Patents by Inventor Takashi Inai

Takashi Inai 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).

  • Publication number: 20080243012
    Abstract: In an electrocardiogram telemeter, a data acquirer is operable to acquire electrocardiogram data. A data compressor is operable to compress the electrocardiogram data with either a wavelet transform, a Huffman coding, or an arithmetic coding, thereby generating compressed electrocardiogram data adapted to be transmitted to a remote receiver which is configured to reconstruct the electrocardiogram data.
    Type: Application
    Filed: March 29, 2007
    Publication date: October 2, 2008
    Applicant: NIHON KOHDEN CORPORATION
    Inventors: Hisayuki Fujihashi, Katsuyoshi Suzuki, Katsuhide Tone, Takashi Inai
  • Patent number: 5590652
    Abstract: Disclosed is a drive circuit for driving a light emitting diode in a pulse oximeter comprising at least two light emitting elements different in wavelength for irradiating a living tissue containing an arterial blood; a light receiving element for receiving light containing one of a reflected light and a transmitted light irradiated from the light emitting elements; a power supply for applying intermittently an inverse bias voltage toward the light emitting elements; and an inductor for applying an inverse electromotive voltage to the light emitting elements, the inductor being connected to the light emitting elements in parallel, wherein a ratio between light absorption change with respect to two wavelengths obtained from optical outputs of the light receiving element so as to obtain a degree of oxygen saturation of arterial blood.
    Type: Grant
    Filed: February 22, 1996
    Date of Patent: January 7, 1997
    Assignee: Nihon Kohden Corporation
    Inventor: Takashi Inai