Patents by Inventor Hiroshi Imai

Hiroshi Imai 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).

  • BLOOD PRESSURE ESTIMATION DEVICE, BLOOD PRESSURE ESTIMATION METHOD, BLOOD PRESSURE MEASUREMENT DEVICE, AND RECORDING MEDIUM
    Publication number: 20170181648
    Abstract: Disclosed are a blood pressure estimation device, etc., that is capable of highly accurate estimation of blood pressure. The blood pressure estimation device (101) has a blood pressure estimation unit (102) that: finds a specific blood pressure related to pulse wave information (2002), by browsing blood pressure information (2001) associating the pulse wave information and blood pressure related to pulse wave signals caused by blood pressure during a specific period and measured, the pulse wave information associating blood pressure during the specific period and the pulse wave signals; and estimates the blood pressure relating to the pulse wave information (2002) on the basis of the found specific blood pressure.
    Type: Application
    Filed: February 13, 2015
    Publication date: June 29, 2017
    Applicant: NEC CORPORATION
    Inventors: Yuji OHNO, Masahiro KUBO, Kimiyasu TAKOH, Katsumi ABE, Ersin ALTINTAS, Hiroshi IMAI, Osamu TOCHIKUBO
  • BLOOD PRESSURE ESTIMATION DEVICE, BLOOD PRESSURE ESTIMATION METHOD, BLOOD PRESSURE MEASUREMENT DEVICE, AND RECORDING MEDIUM
    Publication number: 20170172429
    Abstract: Disclosed are a blood pressure estimation device and the like which make it possible to estimate blood pressure with a high degree of accuracy. A blood pressure estimation device (101) has: a pulse wave calculation unit (102) for, on the basis of a pressure signal in a specific period and a pulse wave signal (2001) measured on the basis of the pressure of the pressure signal in the specific period, calculating a plurality of times at which a pulse signal satisfies prescribed conditions, a period representing the difference between the times, and a pressure value of the pressure signal during the period, and also calculating pulse wave information associating the period and the pressure value; and a blood pressure estimation unit (103) for estimating the blood pressure of the pulse wave signal (2001) on the basis of the pulse wave information.
    Type: Application
    Filed: February 13, 2015
    Publication date: June 22, 2017
    Applicant: NEC CORPORATION
    Inventors: Kimiyasu TAKOH, Katsumi ABE, Yuji OHNO, Masahiro KUBO, Hiroshi IMAI, Ersin ALTINTAS, Osamu TOCHIKUBO
  • TUBE PUMP
    Publication number: 20170096995
    Abstract: There is provided a tube pump including: a first roller unit and a second roller unit that rotate around an axis while being in contact with a tube; a drive shaft coupled to the first roller unit; a drive cylinder arranged on an outer peripheral side of the drive shaft and coupled to the second roller unit; a first drive unit that rotates a first drive shaft around a first axis; a second drive unit that rotates a second drive shaft around a second axis; and a transmission mechanism that transmits a drive force of the second drive shaft to an outer peripheral surface of the drive cylinder, in which the first drive unit and the second drive unit are arranged so that a first arrangement position of the first drive unit and a second arrangement position of the second drive unit in a first axis direction overlap with each other.
    Type: Application
    Filed: September 28, 2016
    Publication date: April 6, 2017
    Applicant: Surpass Industry Co., Ltd.
    Inventors: Hiroshi IMAI, Kazuki HIRAI
  • NON-CONTACT VOLTAGE MEASUREMENT DEVICE
    Publication number: 20170067939
    Abstract: Provided is a non-contact voltage measuring device capable of measuring, with given accuracy, measurement target voltages applied to various conducting wires having respective different shapes. An inner electrode which is deformable depending on a shape of a wire “w” is electrically connected, via a connecting section, to an outer electrode fixed to an electric field shield.
