Patents by Inventor Yoshnori NAKANISHI

Yoshnori NAKANISHI 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).

  • DIFFUSER
    Publication number: 20200236462
    Abstract: A diffuser which forms a first acoustic passage that sound waves propagate and which radiates the sound waves to an outer diameter direction between a diaphragm and an annular conical surface of a first reflection member, and forms a second acoustic passage the sound waves which pass the opening of the first reflection member propagate and which radiates the sound waves to an outer diameter direction between the annular concave surface of the first reflection member and a conical surface of a second reflection member.
    Type: Application
    Filed: January 2, 2020
    Publication date: July 23, 2020
    Inventors: Norimasa KITAGAWA, Mitsuhiko TOKUDA, Yoshnori NAKANISHI, Ryuta SHIGEMATSU, Koichi SADAIE, Yoshitada TAKESHIMA