Patents by Inventor Humito Shimada

Humito Shimada 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).

  • Thermoplastic elastomer composition and Freon gas hose made thereof
    Patent number: 4987017
    Abstract: A thermoplastic elastomer composition which comprises 25-95% by weight of a polyamide and 75-5% by weight of a halogenated butyl rubber, a chlorosulfonated polyethylene or both thereof. Said composition is excellent in resistance to Freon gas permeation and has good oil resistance and low-temperature resistance. A hose wherein the layer to be contacted with a gas is made of the above thermoplastic elastomer composition is suitable as a Freon gas R-22 hose.
    Type: Grant
    Filed: February 28, 1990
    Date of Patent: January 22, 1991
    Assignee: Japan Synthetic Rubber Co., Ltd.
    Inventors: Hozumi Sato, Humito Shimada, Akio Sakaguchi, Yasuhiko Takemura, Tadaaki Nishi, Hisao Ono, Masanobu Nagano, Takumi Miyachi