    Type: Application
    Filed: February 4, 2015
    Publication date: March 9, 2017
    Applicant: OMRON CORPORATION
    Inventors: Hiroshi IMAI, Keiki MATSUURA, Hiroyuki TOKUSAKI, Mao OGIMOTO, Goro KAWAKAMI, Kohei TOMITA, Atsuhiro OKAMURA
  • NON-CONTACT VOLTAGE MEASUREMENT DEVICE
    Publication number: 20170059619
    Abstract: There is provided a non-contact voltage measurement device which can precisely measure a measurement target voltage by suppressing a flow of a leakage current via a parasitic capacitance produced between an electric field shield and an electric circuit. A drive voltage applying unit applies a voltage generated from an output voltage of a low impedance unit of the electric circuit and equal to an input voltage of a high impedance unit, to a first electric field shield coated on the high impedance unit.
    Type: Application
    Filed: February 4, 2015
    Publication date: March 2, 2017
    Applicant: OMRON Corporation
    Inventors: Hiroshi IMAI, Keiki MATSUURA, Hiroyuki TOKUSAKI, Mao OGIMOTO
  • INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD AND MEDIUM
    Publication number: 20170038307
    Abstract: For detecting a crack formed on a structure surface without erroneously, an information processing device that detects a crack on a structure, includes a change detection unit that detects a change in positions of at least two measurement points on the structure; and a crack detection unit that detects a crack based on the change in the positions of the measurement points detected by the change detection unit.
    Type: Application
    Filed: February 19, 2015
    Publication date: February 9, 2017
    Inventors: Masahiko OHTA, Jun TAKADA, Hiroshi IMAI, Atsushi HATABU, Gaku NAKANO, Zhen WANG, Yuzo SENDA
  • BLOOD PRESSURE ESTIMATION DEVICE, BLOOD PRESSURE ESTIMATION METHOD, BLOOD PRESSURE MEASUREMENT DEVICE, AND RECORDING MEDIUM
    Publication number: 20160360982
    Abstract: Provided are a blood pressure estimation device, and the like, the device being capable of accurately estimating blood pressure. The blood pressure estimation device includes a blood pressure estimation unit which estimates a blood pressure on the basis of a pressure in a specific time period and differences between a plurality of pulse wave signals measured in the specific time period due to the pressure.
    Type: Application
    Filed: February 13, 2015
    Publication date: December 15, 2016
    Applicant: NEC CORPORATION
    Inventors: Yuji OHNO, Masahiro KUBO, Kimiyasu TAKOH, Katsumi ABE, Ersin ALTINTAS, Hiroshi IMAI, Osamu TOCHIKUBO
  • Flow direction detection device, flow direction detection method, and flow direction detection program
    Patent number: 9506956
    Abstract: A detection apparatus that detects a state of power has a first current transformer that measures a first current on a side of a first power line with respect to a connecting point between the first power line extending from a commercial power supply and a second power line extending from a power generation means that supplies power having the same frequency as the commercial power supply, a second current transformer that measures a second current on a side of the second power line with respect to the connecting point, a first current direction detector that detects a direction of the first current, a second current direction detector that detects a direction of the second current, and an exclusive OR calculator that calculates an exclusive OR between a detected value of the direction of the first current and a detected value of the direction of the second current.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: November 29, 2016
    Assignee: OMRON Corporation
    Inventors: Hiroshi Imai, Ryota Akai, Chen Chen, Yasukazu Ohno
  • Detection device and method, and program
    Patent number: 9482701
    Abstract: A detection device for detecting a state of electric power has a first current transformer that measures a first current on a first power line side of a connecting point between a first power line derived from a commercial power supply and a second power line derived from a power generation device which supplies electric power equal in frequency to the commercial power supply, a second current transformer that measures a second current on a second power line side of the connecting point, a first calculation unit that calculates a decision value based on a product of a measured value of the first current and a measured value of the second current, and a detection unit that detects a power flow direction of electric power of the first power line based on the decision value.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: November 1, 2016
    Assignee: OMRON Corporation
    Inventors: Hiroshi Imai, Yasuhiro Kawabata, Hiroshi Sameshima, Shuichi Misumi
  • Motor drive apparatus
    Patent number: 9455610
