Patents by Inventor Chikao Harada

Chikao Harada 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: 20190269381
    Abstract: An ultrasonic cross-sectional image measuring device has: a living body compressing device including an annular compression band wrapped around a portion of the living body, an ultrasonic transmission plate material allowing transmission of ultrasonic waves, disposed on a portion of the compression band, and brought into close contact with the portion of the living body, and an actuator adjusting a tension of the compression band to change a compression pressure of the ultrasonic transmission plate material to the living body; a container including an opening closed by the ultrasonic transmission plate material and filled with a liquid; an ultrasonic probe housed in the container and transmitting and receiving ultrasonic waves through the ultrasonic transmission plate material to and from the portion of the living body; and a control device generating an ultrasonic cross-sectional image based on an ultrasonic signal received by the ultrasonic probe.
    Type: Application
    Filed: May 22, 2017
    Publication date: September 5, 2019
    Applicant: UNEX CORPORATION
    Inventors: Hiroshi MASUDA, Chikao HARADA, Hiromasa TSUKAHARA, Hidenori SUZUKI
  • Patent number: 9545241
    Abstract: It is provided a blood vessel function inspecting apparatus including: a blood vessel diameter measuring portion configured to measure a diameter of a blood vessel; a blood vessel wall thickness measuring portion configured to measure a wall thickness of the blood vessel; and a blood vessel function index value calculating portion configured to calculate a function index value for diagnosing the blood vessel of its function, after releasing of the blood vessel from blood flow obstruction, by dividing an amount of dilatation of said diameter of the blood vessel continuously measured by said blood vessel diameter measuring portion, by the wall thickness measured by said blood vessel wall thickness measuring portion.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: January 17, 2017
    Assignee: UNEX CORPORATION
    Inventors: Hiroshi Masuda, Chikao Harada, Hidenori Suzuki
  • Patent number: 9089306
    Abstract: A blood vessel ultrasonic image measuring method capable of facilitating the positioning of an ultrasonic probe and acquiring sufficient positioning accuracy. Because of inclusion of an around-X-axis positioning step of causing a multiaxis driving device to position an ultrasonic probe such that distances from respective ultrasonic array probes to the center of a blood vessel are equalized, and an X-axis direction positioning step and an around-Z-axis positioning step of causing the multiaxis driving device to position the ultrasonic probe such that the image of the blood vessel is positioned at the center portion in the width direction of the first short axis image display area and the second short axis image display area, the positioning may be performed by using the positions in the longitudinal direction of the ultrasonic array probes relative to the blood vessel or the distances of the ultrasonic array probes to the blood vessel.
    Type: Grant
    Filed: September 16, 2008
    Date of Patent: July 28, 2015
    Assignee: UNEX CORPORATION
    Inventors: Chikao Harada, Hiroshi Masuda, Hidenori Suzuki
  • Patent number: 8939908
    Abstract: An ultrasonic blood vessel inspecting apparatus provided with a longitudinal cross sectional blood vessel image generating portion configured to generate a longitudinal cross sectional image of a blood vessel located below a skin of a live body, on the basis of reflected wave signals of an ultrasonic wave by using an ultrasonic probe placed on the skin of said live body, includes: an index value calculating portion configured to calculate an index value indicative of a degree of clarity of an image which represents an intima-media complex of said blood vessel and which exists within said longitudinal cross sectional image of the blood vessel.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: January 27, 2015
    Assignee: Unex Corporation
    Inventors: Hidenori Suzuki, Katsushi Iikubo, Chikao Harada, Hiroshi Masuda
  • Publication number: 20140364729
    Abstract: It is provided a blood vessel function inspecting apparatus including: a blood vessel diameter measuring portion configured to measure a diameter of a blood vessel; a blood vessel wall thickness measuring portion configured to measure a wall thickness of the blood vessel; and a blood vessel function index value calculating portion configured to calculate a function index value for diagnosing the blood vessel of its function, after releasing of the blood vessel from blood flow obstruction, by dividing an amount of dilatation of said diameter of the blood vessel continuously measured by said blood vessel diameter measuring portion, by the wall thickness measured by said blood vessel wall thickness measuring portion.
