Patents Assigned to Fukuda Denshi Co., Ltd.
  • Patent number: 10271759
    Abstract: A body fat measurement device includes: a measurement unit for measuring a shape of a measurement subject's trunk area; a breathing estimation unit that detects a change over time in the measured trunk area shape and estimates the measurement subject's breathing based on the detected change; a breathing state determination unit that determines whether or not the estimated breathing of the measurement subject is in a state suited to measurement; a state output unit that outputs the estimated breathing state to the exterior in association with a result of the determination; and a fat mass calculation unit that calculates a trunk area fat mass using the body impedance measured by a body impedance measurement unit and a trunk area size based on the trunk area shape measured by the measurement unit.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: April 30, 2019
    Assignee: FUKUDA DENSHI CO., LTD.
    Inventors: Yasuaki Murakawa, Takehiro Hamaguchi, Kazuhisa Tanabe, Hiromichi Karo
  • Patent number: 9740820
    Abstract: A blood pressure meter, a thermometer, and a pulse oximeter are connected to the control apparatus, and the control apparatus includes an input unit configured to wirelessly input information identifying a measurement time and unique information along with the measurement value from the measurement devices, a processing unit configured to store the inputted measurement value and unique information in a memory, and an authentication unit configured to authenticate the measurement device that inputted the measurement value as being the same as a measurement device that inputted a stored measurement value by comparing the unique information with unique information stored along with a measurement value measured prior to the inputted measurement value. Here, the processing unit is configured to store the inputted measurement value in the case where the authentication succeeds.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: August 22, 2017
    Assignee: FUKUDA DENSHI CO., LTD.
    Inventor: Tomonori Inoue
  • Patent number: 8874199
    Abstract: The estimated contour positions of the atrium and ventricle are obtained from multi-channel electrocardiographic waveforms. Information useful to predict the possibility of the occurrence of fatal arrhythmia, such as the position of the maximum excitation propagation point, the distribution of the late potential(LP) as an index of depolarization abnormality, and the distribution of the RT dispersion as an index of repolarization abnormality are displayed together with the estimated contour positions.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: October 28, 2014
    Assignees: Fukuda Denshi Co., Ltd., ICS Co., Ltd.
    Inventors: Hiroshi Kawada, Kiyoshi Inui, Kenji Nakai, Manabu Itoh
  • Patent number: 8715198
    Abstract: Disclosed is a sphygmomanometer exhaust valve having a valve that functions as a lever, and in which a solenoid moves the point of force of the valve to urge a valve membrane formed at the point of action against a ventilation port. A support member supports the valve while fixing its fulcrum. When no electric current is supplied to the solenoid, the support member holds the valve in a predetermined position in which the ventilation port is open.
    Type: Grant
    Filed: June 6, 2007
    Date of Patent: May 6, 2014
    Assignee: Fukuda Denshi Co., Ltd.
    Inventors: Tomohiro Nunome, Takehito Fukunaga
  • Patent number: 8016762
    Abstract: Blood pressure values measured in four limbs are plotted on first to fourth linear axes which extend from an origin in an upper right direction, an upper left direction, a lower left direction, and a lower right direction respectively, and a rectangle composed of vertices which are determined by the plotted blood pressure values is illustrated to present the blood pressure values. This allows a specific measured value in each site to be easily known, and the relationships between the blood pressure values in the four limbs are intuitively understood from the shape of the rectangle.
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: September 13, 2011
    Assignee: Fukuda Denshi Co., Ltd.
    Inventors: Yasuei Ogawa, Yoshiya Muraki, Tomoyuki Yamamoto
  • Patent number: 7957785
    Abstract: A waterproof bioelectrode includes an electrode pad (101) to be mounted on a living body and a lead wire (110) to be connected to the electrode pad. The electrode pad includes a waterproof base (106) having an adhesive contacting surface and a hole substantially at its center, a waterproof seal member (105) which fixes the lead wire to a lower surface of the contacting surface of the base while covering the hole such that a detection electrode provided to a distal end of the lead wire is exposed from the hole of the waterproof base, and a conductive gel (103) arranged on the contacting surface to come into contact with the detection electrode.
    Type: Grant
    Filed: August 4, 2006
    Date of Patent: June 7, 2011
    Assignee: Fukuda Denshi Co., Ltd.
    Inventor: Naoki Nishimura
  • Patent number: 7566307
    Abstract: A blood pressure monitoring apparatus which continuously estimates and monitors the blood pressure by using the pulse wave propagation time can accurately estimate the blood pressure. While an estimated blood pressure is continuously calculated by using the pulse wave propagation time, the correlation between the pulse wave propagation time and the interval between feature points contained in two consecutive heart beat waveforms of an electrocardiogram is monitored. If the correlation is reversed, the blood pressure is actually measured, and the estimated blood pressure is corrected on the basis of the difference between the estimated blood pressure and actually measured blood pressure.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: July 28, 2009
    Assignee: Fukuda Denshi Co., Ltd.
