Patents by Inventor Tadayuki Itakura

Tadayuki Itakura 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).

  • Patent number: 5264656
    Abstract: A device for electronically generating a sound according to the present invention includes an integrated circuit chip producing electronic signals corresponding to a desired melody, a switch controlling the ON and OFF states of the integrated circuit chip, a battery powering the integrated circuit chip, a sound generator having a dish-shaped vibrating plate and producing sounds responsive to the electronic signals, and a circuit pattern section having a plurality of lead portions interconnecting the integrated circuit chip, the switch, the battery and the sound generator. The circuit pattern section is formed by punching a conductive metal sheet in a press. Selected ones of the lead portions can advantageously be formed by punching into the battery holder or the switch. According to one aspect of the invention, an acoustic chamber is defined by the sound generator and a cover formed by potting or injection molding.
    Type: Grant
    Filed: February 28, 1991
    Date of Patent: November 23, 1993
    Assignee: Kabushiki Kaisha Sankyo Seiki Seisakusho
    Inventors: Tadayuki Itakura, Mutsumi Aruga, Makoto Orii, Masaki Yamamoto, Shigeyoshi Takagi