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公开(公告)号：US11525812B2
公开(公告)日：2022-12-13
申请号：US16466527
申请日：2017-12-18
Inventor： Osamu Sakaguchi , Isao Ito , Yasuhiro Toriyama , Katsuyuki Matsubayashi
IPC: G01N29/32 , G01N29/024
Abstract: A variable value calculating process includes: measuring a propagation time of the propagation of an ultrasound wave through a measurement sector inside a housing; obtaining a temperature calculated value on the basis of the measured value of the propagation time and a reference distance for the measurement sector; obtaining a temperature measured value by measuring the temperature inside the housing; and obtaining a temperature replacement fluctuation value indicating a difference between the temperature calculated value and the temperature measured value. The variable value calculating process is executed for each of a plurality of temperature conditions under which the temperature of a reference gas inside the housing differs. A temperature compensation table in which the temperature of a gas to be measured is associated with a temperature compensation value relating to the temperature is obtained on the basis of the temperature replacement fluctuation values obtained under each temperature condition.
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公开(公告)号：US20210106311A1
公开(公告)日：2021-04-15
申请号：US16970556
申请日：2019-02-21
Applicant: NISSHINBO HOLDINGS INC. , UEDA JAPAN RADIO CO., LTD.
Inventor： Hideshi TOMITA , Takashi SUZUKI , Shigeo KOBAYASHI
Abstract: The present invention provides a backing material having an excellent attenuation effect of acoustic wave vibration, a method of producing the same, and an acoustic wave probe provided with the backing material. The backing material includes a resin and a magnetized particle, in which the magnetized particle has a magnetic flux density of 1,000 to 15,000 gauss.
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Patent Agency Ranking
公开(公告)号：US20210097971A1
公开(公告)日：2021-04-01
申请号：US16469038
申请日：2018-12-11
Applicant: NISSHINBO HOLDINGS INC. , UEDA JAPAN RADIO CO., LTD.
Inventor： Hideshi TOMITA , Takashi SUZUKI , Shigeo KOBAYASHI
Abstract: The present invention is aimed to provide, as an acoustic lens propagating a sonic wave having a wavelength λ of 100 μm or less, an acoustic lens capable of exhibiting excellent acoustic characteristics in response to the wavelength λ of the sonic wave to be propagated and a production method thereof. The acoustic lens is an acoustic lens 1 to be used for propagating a sonic wave having a wavelength λ of 100 μm or less, wherein the acoustic lens contains a silicone resin and silica particles, an average primary particle diameter of the silica particles is 15 nm or more, and a particle diameter (D90) of 90% of a cumulative percentage in cumulative particle size distribution of the silica particles is less than ⅛ of the wavelength λ of the sonic wave to be propagated.
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公开(公告)号：US20200264136A1
公开(公告)日：2020-08-20
申请号：US16651547
申请日：2018-09-28
Inventor： Kouichi TSUJIYA , Yoshifumi SHINFUKU , Yasuhiro TORIYAMA
IPC: G01N29/024 , G01N29/50 , G01N29/38
Abstract: A processor is configured to include a correlation object determination unit for establishing: a first to-be-correlated signal established on the basis of a first upper-limit rate of change, which is the rate of change of an upper-limit envelope of a direct wave signal, and a first lower-limit rate of change, which is the rate of change of a lower-limit envelope of the direct wave signal; and a second to-be-correlated signal established on the basis of a second upper-limit rate of change, which is the rate of change of an upper-limit envelope of a round-trip-delayed wave signal, and a second lower-limit rate of change, which is the rate of change of a lower-limit envelope of the round-trip-delayed wave signal. The processor is also configured to include a correlation processing unit for establishing a correlation value between the first to-be-correlated signal and a signal based on the second to-be-correlated signal.
