Patents by Inventor Hirohisa Koterasawa

Hirohisa Koterasawa 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).

  • Superabrasive wheel
    Patent number: 10307888
    Abstract: A superabrasive wheel having a superabrasive grain layer having superabrasive grains fixed by a binder, a ratio of an area occupied by the superabrasive grains in the superabrasive grain layer being 20% to 70%.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: June 4, 2019
    Assignee: A.L.M.T. Corp.
    Inventors: Masanori Hoshika, Hikaru Yamazaki, Hirohisa Koterasawa, Kenji Fukushima
  • SUPERABRASIVE WHEEL
    Publication number: 20180043506
    Abstract: A superabrasive wheel having a superabrasive grain layer having superabrasive grains fixed by a binder, a ratio of an area occupied by the superabrasive grains in the superabrasive grain layer being 20% to 70%.
    Type: Application
    Filed: September 8, 2016
    Publication date: February 15, 2018
    Inventors: Masanori Hoshika, Hikaru Yamazaki, Hirohisa Koterasawa, Kenji Fukushima