Patents by Inventor Tadahiko Yamashita

Tadahiko Yamashita 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).

  • Aluminum base alloy containing boron and manufacturing method thereof
    Patent number: 5925313
    Abstract: There is provided an Al base alloy containing boron which is superior in mechanical properties such as strength, ductility or workability and the like and has a neutron absorbing capacity and an ability to recycle. This is an Al base alloy containing boron with Mg: 2 to 8% (massed %, similarly applied hereinafter) and B: 0.5 to 1.5% and satisfying a relation of .sup.10 B/(.sup.10 B+.sup.11 B).gtoreq.95%, and a rate of AlB.sub.2 in all boron compounds is 80% or more by a volumetric rate.
    Type: Grant
    Filed: April 22, 1996
    Date of Patent: July 20, 1999
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Katsura Kajihara, Haruo Kakunai, Yuichi Seki, Tadahiko Yamashita, Masahiro Yanagawa