Patents by Inventor Naoki Ishigami

Naoki Ishigami 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).

  • Tungsten-infused aluminum nitride crystals and methods of forming them
    Patent number: 12344957
    Abstract: In various embodiments, polycrystalline AlN ceramics, single-crystalline AlN boules, and/or single-crystalline AlN substrates are infused with tungsten present on the surface and/or within the bulk thereof. The tungsten-infused AlN materials may be utilized to fabricate electronic and/or optoelectronic (e.g., light-emitting) devices thereon.
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: July 1, 2025
    Assignee: CRYSTAL IS, INC.
    Inventors: Robert T. Bondokov, Sean P. Branagan, Naoki Ishigami, Thomas Miebach, Jianfeng Chen