    Abstract: A motor drive apparatus includes a rear end frame between a motor case and a control unit case. A shaft of a motor unit is supported rotatably by a bearing fixed to the rear end frame. A first socket-spigot fitting surface formed on the rear end frame is fitted with a second socket-spigot fitting surface formed on a heat sink. A rotation angle sensor mounted on a control unit substrate attached to the heat sink is provided on the rotation axis of the shaft. The rotation angle sensor can thus accurately detect the magnetic field of a magnet provided at the end of the shaft.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: September 27, 2016
    Assignee: DENSO CORPORATION
    Inventors: Hiroki Tomizawa, Jirou Hayashi, Hiroshi Imai
  • Rotational position sensing apparatus
    Patent number: 9360295
    Abstract: A rotational position sensing apparatus includes a rotational position sensing magnet and a fixing member. The fixing member is made of a non-magnetic material and is fixed to a rotatable shaft of a rotor. The fixing member includes a plurality of projections, which radially inwardly project and are arranged one after another in a circumferential direction at an inner peripheral surface of a first peripheral wall portion within a space, which is defined by the first peripheral wall portion and a bottom wall portion and holds the rotational position sensing magnet.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: June 7, 2016
    Assignees: DENSO CORPORATION, ASMO CO., LTD.
    Inventors: Makoto Taniguchi, Takeshi Wakana, Hiroshi Imai, Masahiro Goto
  • Rotating electric machine
    Patent number: 9337698
    Abstract: A rotating electric machine has a first frame and a second frame disposed at one axial end of a casing. The first and second frames have a first flange and a second flange, respectively, that protrude outwardly from the casing. The first and second flanges are fastened together by a through bolt. The first flange includes a recessed portion having a first curved portion, a second curved portion, and a third curved portion. A curvature radius of the third curved portion is greater than a curvature radius of the first curved portion and a curvature radius of the second curved portion such that a concentration of stress within the third curved portion that is caused by a fastening force of the through bolt may be reduced.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: May 10, 2016
    Assignee: DENSO CORPORATION
    Inventors: Makoto Taniguchi, Hiroshi Imai
  • Sensor device
    Patent number: 9331479
    Abstract: A sensor device has a sensor unit, a control unit; and multiple power supply paths from a power supply to the sensor unit and the control unit. The multiple power supply paths are configured to be switched in accordance with an operation status of the sensor unit. The sensor device further has a wireless communication device for transmitting a measurement result of the sensor unit. The multiple power supply paths are provided to supply power from the power supply to the wireless communication device. The multiple power supply paths are configured to be switched in accordance with an operation status of the wireless communication device.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: May 3, 2016
    Assignee: OMRON Corporation
    Inventors: Hiroshi Imai, Yasuhiro Kawabata, Hiroshi Sameshima
  • SENSOR DEVICE AND MONITORING SYSTEM
    Publication number: 20160056718
    Abstract: A sensor device includes a first sensor unit, a control IC configured to switch a power supply route, a power supply, a DC converter, and a regulator configured to regulate the voltage. A power supply route A and a power supply route B is provided as a power supply route from the power supply to the sensor unit and the control IC. In the power supply route A, the sensor unit is not electrically conducted to the power supply, and the control IC is directly connected to the power supply. In the power supply route B, the power supply, the DC converter, and the regulator are connected in series, output of the regulator is supplied to the sensor unit, and output of the DC converter is supplied to the control IC. The control IC switches between the power supply route A and the power supply route B according to an operating state of the sensor unit.
    Type: Application
    Filed: February 18, 2014
    Publication date: February 25, 2016
    Applicant: OMRON Corporation
    Inventors: Teruki Hasegawa, Hiroshi Imai, Hiroshi Sameshima, Tomohiro Ozaki
  • MEASURING APPARATUS AND MEASURING METHOD
    Publication number: 20160025778
    Abstract: A measuring apparatus has a physical amount transformer that transforms a physical amount into a current, a measuring circuit that measures an output current of the physical amount transformer, a power supply circuit that inputs an output of the measuring circuit, a circuit switching unit that switches between a first state and a second state, the first state constituting a circuit inputting the output of the measuring circuit into the power supply circuit, the second state constituting a circuit directly inputting the output of the measuring circuit into the physical amount transformer, and a switching controller driven by the power supply circuit to control the circuit switching unit.