    Inventors: Hidekatsu Inukai, Toru Oka
  • Patent number: 7520859
    Abstract: A blood pressure measuring apparatus to measure blood pressure based on a change in a pressure by a cuff mounted to a subject comprises: cuff pressure controlling means for deflating the cuff after avascularization by the cuff at a body part around which the cuff is placed; detecting means for detecting the change in a pressure by the cuff and outputting the detection as an electrical signal; extracting means for extracting a pulse wave signal from the electrical signal; and calculating means for calculating a systolic blood pressure value and a diastolic blood pressure value based on a relation between a change rate of an index value which is calculated by multiplying a maximum amplitude of each pulse of the pulse wave signal by the cuff pressure corresponding to the maximum amplitude and a predetermined value. The blood pressure measuring apparatus achieves a high-speed measurement while suppressing the reduction of accuracy.
    Type: Grant
    Filed: March 13, 2006
    Date of Patent: April 21, 2009
    Assignee: Fukuda Denshi Co., Ltd.
    Inventor: Tomohiro Nunome
  • Patent number: 7452332
    Abstract: A report on changes over time is generated and outputted that presents, in addition to the changes of blood vessel elasticity indexes, the changes over time of other measured values of bioinformation related to vascular disease such as a blood pressure value in time series. This report is useful for a diagnosis with respect to vascular disease from various aspects.
    Type: Grant
    Filed: June 16, 2006
    Date of Patent: November 18, 2008
    Assignee: Fukuda Denshi Co., Ltd.
    Inventors: Tsuneo Suzuki, Norio Sato
  • Patent number: 7393327
    Abstract: In blood pressure monitoring apparatus which continuously estimates and monitors blood pressure by using the pulse wave propagation time, blood pressure fluctuation can be accurately estimated. If both blood pressure estimated from the pulse wave propagation time and a waveform parameter obtained from the accelerated pulse wave have abnormal values, it is determined that the blood pressure is truly fluctuating, and blood pressure measurement by another method, e.g., blood pressure measurement using a cuff is performed.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: July 1, 2008
    Assignee: Fukuda Denshi Co., Ltd.
    Inventors: Hidekatsu Inukai, Toru Oka
  • Patent number: 7390300
    Abstract: A pulse wave is detected in a predetermined location of a living body, and the progressive wave component and reflected wave component are extracted from the pulse wave. The pulse wave propagation time is calculated from the progressive wave component and reflected wave component, and blood pressure is calculated on the basis of this pulse wave propagation time. The use of this method provides blood pressure measuring apparatus capable of continuously measuring blood pressure with a simple method.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: June 24, 2008
    Assignee: Fukuda Denshi Co., Ltd.
    Inventors: Hidekatsu Inukai, Toru Oka
  • Publication number: 20060224068
    Abstract: A blood pressure measuring apparatus to measure blood pressure based on a change in a pressure by a cuff mounted to a subject comprises: cuff pressure controlling means for deflating the cuff after avascularization by the cuff at a body part around which the cuff is placed; detecting means for detecting the change in a pressure by the cuff and outputting the detection as an electrical signal; extracting means for extracting a pulse wave signal from the electrical signal; and calculating means for calculating a systolic blood pressure value and a diastolic blood pressure value based on a relation between a change rate of an index value which is calculated by multiplying a maximum amplitude of each pulse of the pulse wave signal by the cuff pressure corresponding to the maximum amplitude and a predetermined value. The blood pressure measuring apparatus achieves a high speed measurement while suppressing the reduction of accuracy.
    Type: Application
    Filed: March 13, 2006
    Publication date: October 5, 2006
    Applicant: FUKUDA DENSHI CO., LTD.
    Inventor: Tomohiro Nunome
  • Patent number: 6999813
    Abstract: To disclose a biomedical signal processor with a simple configuration and a minimum space capable of confirming an operating condition and a signal collection state of the biomedical signal processor such as an electrocardiograph. As an example of the biomedical signal processor according to the present invention, a Holter electrocardiograph supplies biomedical signals to a light-emitting element (LED) 30 and applies a bias supply voltage from a power supply section 80 to the LED 30. By setting a bias voltage to a voltage so that a level of a minimum supply voltage to the LED 30 becomes a positive potential when electrocardiogram signals are input to an input amplification section 10, the LED 30 turns OFF when power is turned OFF, becomes half-lit when power is turned ON and its luminescence intensity is variable when signals are collected normally, making it possible to easily check a state of the apparatus.
    Type: Grant
    Filed: October 25, 2002
    Date of Patent: February 14, 2006
    Assignee: Fukuda Denshi Co., Ltd.
    Inventor: Yoshiya Muraki
  • Patent number: 6791026
    Abstract: A biomedical signal cable that is applicable to also serving as an antenna for radio transmissions. The biomedical signal cable is a connects a medical telemetery having a radio transmission function and a biomedical electrode and places a selective high-resistance body with respect to a radio signal at a position away from a base of the signal cable by approximately a ¼ wavelength of the transmission frequency of the medical telemetery.
    Type: Grant
    Filed: October 25, 2002
    Date of Patent: September 14, 2004
    Assignee: Fukuda Denshi Co., Ltd.
