Patents by Inventor Hiroyuki Yokoi

Hiroyuki Yokoi 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: 20190226472
    Abstract: A valve includes a first plate (10) having a first through hole (100), a second plate (20) having a second through hole (210) that does not face the first through hole (100), a valve chamber (55) formed by being surrounded by the first plate (10) and the second plate (20), and a valve body (30) disposed in the valve chamber (55) and having a third through hole (300) that does not face the first through hole (100) and that faces the second through hole (200), the valve body (30) being movable up and down between the first plate (10) and the second plate (20). In addition, a second opening area of the second through hole (210) is smaller than a third opening area of the third through hole (300), and the second through hole (210) is located in the third through hole (300) when viewed from a front.
    Type: Application
    Filed: March 28, 2019
    Publication date: July 25, 2019
    Inventors: Nobuhira TANAKA, Hiroyuki YOKOI
  • Publication number: 20190160439
    Abstract: [Problem] To provide a device for manufacturing composite particles constructed by flow paths having relatively great widths and capable of controlling an adsorption ratio of particles, and to provide a method for manufacturing composite particles using this manufacturing device. [Solution] A device for manufacturing composite particles includes at least one first inlet flow path (2) for supplying a first fluid, at least one second inlet flow path (3) for supplying a second fluid, and a mixing flow path (5) for merging the first fluid and the second fluid supplied respectively from the first inlet flow path and the second inlet flow path and allowing the two kinds of fluids to flow down for a predetermined length while mixing the two kinds of fluids. The mixing flow path is a continuous flow path and has a heterogeneous cross-sectional flow path area in a continuity direction thereof.
    Type: Application
    Filed: July 27, 2017
    Publication date: May 30, 2019
    Applicant: National University Corporation TOYOHASHI UNIVERSITY OF TECHNOLOGY
    Inventors: Hiroyuki MUTO, Atsushi YOKOI, Naoto KIMURA, GO KAWAMURA, Atsunori MATSUDA
  • Patent number: 10280915
    Abstract: A fluid control device (10) having a flow passage passing through a pump chamber (45) and a valve chamber (40) includes a vibration unit (37) that vibrates to cause fluctuation of an internal pressure in the pump chamber (45), a valve bottom plate (23) facing the valve chamber (40) and having a communication hole (43) communicating with the pump chamber (45) at one end and communicating with the valve chamber (40) at the other end, and a valve top plate (21) facing the valve chamber (40) to be opposed to the valve bottom plate (23) and having a discharge hole (41) communicating with the valve chamber (40). The communication hole (43) and the discharge hole (41) are not opposed to each other, and the valve bottom plate (23) is elastically deformed by transmission of vibration of the vibration unit (37) thereto.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: May 7, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Daisuke Kondo, Kiyoshi Kurihara, Hiroyuki Yokoi, Hiroaki Wada
  • Patent number: 10221845
    Abstract: A piezoelectric blower (100) includes a housing (17), a vibrating plate (41), and a piezoelectric element (42). The vibrating plate (41) forms a column-shaped blower chamber (31) together with the housing (17). The vibrating plate (41) and the housing (17) are formed so that the blower chamber (31) has a radius a. The piezoelectric element (42) causes the vibrating plate (41) to concentrically bend and vibrate at a resonance frequency f. A recessed portion (26) is formed in the housing (17) on the side facing the vibrating plate (41). The recessed portion (26) defines a cavity (25), which constitutes the blower chamber (31) and communicates with the vent hole (24). The radius a of the blower chamber (31) and the resonance frequency f of the vibrating plate (41) satisfy a relationship of 0.8×(k0c)/(2?)?af?1.2×(k0c)/(2?).
