Patents by Inventor Masazo Nishida

Masazo Nishida 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).

  • Foamed polyurethane articles with skin and a method for producing the same
    Patent number: 4294880
    Abstract: A molded polyurethane article consisting of a foamed polyurethane core and a polyurethane surface skin layer as molded together as an integral unit. The above polyurethane article is produced by forming the surface skin layer of a surface-forming polyurethane composition rendered thixotropic by adding an aliphatic or functionally equivalent primary diamine as one of active hydrogen compounds in the composition and the surface layer so formed is caused to be bonded to a polyurethane core upon foaming of a foamable polyurethane composition to provide an integral article.
    Type: Grant
    Filed: August 10, 1979
    Date of Patent: October 13, 1981
    Assignee: The Toyo Rubber Industry Co., Ltd.
    Inventor: Masazo Nishida