Patents by Inventor Aki Nakatsukasa

Aki Nakatsukasa 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).

  • Sleep diagnosis device
    Patent number: 7766841
    Abstract: The sleep diagnosis device 1 of the present invention comprises three-dimensional acceleration sensors 2a and 2b, a posture detector 5 which detects a posture of the patient from a DC component of the three-dimensional acceleration sensors, and a breathing movement detector 4 which detects a breathing movement of the patient from the AC component of the three-dimensional acceleration sensors. The sleep diagnosis device of the present invention can detect the posture (sleeping posture) and the breathing movement of the patient by using one three-dimensional acceleration sensor, so it is possible to reduce the number of sensors. Furthermore, the sleep diagnosis device can detect the breathing movement accurately by the three-dimensional acceleration sensors.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: August 3, 2010
    Assignee: Panasonic Electric Works Co., Ltd.
    Inventors: Matsuki Yamamoto, Shogo Fukushima, Aki Nakatsukasa
  • Sleep diagnosis device
    Publication number: 20090062628
    Abstract: The sleep diagnosis device 1 of the present invention comprises three-dimensional acceleration sensors 2a and 2b, a posture detector 5 which detects a posture of the patient from a DC component of the three-dimensional acceleration sensors, and a breathing movement detector 4 which detects a breathing movement of the patient from the AC component of the three-dimensional acceleration sensors. The sleep diagnosis device of the present invention can detect the posture (sleeping posture) and the breathing movement of the patient by using one three-dimensional acceleration sensor, so it is possible to reduce the number of sensors. Furthermore, the sleep diagnosis device can detect the breathing movement accurately by the three-dimensional acceleration sensors.
    Type: Application
    Filed: May 17, 2006
    Publication date: March 5, 2009
    Applicant: Matsushita Electric Works, Ltd.
    Inventors: Matsuki Yamamoto, Shogo Fukushima, Aki Nakatsukasa