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公开(公告)号：US12253493B2
公开(公告)日：2025-03-18
申请号：US17312794
申请日：2019-12-24
Inventor： Daisuke Seo , Yasuhiro Toriyama
Abstract: The objective of the present invention is to measure gas concentration with a high degree of accuracy. A gas sensor is provided with: a sensor enclosure: an ultrasonic transducer provided at one end of the sensor enclosure; an ultrasonic wave reflecting surface which is provided at the other end of the sensor enclosure and which intersects an axial direction of the sensor enclosure; and a plurality of ventilation holes provided in a side wall of the sensor enclosure. The plurality of ventilation holes are provided at positions such that one side of the sensor enclosure cannot be seen from the other side thereof when viewed from a side surface side of the sensor enclosure, and each ventilation hole has a shape extending in the axial direction of the sensor enclosure.
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公开(公告)号：US11499939B2
公开(公告)日：2022-11-15
申请号：US16651409
申请日：2018-09-28
Inventor： Kouichi Tsujiya , Yoshifumi Shinfuku , Yasuhiro Toriyama
IPC: G01M3/24 , G01N29/44 , G01N27/416
Abstract: A gas concentration measurement device comprises: a transmission circuit and a transmission oscillator for transmitting first ultrasonic waves in a concentration measurement space and transmitting second ultrasonic waves, which continue temporally from the first ultrasonic waves in the concentration measurement space; a reception oscillator and a reception circuit for receiving the ultrasonic waves that have propagated through the concentration measurement space; and a propagation time measurement unit for determining, on the basis of the times at which the first ultrasonic waves and the second ultrasonic waves were transmitted and the times at which the first ultrasonic waves and the second ultrasonic waves were received, the time in which ultrasonic waves propagate through the concentration measurement space. The second ultrasonic waves have an opposite phase with respect to that of the first ultrasonic waves, and the amplitude of the second ultrasonic waves is greater than that of the first ultrasonic waves.
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17.发明申请DEVICE AND METHOD FOR MONITORING VARIATION OF ANIMAL RESPIRATION AND/OR HEARTBEAT 审中-公开用于监测动物呼吸和/或心脏变化的装置和方法公开(公告)号：US20150011899A1
公开(公告)日：2015-01-08
申请号：US14373770
申请日：2013-01-23
Inventor： Kazuhide Shigeto , Hirokazu Kikuchi , Shigemasa Ohya
IPC: A61B5/0205 , A61B5/00
CPC classification number: A61B5/0205 , A61B5/0002 , A61B5/0051 , A61B5/02405 , A61B5/0245 , A61B5/0816 , A61B5/6892 , A61B5/72 , A61B5/742 , A61B5/746 , A61B2562/0252
Abstract: A method of monitoring variation in either or both respiration and heartbeat of an animal comprising the steps of vibrating a piezoelectric vibrator by continuously or intermittently applying an AC voltage of a frequency corresponding to a natural resonance frequency of the vibrator to the piezoelectric vibrator under such condition that the vibrator is placed directly or indirectly in contact with the surface of the animal's body; collecting a current generated by the vibrator under vibration; and calculating an impedance of the vibrator from a value of the current and a value of the AC voltage applied to the vibrator so as to continuously or intermittently detect variation of the impedance by lapse of time is effective to monitor variation of respiration and/or heartbeat of animals including humans who are in sleep or under exercise and take a variety of positions with high sensitivity.
Abstract translation: 一种监测动物的呼吸和心跳中的任一种或两种的变化的方法，包括以下步骤：在这种状态下连续地或间歇地将对应于振动器的固有共振频率的频率的交流电压施加到压电振动器 振动器直接或间接地与动物身体的表面接触; 收集震动器振动产生的电流; 并且根据电流的值和施加到振动器的AC电压的值来计算振动器的阻抗，以便连续或间歇地检测阻抗随时间的变化是有效的，以监测呼吸和/或心跳的变化 包括正在睡眠或运动中的人的动物，并以高灵敏度采取各种姿势。
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