Patents by Inventor Ryoji KUWAHATA

Ryoji KUWAHATA 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: 11957902
    Abstract: A living body stimulator includes a low-frequency pulse generator, a high-frequency signal generator, a synthesizer for forming a synthesized waveform where a high-frequency signal of the high-frequency signal generator is superimposed on a low-frequency pulse signal of the low-frequency pulse generator, a waveform control signal circuit for controlling the synthesizer so that one cycle includes an ON period of the synthesized waveform where the high-frequency signal is superimposed on the low-frequency pulse signal and an OFF period where the high-frequency signal is not superimposed on the low-frequency pulse signal, and an output transformer for receiving the synthesized waveform. An impedance on an output side of the output transformer is set such that a voltage of the synthesized waveform gradually increases and decreases during the ON period on the output of the output transformer when pads connected to the output of the output transformer are attached to the living body.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: April 16, 2024
    Inventor: Ryoji Kuwahata
  • Publication number: 20210213280
    Abstract: A living body stimulator includes a low-frequency pulse generator, a high-frequency signal generator, a synthesizer for forming a synthesized waveform where a high-frequency signal of the high-frequency signal generator is superimposed on a low-frequency pulse signal of the low-frequency pulse generator, a waveform control signal circuit for controlling the synthesizer so that one cycle includes an ON period of the synthesized waveform where the high-frequency signal is superimposed on the low-frequency pulse signal and an OFF period where the high-frequency signal is not superimposed on the low-frequency pulse signal, and an output transformer for receiving the synthesized waveform. An impedance on an output side of the output transformer is set such that a voltage of the synthesized waveform gradually increases and decreases during the ON period on the output of the output transformer when pads connected to the output of the output transformer are attached to the living body.
    Type: Application
    Filed: March 26, 2021
    Publication date: July 15, 2021
    Inventor: Ryoji KUWAHATA