    Inventor: Yoshiya Muraki
  • Publication number: 20040106854
    Abstract: The present invention provides a telemeter for medical care to determine position information of a patient in a narrow range in the following manner. Position information transmitters using electromagnetic induction radio are arranged at necessary positions in a medical facility, and a receiver for receiving position information is built in the telemeter for medical care carried by each of patients. The position information is superimposed on a signal transmitted by the telemeter transmitter for medical care and a receiving device receives the position information together with the living body information of the patient. Further, the past position information of the patient is stored and compared with the present position information of the patient.
    Type: Application
    Filed: November 29, 2002
    Publication date: June 3, 2004
    Applicant: Fukuda Denshi Co., Ltd.
    Inventor: Yoshiya Muraki
  • Publication number: 20040079542
    Abstract: To disclose a biomedical signal cable ideally applicable to also serving as an antenna for radio transmissions. The biomedical signal cable according to the present invention is a biomedical signal cable that connects a medical telemetery having a radio transmission function and a biomedical electrode and places a selective high-resistance body with respect to a radio signal, for example, a ferrite core 120 at a position away from a base 110 of a signal cable 100 by approximately a ¼ wavelength of the transmission frequency of the medical telemetery. In this way, the present invention makes a high frequency signal produce resonance, thereby improving an antenna efficiency of the biomedical signal cable.
    Type: Application
    Filed: October 25, 2002
    Publication date: April 29, 2004
    Applicant: Fukuda Denshi Co., Ltd
    Inventor: Yoshiya Muraki
  • Publication number: 20040082869
    Abstract: To disclose a biomedical signal processor with a simple configuration and a minimum space capable of confirming an operating condition and a signal collection state of the biomedical signal processor such as an electrocardiograph. As an example of the biomedical signal processor according to the present invention, a Holter electrocardiograph supplies biomedical signals to a light-emitting element (LED) 30 and applies a bias supply voltage from a power supply section 80 to the LED 30. By setting a bias voltage to a voltage so that a level of a minimum supply voltage to the LED 30 becomes a positive potential when electrocardiogram signals are input to an input amplification section 10, the LED 30 turns OFF when power is turned OFF, becomes half-lit when power is turned ON and its luminescence intensity is variable when signals are collected normally, making it possible to easily check a state of the apparatus.
    Type: Application
    Filed: October 25, 2002
    Publication date: April 29, 2004
    Applicant: Fukuda Denshi Co., Ltd.
    Inventor: Yoshiya Muraki
  • Patent number: 5311658
    Abstract: An apparatus for producing a living body leading electrode includes a first substrate 10 to which first boards 1 are fixed in a plurality of rows. A plurality of skin adhering members 101 with openings 102 are bonded to the first boards. A second substrate 20 is provided to which second boards 2 are fixed in a plurality of rows corresponding to the first boards 1. A plurality of electrode elements 103 are placed on the second boards 2. A pouring means 30 is provided for pouring a solution of electrolyte 100 into the upper portions of the openings 102 formed on the skin adhering members 101. A hardening device 40 for hardening the poured solution of electrolyte 100, thereby fixing the side faces 100A of the electrolyte 100 to the side walls 102A of the openings 102, which first substrate 10 and second substrate 20 may be superposed on each other.
    Type: Grant
    Filed: August 21, 1992
    Date of Patent: May 17, 1994
    Assignee: Fukuda Denshi Co., Ltd.
    Inventor: Chuji Shimizu
  • Patent number: 5239375
    Abstract: A real-time endoscopic image processing system for removing a net pattern from an image has an image processing section (1000) which includes a first controlling circuit (400) for receiving a video signal (S2) from one of a video signal S1 output from a television camera (14) and a VTR, or the like. A horizontal sample-hold circuit (500) generates a horizontal peak sample-hold signal (S5) by continuously sampling and holding the peak value of a sinusoidal video signal voltage from the video signal output (S2) which corresponds to the bright and dark portions of an image. A second controlling circuit (600) delays the horizontal peak sample-hold signal (S5) and compares a delay signal (S5D) with the horizontal peak sample-hold signal (S5) to detect the peak value of the original voltage which varies in a sinusoidal form with respect to the vertical scanning direction, and outputting a vertical peak sampling controlling signal (S6).
    Type: Grant
    Filed: February 5, 1992
    Date of Patent: August 24, 1993
    Assignee: Fukuda Denshi Co., Ltd.
    Inventors: Tamon Mizoguchi, Makoto Magara, Toshihiko Yamagata, Shinichi Kawamura, Masami Uchibori, Shigekazu Nagashima, Kiyoshi Takeuchi
  • Patent number: 5230634
    Abstract: A protector for being mounted on a leading cord chip, and which is fixable to the top portion 1A of a leading cord fixing portion 1, includes an insulated cover portion which is longer than a conductive plug 2 projecting from the top portion 1A. The insulated cover portion has a slit through which only a connecting portion of an electrode can pass. The connecting portion of the electrode is connected to the plug 2.
    Type: Grant
    Filed: November 26, 1991
    Date of Patent: July 27, 1993
    Assignee: Fukuda Denshi Co., Ltd.
    Inventors: Kimio Yamaguchi, Takeshi Yushiya, Koichi Mizoi, Chuji Shimizu