within a range of 10 micrometers-10 cm.
    Type: Grant
    Filed: August 27, 1998
    Date of Patent: June 19, 2001
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Yoshihiko Hosako, Teruyuki Yamada, Katsuhiko Shinada, Hideaki Habara, Shigeki Ogawa, Sadatoshi Nagamine, Keiji Hirota, Takashi Kozakura