    Type: Application
    Filed: January 22, 2014
    Publication date: January 28, 2016
    Applicant: OMRON Corporation
    Inventors: Hiroyuki Tokusaki, Hiroshi Imai, Yasukazu Ohno, Keiki Matsuura
  • MEASUREMENT DEVICE AND MOUNTING UNIT
    Publication number: 20160018448
    Abstract: A measurement device has a sensor that generates current by electromagnetic coupling to a power line, a measurement circuit that measures one of voltage and power, the voltage and the power being obtained by the current generated in the sensor according to voltage at the power line, a conductive member electrically connected to a signal ground line of the measurement circuit, and an insulating member that brings the conductive member close to an external conductor and to insulates the conductive member from the external conductor.
    Type: Application
    Filed: January 22, 2014
    Publication date: January 21, 2016
    Applicant: OMRON Corporation
    Inventors: Keiki Matsuura, Hiroshi Imai, Hiroyuki Tokusaki, Yasuhiro Kawabata, Goro Kawakami, Atsuhiro Okamura
  • Image display device
    Patent number: 9230462
    Abstract: To provide an image display device in which reflection of an image on one display surface onto another display surface is suppressed. In an image display device where an image is displayed on a screen combining the display surfaces of two or more image display elements, a polarizing plate is arranged on the display surface on conditions that extinction takes place between the display surfaces of the image display elements. The extinction conditions are set such that the light entering from a display surface to which the polarizing plate is fixed is passed through and the light entering from other than the above display surface is absorbed by intersecting the polarization directions of the polarizing plates perpendicularly.
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: January 5, 2016
    Assignee: NEC CORPORATION
    Inventor: Hiroshi Imai
  • Image projection device, image protection method, distance measuring device and distance measuring method
    Patent number: 9195115
    Abstract: An image projection device includes: a variable-focus lens (2) in which focal length can be changed; scanning means (3) that scans a projection surface (12) by means of a light beam that is condensed by the variable-focus lens (2); distance-measuring means (9) that measures the distance from the variable-focus lens (2) to the projection surface (12); and control means (4) that controls the variable-focus lens (2) such that the focal length of the variable-focus lens (2) is greater than the distance measured by means of the distance-measuring means (9).
    Type: Grant
    Filed: October 4, 2010
    Date of Patent: November 24, 2015
    Assignee: NEC CORPORATION
    Inventor: Hiroshi Imai
  • Scanning-type image display device and its image display method
    Patent number: 9188846
    Abstract: A scanning-type image display devices includes: a light source; a scanning unit that scans light beams emitted from light source to display an image on a projection plane; and a control unit that controls the emission time of the light beam from the light source for each pixel of the image, and that also controls the emission time for each pixel depending on the scanning angle of the scanning unit.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: November 17, 2015
    Assignee: NEC CORPORATION
    Inventor: Hiroshi Imai
  • Driving apparatus
    Patent number: 9180906
    Abstract: It is an object to provide a driving apparatus, which can be easily mounted to vehicles of different models. A circuit unit for controlling an operation of an electric motor is fixed to an axial end of a motor casing. A connector holding unit, which is integrally formed with a heat sink of the circuit unit, is composed of a first and a second arm portions and a connecting portion to form a connector accommodating space in such a radial outside position of the motor casing. The connector accommodating space extends in an axial direction of the motor casing. An inside connector unit is inserted into the connector accommodating space. The inside connector unit has a connector-insert hole into which an outside connector (a vehicle-side connector) is inserted for electrical connection.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: November 10, 2015
    Assignee: DENSO CORPORATION
    Inventors: Yuuji Suga, Hiroshi Imai