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: March 5, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Nobuhira Tanaka, Hiroyuki Yokoi, Masahiro Sasaki, Kiyoshi Kurihara
  • Patent number: 10191038
    Abstract: In a known method of measuring a target substance, comprising: providing a sample solution containing the target substance, a first reaction solution, and a second reaction solution; sequentially aspirating the sample solution and the first reaction solution, using a measuring apparatus equipped with a dispensing unit, into the dispensing unit; discharging them at a time from the dispensing unit, to bring them into contact with the second reaction solution, and to form a complex of the target substance and a first partner which is contained in at least one of the first reaction solution or the second reaction solution and reacts specifically with the target substance; and analyzing the resulting complex, an improved method capable of inhibiting a reaction which adversely affects measurement results is provided.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: January 29, 2019
    Assignee: LSI MEDIENCE CORPORATION
    Inventors: Keiichi Shoji, Hiroyuki Yokoi
  • Patent number: 9828989
    Abstract: A liquid delivery device includes a constant flow valve, a pump and channels. A medicinal solution bag is connected to the liquid delivery device. The pump has a suction aperture, a discharge aperture and check valves. The constant flow valve includes a valve casing and a diaphragm that partitions the interior of the valve casing to form a first valve chamber and a second valve chamber. A first opening, a second opening, and a third opening are provided in the valve casing. A conical spring arranged between and in contact with a top plate and the diaphragm is provided in the second valve chamber. The spring applies a pressure towards an O-ring side to a second main surface of the diaphragm.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: November 28, 2017
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Hiroyuki Yokoi, Yuzo Higashiyama
  • Publication number: 20170218949
    Abstract: A fluid control device (111) includes a valve section (12) and a blower section (13). The valve section (12) allows fluid to flow in one direction. The valve section (12) has the shape of a cylindrical container with a valve chamber (40) provided therein. The valve section (12) includes a top plate (21), a side-wall plate (22), a bottom plate (23), and a film (24). A plurality of ejection holes (41) and a plurality of auxiliary holes (49) arranged in a predetermined pattern are formed in a central region of the top plate (21). A plurality of communication holes (43) arranged in a predetermined pattern are formed in a central region of the bottom plate (23). A plurality of film holes (42) arranged in a predetermined pattern are formed in a central region of the film (24).
    Type: Application
    Filed: April 20, 2017
    Publication date: August 3, 2017
    Inventors: Hiroyuki Yokoi, Daisuke Kondo, Nobuhira Tanaka
  • Publication number: 20170138357
    Abstract: A fluid control device (10) having a flow passage passing through a pump chamber (45) and a valve chamber (40) includes a vibration unit (37) that vibrates to cause fluctuation of an internal pressure in the pump chamber (45), a valve bottom plate (23) facing the valve chamber (40) and having a communication hole (43) communicating with the pump chamber (45) at one end and communicating with the valve chamber (40) at the other end, and a valve top plate (21) facing the valve chamber (40) to be opposed to the valve bottom plate (23) and having a discharge hole (41) communicating with the valve chamber (40). The communication hole (43) and the discharge hole (41) are not opposed to each other, and the valve bottom plate (23) is elastically deformed by transmission of vibration of the vibration unit (37) thereto.
    Type: Application
    Filed: January 11, 2017
    Publication date: May 18, 2017
    Inventors: Daisuke Kondo, Kiyoshi Kurihara, Hiroyuki Yokoi, Hiroaki Wada
  • Publication number: 20160377073
    Abstract: A piezoelectric blower (100) includes a housing (17), a vibrating plate (41), and a piezoelectric element (42). The vibrating plate (41) forms a column-shaped blower chamber (31) together with the housing (17). The vibrating plate (41) and the housing (17) are formed so that the blower chamber (31) has a radius a. The piezoelectric element (42) causes the vibrating plate (41) to concentrically bend and vibrate at a resonance frequency f. A recessed portion (26) is formed in the housing (17) on the side facing the vibrating plate (41). The recessed portion (26) defines a cavity (25), which constitutes the blower chamber (31) and communicates with the vent hole (24). The radius a of the blower chamber (31) and the resonance frequency f of the vibrating plate (41) satisfy a relationship of 0.8×(k0c)/(2?)?af?1.2×(k0c)/(2?).
    Type: Application
    Filed: September 7, 2016
    Publication date: December 29, 2016
    Inventors: Nobuhira TANAKA, Hiroyuki YOKOI, Masahiro SASAKI, Kiyoshi KURIHARA
  • Publication number: 20150248848
    Abstract: A syringe operation detection device includes: a female joint part to be joined to a barrel tip; a male joint part to be joined to a needle hub; a coupling container for allowing the female joint part to be continuous with the male joint part while being closed externally; a detector detecting a pressure, flow velocity, or flow rate of a fluid; and a controller to which a signal from the detector is inputted, the controller including: a sensing section for detecting the signal from the detector; a determination criteria setting section for setting a determination criterion value; and a determination section for determining whether a syringe is operated skillfully or not by comparing sensing data based on the signal with the determination criterion value, and informing a determination result to an operator. As a result, there is provided the syringe operation detection device capable of being applied to a syringe actually used and evaluating an operation state of a syringe in objective terms.
