Patents by Inventor Yasuhiro KITAGISHI

Yasuhiro KITAGISHI 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).

  • Publication number: 20180195162
    Abstract: Disclosed herein is a vanadium-based coating film having a high film hardness. When subjected to X-ray diffraction using Cu Ka radiation, the vanadium-based coating film has peaks at diffraction angles 2? of 29.9 degrees or more but 30.3 degrees or less, 33.2 degrees or more but 33.6 degrees or less, and 69.8 degrees or more but 70.6 degrees or less, and has a maximum intensity at a diffraction angle 2? of 33.2 degrees or more but 33.6 degrees or less. This vanadium-based coating film has a film hardness HV of 3500 to 5000, and therefore has a hardness higher than those of conventional vanadium-based coating films.
    Type: Application
    Filed: November 4, 2016
    Publication date: July 12, 2018
    Inventors: Yasuhiro KITAGISHI, Yoshiyasu NANJO, Kenichi OKAZAKI