Patents by Inventor Naoto Iwashita

Naoto Iwashita 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).

  • Patent number: 10897959
    Abstract: Provided in the present invention is an outsole formed of a polymer crosslinked product having a JIS A hardness of 90 or less and a tear strength of 40 kgf/cm or more and having a certain relationship between a storage modulus (E23) at 23° C. and 10 Hz and a storage modulus (E160) at 160° C. and 10 Hz, to reduce the weight of a shoe.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: January 26, 2021
    Inventors: Yuto Shimizu, Naoto Iwashita
  • Publication number: 20190208861
    Abstract: Provided in the present invention is an outsole formed of a polymer crosslinked product having a JIS A hardness of 90 or less and a tear strength of 40 kgf/cm or more and having a certain relationship between a storage modulus (E23) at 23° C. and 10 Hz and a storage modulus (E160) at 160° C. and 10 Hz, to reduce the weight of a shoe.
    Type: Application
    Filed: August 16, 2016
    Publication date: July 11, 2019
    Inventors: Yuto Shimizu, Naoto Iwashita