Patents by Inventor Hideto Hikichi

Hideto Hikichi 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).

  • Electric sound converter
    Patent number: 6081604
    Abstract: A head-phone having a case member storing therein a headphone unit, wherein a coating film containing a light discolor pigment to be discolored by irradiation of sun light is provided on the whole surface or a predetermined surface of the case member.
    Type: Grant
    Filed: March 18, 1998
    Date of Patent: June 27, 2000
    Assignee: Kabushiki Kaisha Audio-Technica
    Inventors: Hideto Hikichi, Mitsuo Miyata, Hiroyuki Suzuki