Patents by Inventor Mitsuhiko Okui

Mitsuhiko Okui 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).

  • Cotton yarn-like textured composite yarn and a process for manufacturing the same
    Patent number: 4296597
    Abstract: A textured composite yarn having the appearance and touch of a cotton yarn comprises a core yarn and a sheath yarn composed of a plurality of filaments, said sheath yarn wrapping around the core yarn. A part of the filaments of the sheath yarn wrap around the core yarn with a successive alternate twist and are substantially cohered and partially adhered to the core yarn. The composite yarn is made by simultaneous draw-false twisting and heating two component yarns having different fusing temperatures, one of the component yarns being overfed in relation to the other component yarn.
    Type: Grant
    Filed: February 6, 1980
    Date of Patent: October 27, 1981
    Assignee: Teijin Limited
    Inventors: Masayuki Tani, Mitsuhiko Okui, Mitsuo Matsumoto