Patents by Inventor Yoshinobu Nakae

Yoshinobu Nakae 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).

  • Biological sensor
    Patent number: 6546267
    Abstract: A light emitting portion 3 and a light receiving portion 4 are separately formed, and firmly interposed between tape members 21 and 25 and between tape members 23 and 26, respectively. Those tape members are attached, by sticking, to the opposed locations of a surface of a finger 15 in a state that the optical axes of the light emitting portion 3 and the light receiving portion 4 are coincident with each other. The outer surfaces of them are covered with tape members 25 and 26, whereby the probe is attached to the finger 15.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: April 8, 2003
    Assignee: Nihon Kohden Corporation
    Inventors: Keiichi Sugiura, Toru Maeda, Noriaki Todokoro, Yoshinobu Nakae, Teiji Ukawa, Hideo Ozawa
  • Capnometer
    Patent number: 6267928
    Abstract: A method and apparatus for applying infrared radiation to a respiratory gas and detects a signal associated with the quantity of transmitted radiation for measuring the concentration of CO2 in the respiratory gas. The capnometer detects a maximum value of the detection signal from the thermal detector during the present inspiration phase, stores the detected maximum value in RAM, performs the first approximation, Kalman filtering or some other suitable method to compute a corrected value that is valid for the time being until a maximum value is detected in the next inspiration phase, and determines a density signal by calculating the difference between the corrected value and the detection signal.
    Type: Grant
    Filed: July 9, 1998
    Date of Patent: July 31, 2001
    Assignee: Nihon Kohden Corporation
    Inventors: Shinji Yamamori, Hidehiro Hosaka, Kohei Ono, Masami Ito, Masayuki Inoue, Masaki Sugiura, Noriaki Todokoro, Yoshinobu Nakae
  • Continuous noninvasive blood pressure measuring apparatus and method
    Patent number: 5255686
    Abstract: In a continuous noninvasive blood pressure measuring apparatus, a systolic pressure, diastolic pressure, and mean arterial pressure for calibration are measured according to the output of a pressure sensor, a cuff pressure is set lower than the diastolic pressure by a cuff pressure control section, and a reference pulse wave is obtained from the arithmetic means of a plurality of cuff pulse waves. A CPU calculates the peak value and the bottom value of the reference pulse wave, and a cuff pressure mean value corresponding to the D.C. component of the reference pulse wave, and further calculates coefficients which are used to allow the peak value, bottom value and cuff pressure mean value thus obtained to correspond to correspond to the systolic pressure, diastolic pressure, and mean arterial pressure, respectively.
    Type: Grant
    Filed: July 2, 1992
    Date of Patent: October 26, 1993
    Assignee: Nihon Kohden Corporation
    Inventors: Sunao Takeda, Hideo Ozawa, Mitsushi Hyogo, Yoshinobu Nakae