Patents by Inventor Mashayoshi Kainuma

Mashayoshi Kainuma 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).

  • High abrasion resistant aluminum bronze alloy, and sliding members using same
    Patent number: 5296057
    Abstract: The object of the present invention is to provide an abrasion resistant aluminum bronze alloy for sliding members of various industrial machines.The abrasion resistant aluminum bronze alloy consists of Al: 7-12%, Mn: 1.5-5.5%, Si: 0.45-2.7%, respectively in weight, and the rest is substantially Cu, wherein metallic compound of Mn and Si is dispersed among said alloy structure, and elongation percentage is at least 5%.The abrasion resistant aluminum bronze alloy is superior to conventional aluminum bronze alloy (JIS-ALBC2) in seizure resistance and abrasion resistance by more than two times.
    Type: Grant
    Filed: September 21, 1992
    Date of Patent: March 22, 1994
    Assignee: Hitachi, Ltd.
    Inventors: Noboru Baba, Katsuhiko Komuro, Masateru Suwa, Mitsuo Chigasaki, Yozo Kumagai, Mashayoshi Kainuma, Masaru Sakakura