Patents by Inventor Tetsuya Hongu

Tetsuya Hongu 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).

  • Fragrant non-hollow core-in-sheath type composite staple fiber and textile material containing same
    Patent number: 5206080
    Abstract: A fragrant non-hollow core-in-sheath type composite staple fiber having a length of from 3 mm to 150 mm and useful for gradual fragrance-emitting textile materials comprises (1) a non-hollow core portion comprising (i) 0.1 to 5% of an essential oil and (ii) the balance consisting of an olefin polymer composition; and (2) a sheath portion covering the core portion and comprising a polyester resin, the olefin polymer composition (ii) comprising: (A) 50 to 98% by weight of an olefin polymer which is a polymerization product of at least one member selected from ethylene and .alpha.
    Type: Grant
    Filed: February 5, 1992
    Date of Patent: April 27, 1993
    Assignee: Tree Extracts Research Association
    Inventors: Mikio Tashiro, Tetsuya Hongu, Kazunori Orii