    Type: Application
    Filed: August 25, 2014
    Publication date: December 11, 2014
    Inventors: Hiroshi MASUDA, Chikao HARADA, Hidenori SUZUKI
  • Patent number: 8845542
    Abstract: It is provided a blood vessel function inspecting apparatus including: a blood vessel diameter measuring portion configured to measure a diameter of a blood vessel; a blood vessel wall thickness measuring portion configured to measure a wall thickness of the blood vessel; and a blood vessel function index value calculating portion configured to calculate a function index value for diagnosing the blood vessel of its function, after releasing of the blood vessel from blood flow obstruction, by dividing an amount of dilatation of said diameter of the blood vessel continuously measured by said blood vessel diameter measuring portion, by the wall thickness measured by said blood vessel wall thickness measuring portion.
    Type: Grant
    Filed: September 9, 2009
    Date of Patent: September 30, 2014
    Assignee: Unex Corporation
    Inventors: Hiroshi Masuda, Chikao Harada, Hidenori Suzuki
  • Publication number: 20120165686
    Abstract: It is provided a blood vessel function inspecting apparatus including: a blood vessel diameter measuring portion configured to measure a diameter of a blood vessel; a blood vessel wall thickness measuring portion configured to measure a wall thickness of the blood vessel; and a blood vessel function index value calculating portion configured to calculate a function index value for diagnosing the blood vessel of its function, after releasing of the blood vessel from blood flow obstruction, by dividing an amount of dilatation of said diameter of the blood vessel continuously measured by said blood vessel diameter measuring portion, by the wall thickness measured by said blood vessel wall thickness measuring portion.
    Type: Application
    Filed: September 9, 2009
    Publication date: June 28, 2012
    Applicant: UNEX CORPORATION
    Inventors: Hiroshi Masuda, Chikao Harada, Hidenori Suzuki
  • Publication number: 20120116227
    Abstract: An ultrasonic blood vessel inspecting apparatus provided with a longitudinal cross sectional blood vessel image generating portion configured to generate a longitudinal cross sectional image of a blood vessel located below a skin of a live body, on the basis of reflected wave signals of an ultrasonic wave by using an ultrasonic probe placed on the skin of said live body, includes: an index value calculating portion configured to calculate an index value indicative of a degree of clarity of an image which represents an intima-media complex of said blood vessel and which exists within said longitudinal cross sectional image of the blood vessel.
    Type: Application
    Filed: July 16, 2009
    Publication date: May 10, 2012
    Applicant: UNEX CORPORATION
    Inventors: Hidenori Suzuki, Katsushi Iikubo, Chikao Harada, Hiroshi Masuda
  • Patent number: 7862512
    Abstract: An apparatus for measuring a short-axis image of a blood vessel under a skin of a living being, the apparatus including an ultrasonic probe including an ultrasonic array which has a plurality of ultrasonic transducers arranged in one direction in an emission surface and which emits, from the emission surface, an ultrasonic beam toward the blood vessel, the ultrasonic probe additionally including a main frame which is adapted to be placed on the skin of the living being, an x-axis supporting device which is supported by the main frame and which supports the ultrasonic array such that the ultrasonic array is rotatable about an x axis parallel to the direction of arrangement of the ultrasonic transducers in the emission surface, and an x-axis control device which controls a posture of the ultrasonic array supported by the x-axis supporting device such that in a y-z plane, the emission surface of the ultrasonic array is parallel to the blood vessel.
    Type: Grant
    Filed: August 22, 2006
    Date of Patent: January 4, 2011
    Assignee: Unex Corporation
    Inventors: Katsushi Iikubo, Hidehito Sasaki, Hidenori Suzuki, Hiromasa Tsukahara, Chikao Harada, Hitoshi Hirano, Hiroshi Masuda
  • Publication number: 20100210946
    Abstract: A blood vessel ultrasonic image measuring method capable of facilitating the positioning of an ultrasonic probe and acquiring sufficient positioning accuracy is provided.
    Type: Application
    Filed: September 16, 2008
    Publication date: August 19, 2010
    Applicant: Unex Corporation
    Inventors: Chikao Harada, Hiroshi Masuda, Hidenori Suzuki
  • Publication number: 20090036776
    Abstract: An apparatus for measuring an inner diameter of a tubular body present under a skin of a living being, by emitting an ultrasonic wave from an ultrasonic probe placed on the skin, the apparatus including a reflection-signal detecting portion which detects a reflection signal that is reflected from the tubular body when the ultrasonic wave is emitted from the ultrasonic probe; and an inner-diameter calculating portion which calculates the inner diameter of the tubular body, based on an interval between two groups of reflection waves which are contained by the detected reflection signal and which are reflected from two diametrically opposed portions of a wall of the tubular body, respectively.
