Patents by Inventor Shozo Sone

Shozo Sone 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).

  • Reinforced non-woven fabric
    Patent number: 4722857
    Abstract: The present invention provides a reinforced non-woven fabric comprising a web containing at least 15% by weight of composite fiber composed of a low-melting component and a high-melting component, the low-melting component forming at least a part of the external fiber surface, first reinforcing fibers arranged obliquely to the lengthwise direction of the web, and second reinforcing fibers crossed with the first reinforcing fibers for symmetric arrangement relative to the lengthwise direction of the web, the first and second reinforcing fibers containing at least 15% by weight of hot-melt-adhesive fiber hot-melt-adhered in the heat treatment conducted for forming the non-woven fabric at a temperature between the melting point of the high-melting component and that of the low-melting component of the hot-melt-adhesive composite fiber.
    Type: Grant
    Filed: March 3, 1987
    Date of Patent: February 2, 1988
    Assignees: Chisso Corporation, Fukusuke Kogyo Corporation, Fukuron Corporation
    Inventors: Susumu Tomioka, Shozo Sone