Patents by Inventor Nobuyuki Aizawa

Nobuyuki Aizawa 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).

  • Pulse wave sensor and pulse rate detector
    Publication number: 20020188210
    Abstract: A pulse wave sensor for detecting a pulse wave by detecting light output from a light emitting diode and reflected from the artery of a wrist of a subject, the sensor comprising four photodetectors disposed around the light emitting diode symmetrically on a circle concentric to the light emitting diode, and a pulse rate detector comprising the pulse wave sensor and means of computing the pulse rate of a subject based on the output of the pulse wave sensor.
    Type: Application
    Filed: May 23, 2002
    Publication date: December 12, 2002
    Inventor: Nobuyuki Aizawa