Patents by Inventor Shigetaka Watanabe

Shigetaka Watanabe 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).

  • Fluid conveying hose
    Patent number: 4510974
    Abstract: A plastic hose suitable for conveying refrigerant in a liquid or gas phase, liquefied gas such as LPG, volatile liquids, or gases such as CO.sub.2, O.sub.2 or N.sub.2 having an impermeable layer or a barrier. The amount of permeation of the gas in the hose to the outside and the amount of permeation of moisture into the hose are limited to extremely small values.
    Type: Grant
    Filed: November 8, 1982
    Date of Patent: April 16, 1985
    Assignee: Hitachi Cable Ltd.
    Inventors: Takeshi Natori, Yoji Kobayashi, Shigetaka Watanabe, Katsumi Shimizu, Ikuei Matsumura, Yoshihiro Namekawa, Satoshi Miyanaga
  • Article having hard film, a flexible body and a fiber layer disposed therebetween
    Patent number: 4469729
    Abstract: This invention relates to a flexible article comprising rubberlike body having a surface hard film, e.g., a hose, a handrail, a belt or a diaphragm, wherein a fiber layer comprising non-woven or woven fabrics is positioned between the surface hard film and the rubberlike body by use of an adhesive to eliminate generation of the so-called joint cracking phenomenon, i.e., extension of cracking to the rubberlike body accompanying cracking at the hard film caused by any shock.
    Type: Grant
    Filed: May 26, 1982
    Date of Patent: September 4, 1984
    Assignee: Hitachi Cable Ltd.
    Inventors: Shigetaka Watanabe, Masahiro Suzuki, Yoshiaki Matsuga