Patents by Inventor Ryutaro NUMAO

Ryutaro NUMAO 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).

  • SPHERICAL ALN PARTICLES AND METHOD OF PRODUCTION OF SAME, AND COMPOSITE MATERIAL CONTAINING SAME
    Publication number: 20230312343
    Abstract: Aluminum nitride particles which are excellent in high thermal conductivity and useful as a filler for a heat dissipating material and which have good fluidity for improving the fillability, that is, spherical AlN particles containing Zr atoms with respect to Al atoms in an amount of a molar ratio Zr/Al=4.0×10?4 to 4.2×10?2, having an AlN conversion rate of 70.0% or more, and having a circularity of 0.85 to 1.00.
    Type: Application
    Filed: August 18, 2021
    Publication date: October 5, 2023
    Applicant: NIPPON STEEL Chemical & Material Co., Ltd.
    Inventors: Kazuhiko KUSUNOKI, Kenya SATO, Hiroto UNNO, Ryutaro NUMAO