Patents by Inventor Hazime Yamazaki

Hazime Yamazaki 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).

  • Puncture sealant for a tire
    Patent number: 4300614
    Abstract: A cured puncture sealant for a tire which comprises (1) either a copolymer of at least one acrylate selected from 2-ethylhexyl acrylate and n-butyl acrylate, and a glycidyl monomer, or a copolymer of at least one of the above acrylates, a glycidyl monomer, and at least one other acrylic monomer, and (2) a curing agent for epoxy resin. The sealant may optionally further include a polymer whose solubility parameter to the above copolymer is in the range of .+-.0.5. The sealant is most effective as a puncture sealant for a tubeless tire.
    Type: Grant
    Filed: August 28, 1979
    Date of Patent: November 17, 1981
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Kunio Kageyama, Shigeo Omote, Youichi Taguchi, Hazime Yamazaki