    Type: Application
    Filed: January 18, 2007
    Publication date: February 5, 2009
    Applicant: UNEX CORPORATION
    Inventors: Hiroshi Masuda, Hitoshi Hirano, Hidenori Suzuki, Chikao Harada
  • Patent number: 7412776
    Abstract: An apparatus for holding a sensor such that the sensor touches an object at an arbitrary position in a three-dimensional space, the apparatus including a base member; a rotatable member which is rotatable relative to the base member about a vertical axis line; a first link device including a first stationary link, a first movable link, and two first pivotable links which are pivotably connected to the first stationary link and the first movable link, such that the first stationary link, the first movable link, and the two first pivotable links cooperate with each other to define a quadrilateral, wherein the first stationary link is fixed to the rotatable member such that the first movable link is movable in a plane containing the axis line; a second link device including two second pivotable links, and a second stationary link and a second movable link which are pivotably connected to the two second pivotable links, such that the two second pivotable links, the second stationary link, and the second movable l
    Type: Grant
    Filed: August 22, 2006
    Date of Patent: August 19, 2008
    Assignee: Unex Corporation
    Inventors: Katsushi Iikubo, Hidehito Sasaki, Hidenori Suzuki, Hiromasa Tsukahara, Chikao Harada, Hitoshi Hirano, Hiroshi Masuda
  • Publication number: 20070060818
    Abstract: An apparatus for inspecting a function of an endothelium of a blood vessel of a living being, by stopping, using an inflatable cuff wound around a forearm of the living being, a flow of blood in a blood vessel of the forearm, subsequently ending the stopping of the flow of blood, and causing an ultrasonic probe placed on a skin of an upper arm of the living being to emit, from an emission surface thereof, an ultrasonic wave toward a blood vessel under the skin, the apparatus including an elbow-portion support member which supports an elbow portion of the living being; and a hand-dorsal-portion support member which supports a dorsal portion of a hand of the living being and which cooperates with the elbow-portion support member to keep, in a space, the inflatable cuff wound around the forearm of the living being.
    Type: Application
    Filed: August 21, 2006
    Publication date: March 15, 2007
    Applicant: UNEX CORPORATION
    Inventors: Katsushi Iikubo, Hidehito Sasaki, Hidenori Suzuki, Hiromasa Tsukahara, Chikao Harada, Hitoshi Hirano, Hiroshi Masuda
  • Publication number: 20070055152
    Abstract: An apparatus for measuring a short-axis image of a blood vessel under a skin of a living being, the apparatus including an ultrasonic probe including an ultrasonic array which has a plurality of ultrasonic transducers arranged in one direction in an emission surface and which emits, from the emission surface, an ultrasonic beam toward the blood vessel, the ultrasonic probe additionally including a main frame which is adapted to be placed on the skin of the living being, an x-axis supporting device which is supported by the main frame and which supports the ultrasonic array such that the ultrasonic array is rotatable about an x axis parallel to the direction of arrangement of the ultrasonic transducers in the emission surface, and an x-axis control device which controls a posture of the ultrasonic array supported by the x-axis supporting device such that in a y-z plane, the emission surface of the ultrasonic array is parallel to the blood vessel.
