Patents by Inventor Toshiitsu Iwai

Toshiitsu Iwai 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).

  • Flexible laminated surface material and method of producing the same
    Patent number: 5508080
    Abstract: A flexible laminated surface material has an outer material and a laminate wadding composed of a fibrous web and a nonwoven fabric sheet that are together needle punched. Parts of filaments of the web penetrate through the nonwoven fabric sheet, thus forming many small protrusions on the nonwoven fabric sheet. The outer material is adhered, using entire area or spot adhesion techniques, to the nonwoven fabric sheet side of the wadding with a substantial adhesion strength. By varying the amount of the adhesion applied, different types of adhesion can be achieved.
    Type: Grant
    Filed: September 7, 1994
    Date of Patent: April 16, 1996
    Assignees: Takashimaya Nippatsu Kogyo Co. Ltd., Ohtsuka Sangyo Material Co. Ltd.
    Inventors: Yuuichi Sorimachi, Hidemi Itatani, Takashi Hirose, Toshiitsu Iwai, Youichi Fujiyama, Haruo Kato, Keiichiro Ohtsuka