Patents by Inventor Tadayoshi Hamaguchi

Tadayoshi Hamaguchi 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).

  • Ultrasonic sealer
    Patent number: 6605178
    Abstract: An ultrasonic sealing apparatus comprises at least one horn having an elongated sealing face for sealing a packing material. Plural converters are erected on a side of the horn opposite to the sealing face for resonating the horn with a vibrating frequency. The ultrasonic sealing apparatus has a length that is one wavelength of the vibrating frequency and is fixed in position to a sealing jaw at a nodal plane of the vibrating frequency.
    Type: Grant
    Filed: September 22, 2000
    Date of Patent: August 12, 2003
    Assignee: Shikoku Kakoki Co., Ltd.
    Inventors: Mitsuhiko Shinohara, Takeshi Iseki, Michio Ueda, Satoshi Kume, Osamu Tamamoto, Tadayoshi Hamaguchi