    Type: Application
    Filed: August 22, 2006
    Publication date: March 8, 2007
    Applicant: UNEX CORPORATION
    Inventors: Katsushi Ukubo, Hidehito Sasaki, Hidenori Suzuki, Hiromasa Tsukahara, Chikao Harada, Hitoshi Hirano, Hiroshi Masuda
  • Publication number: 20070044336
    Abstract: An apparatus for holding a sensor such that the sensor touches an object at an arbitrary position in a three-dimensional space, the apparatus including a base member; a rotatable member which is rotatable relative to the base member about a vertical axis line; a first link device including a first stationary link, a first movable link, and two first pivotable links which are pivotably connected to the first stationary link and the first movable link, such that the first stationary link, the first movable link, and the two first pivotable links cooperate with each other to define a quadrilateral, wherein the first stationary link is fixed to the rotatable member such that the first movable link is movable in a plane containing the axis line; a second link device including two second pivotable links, and a second stationary link and a second movable link which are pivotably connected to the two second pivotable links, such that the two second pivotable links, the second stationary link, and the second movable l
    Type: Application
    Filed: August 22, 2006
    Publication date: March 1, 2007
    Applicant: UNEX CORPORATION
    Inventors: Katsushi IIkubo, Hidehito Sasaki, Hidenori Suzuki, Hiromasa Tsukahara, Chikao Harada, Hitoshi Hirano, Hiroshi Masuda
  • Patent number: 6748262
    Abstract: The gate means 73 extracts the partial impedance pulse wave SMIMP(P) from the thorax impedance pulse wave SMIMP detected by the thorax impedance pulse wave detector 64. This is done over an intake period defined as a period starting from a first time T1 after the time when the R wave of the induced electro-cardiac wave is detected to the time when a rising edge of the photoelectric pulse wave SM2 is detected. Then, the heartbeat synchronous information determining means 74 selects a rising edge of the partial impedance pulse wave SMIMP(P) that periodically appears as heartbeat synchronous information IH. Thus, it is possible to accurately determine the heartbeat synchronous information IH. Additionally, since the photoelectric pulse wave SM2 that is detected by the photoelectric pulse wave sensor 40 is largely free of noise it is possible to accurately determine the end of the period for reading the thorax impedance pulse wave SMIMP.
    Type: Grant
    Filed: August 9, 2001
    Date of Patent: June 8, 2004
    Assignee: Colin Medical Technology Corporation
    Inventors: Chikao Harada, Keizoh Kawaguchi, Kiyoyuki Narimatsu, Akihiro Yokozeki
  • Patent number: 6702768
    Abstract: An apparatus for bending and stretching a foot of a living person by pressing at least an arch of a sole of the foot and stopping the pressing of the arch.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: March 9, 2004
    Assignee: Colin Corporation
    Inventors: Nobue Mano, Chikao Harada
  • Publication number: 20030032887
    Abstract: The gate means 73 extracts the partial impedance pulse wave SMIMP(P) from the thorax impedance pulse wave SMIMP detected by the thorax impedance pulse wave detector 64. This is done over an intake period defined as a period starting from a first time T1 after the time when the R wave of the induced electro-cardiac wave is detected to the time when a rising edge of the photoelectric pulse wave SM2 is detected. Then, the heartbeat synchronous information determining means 74 selects a rising edge of the partial impedance pulse wave SMIMP(P) that periodically appears as heartbeat synchronous information IH. Thus, it is possible to accurately determine the heartbeat synchronous information IH. Additionally, since the photoelectric pulse wave SM2 that is detected by the photoelectric pulse wave sensor 40 is largely free of noise it is possible to accurately determine the end of the period for reading the thorax impedance pulse wave SMIMP.
    Type: Application
    Filed: August 9, 2001
    Publication date: February 13, 2003
    Applicant: COLIN CORPORATION
    Inventors: Chikao Harada, Keizoh Kawaguchi, Kiyoyuki Narimatsu, Akihiro Yokozeki
  • Patent number: 6475155
    Abstract: An apparatus for obtaining a pulse-wave-propagation-relating information of a living subject, including a bifurcate-portion determining device which determines a bifurcate portion of an artery of the subject that is present under a skin of the subject, a pulse-wave-detect-portion determining device for determining, based on the determined bifurcate portion of the artery, a pulse-wave-detect portion of the artery from which a pulse wave is detected, a reference-point determining device for determining a reference point on the pulse wave detected from the determined pulse-wave-detect portion of the artery, and a pulse-wave-propagation-relating-information obtaining device for obtaining the pulse-wave-propagation-relating information of the subject based on the determined reference point of the pulse wave.
    Type: Grant
    Filed: December 1, 2000
    Date of Patent: November 5, 2002
    Assignee: Colin Corporation
    Inventors: Toshihiko Ogura, Chikao Harada, Takashi Honda, Kiyoyuki Narimatsu
  • Publication number: 20020049397
    Abstract: An apparatus for bending and stretching a foot of a living person by pressing at least an arch of a sole of the foot and stopping the pressing of the arch.
    Type: Application
    Filed: September 28, 2001
    Publication date: April 25, 2002
    Applicant: COLIN CORPORATION
    Inventors: Nobue Mano, Chikao Harada