Patents by Inventor Hiroyuki Maeba

Hiroyuki Maeba 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 for joining polyolefin pipes and treatment for the joining
    Patent number: 6436224
    Abstract: The present invention provides a technique for joining polyolefin pipes by means of a polyolefin joint, the method comprising the steps of placing a treatment containing a silicon compound or a treatment containing a silicon compound and a reaction accelerator between the pipes and the joint and heating a joining portion.
    Type: Grant
    Filed: October 13, 1999
    Date of Patent: August 20, 2002
    Assignee: Osaka Gas Company Limited
    Inventors: Hiroyuki Nishimura, Yuji Higuchi, Shinichi Kawasaki, Hiroyuki Maeba, Hirofumi Ueda, Shiro Sakai, Hiroaki Zaima