Patents by Inventor Jun Kishikami

Jun Kishikami 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).

  • Laminated loudspeaker diaphragm with honeycomb core and damping layers
    Patent number: 4291205
    Abstract: A diaphragm for an electro acoustic transducer, such as a loudspeaker, includes first and second parallel sheet members, a honeycomb core member sandwiched between the sheet members, and a damping layer interposed between each sheet member and the honeycomb core member for increasing the internal energy loss of the diaphragm.
    Type: Grant
    Filed: September 13, 1979
    Date of Patent: September 22, 1981
    Assignee: Sony Corporation
    Inventors: Yoshiyuki Kamon, Jun Kishikami