Patents by Inventor Ryozo Hata

Ryozo Hata 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).

  • Spray micropellets
    Patent number: 4678511
    Abstract: The present invention provides improved spray micropellets having a particle size of 5-150 .mu.m mainly composed of micropellets of high carbon ferrochrome alloy fine powder having an average particle of 0.5-20 .mu.m, mainly containing Cr 20-80 wt. %, Fe 15-75 wt. %, C 5-10 wt. %, Si less than 10 wt. % and Ti and Mn as unavoidable impurities.The spray micropellets are particularly useful for sliding parts having high sealing effects such as pistons and the like.
    Type: Grant
    Filed: September 5, 1985
    Date of Patent: July 7, 1987
    Assignee: Awamura Metal Industry Co., Ltd.
    Inventors: Junichi Yasuoka, Sumio Kamiyama, Kiyomi Ashida, Ryozo Hata