Patents by Inventor Michio Anzai

Michio Anzai 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).

  • Method of manufacturing flexible resin hose
    Patent number: 6855287
    Abstract: A hose 20 made of thermoplastic resin is heated by flowing high temperature such as vapor into the hose, the flow of the high temperature fluid is restricted downstream of he hose to pressurize an interior of the hose. The hose heated in this manner is bent by bending jigs 51 and 52. Lastly, cold temperature fluid such as water is allowed to flow into the hose to cool and harden the hose, thereby producing a flexion resin hose. Alternatively, the hose is formed with a corrugated portion having uneven characteristics in its circumferential direction with respect to tensile strength in the axial direction. High temperature and high pressure fluid is allowed to flow into the hose to heat and pressurize the hose, thereby bending the corrugated portion by an internal pressure. Then, cold temperature fluid is allowed to flow into the hose to cool and harden the hose, thereby producing the flexion resin hose.
    Type: Grant
    Filed: May 1, 2000
    Date of Patent: February 15, 2005
    Assignee: Piolax, Inc.
    Inventor: Michio Anzai