Patents by Inventor Toshikazu Kiyohara

Toshikazu Kiyohara 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).

  • Creasing method, creasing apparatus, and long fiber non-woven fabric
    Patent number: 11761147
    Abstract: A creasing method includes: a gripping and rotating step of bunching and gripping a continuously drawn long fiber non-woven fabric and rotating the gripped part so that the long fiber non-woven fabric is twisted and a first folding line is formed; a heating step of heating the twisted long fiber non-woven fabric to fix the first folding line; and a widening step of releasing the long fiber non-woven fabric having the first folding line formed thereon.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: September 19, 2023
    Assignee: ENEOS CORPORATION
    Inventors: Toshikazu Kiyohara, Yuji Nishimura
  • CREASING METHOD, CREASING APPARATUS, AND LONG FIBER NON-WOVEN FABRIC
    Publication number: 20210164155
    Abstract: A creasing method includes: a gripping and rotating step of bunching and gripping a continuously drawn long fiber non-woven fabric and rotating the gripped part so that the long fiber non-woven fabric is twisted and a first folding line is formed; a heating step of heating the twisted long fiber non-woven fabric to fix the first folding line; and a widening step of releasing the long fiber non-woven fabric having the first folding line formed thereon.
    Type: Application
    Filed: July 12, 2019
    Publication date: June 3, 2021
    Applicant: ENEOS CORPORATION
    Inventors: Toshikazu KIYOHARA, Yuji NISHIMURA
  • Method of making compensator for liquid crystal display
    Patent number: 5413657
    Abstract: A compensator for a liquid crystal display device is made by applying a solution containing a liquid crystalline polymer onto an orientation substrate, then allowing the liquid crystalline polymer to be oriented, and thereafter transferring the resulting layer of the liquid crystalline polymer on the orientation substrate onto a light transmitting substrate, said solution containing the liquid crystalline polymer having incorporated therein 0.01% to 10% by weight of a surface active agent relative to the liquid crystalline polymer.
    Type: Grant
    Filed: June 3, 1993
    Date of Patent: May 9, 1995
    Assignee: Nippon Oil Company, Limited
    Inventors: Teruaki Yamanashi, Shinichirou Suzuki, Yoshio Tsujimoto, Toshikazu Kiyohara