    Type: Application
    Filed: May 15, 2015
    Publication date: September 3, 2015
    Inventors: Hiroyuki YOKOI, Yusuki OOTAKE, Hiroshi NAKASE
  • Publication number: 20150167664
    Abstract: A liquid delivery device includes a constant flow valve, a pump and channels. A medicinal solution bag is connected to the liquid delivery device. The pump has a suction aperture, a discharge aperture and check valves. The constant flow valve includes a valve casing and a diaphragm that partitions the interior of the valve casing to form a first valve chamber and a second valve chamber. A first opening, a second opening, and a third opening are provided in the valve casing. A conical spring arranged between and in contact with a top plate and the diaphragm is provided in the second valve chamber. The spring applies a pressure towards an O-ring side to a second main surface of the diaphragm.
    Type: Application
    Filed: December 16, 2014
    Publication date: June 18, 2015
    Inventors: Hiroyuki Yokoi, Yuzo Higashiyama
  • Publication number: 20140127661
    Abstract: Provided is a syringe operation detection device 1 for detecting a drawing or injecting operation of a plunger 120 in a syringe 100. A female joint part 52 is joined to a barrel tip 116 of the syringe 100, a male joint part 60 is joined to a needle hub 132 of a syringe needle 130, and a coupling container 70 is placed between the female joint part 52 and the male joint part 60, for allowing them to be continuous with each other while being closed externally. A detector for detecting a pressure, flow velocity, or flow rate of a fluid moving therein is placed in any one of the coupling container 70, the female joint part 52, and the male joint part 60. As a result, there is provided the syringe operation detection device capable of being applied to a syringe actually used and evaluating a drawing or injecting state in objective terms.
    Type: Application
    Filed: July 20, 2012
    Publication date: May 8, 2014
    Applicant: ICST CORPORATION
    Inventor: Hiroyuki Yokoi
  • Publication number: 20140017712
    Abstract: In a known method of measuring a target substance, comprising: providing a sample solution containing the target substance, a first reaction solution, and a second reaction solution; sequentially aspirating the sample solution and the first reaction solution, using a measuring apparatus equipped with a dispensing unit, into the dispensing unit; discharging them at a time from the dispensing unit, to bring them into contact with the second reaction solution, and to form a complex of the target substance and a first partner which is contained in at least one of the first reaction solution or the second reaction solution and reacts specifically with the target substance; and analyzing the resulting complex, an improved method capable of inhibiting a reaction which adversely affects measurement results is provided.
    Type: Application
    Filed: March 27, 2012
    Publication date: January 16, 2014
    Applicant: Mitsubishi Chemical Medience Corporation
    Inventors: Keiichi Shoji, Hiroyuki Yokoi
  • Patent number: 8557599
    Abstract: A method of determining a kind of a sample, in a method for analyzing a substance by the steps of supplying the sample to be analyzed to a reaction system by a supplying means comprising a transparent region composed of a transparent material, reacting a reagent for detecting the substance with the sample in the reaction system, and analyzing a signal derived from a product obtained by the reaction, characterized by irradiating the transparent region with light in the supplying step, and analyzing an optical intensity of the light.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: October 15, 2013
    Assignee: Mitsubishi Chemical Medience Corporation
    Inventors: Atsushi Koyata, Hiroyuki Yokoi
  • Publication number: 20130255801
    Abstract: A fluid supply device includes a fluid supply source, a valve, a differential-pressure generator, and a pressurizing device. The valve includes a casing, a displacement member that divides an inside of the casing into a first valve chamber and a second valve chamber, the displacement member being displaced by a pressure of a fluid being exerted on a front main surface and a back main surface of the displacement member, a first opening provided in the first valve chamber, a second opening provided in the first valve chamber, and a third opening provided in the second valve chamber. Thus, flow rate fluctuations are reduced even when the pressure on the ejection side or the suction side of the device fluctuates due to changes in atmospheric conditions.
    Type: Application
    Filed: May 31, 2013
    Publication date: October 3, 2013
    Inventors: Atsuhiko HIRATA, Gaku KAMITANI, Hiroyuki YOKOI
  • Publication number: 20130225939
    Abstract: Provided is a glove for sensitizing touch perception with which fingertips can be moved smoothly across a wide area without influencing subtle touch perception and an examination by means of palpation can be performed highly accurately and smoothly. A glove 1 according to the present invention is a glove for sensitizing touch perception that is for use in detecting minute irregularities of an object via a sensitizing layer 2 by means of a hand inserted between the sensitizing layer 2 and an external cover 3. The sensitizing layer 2 includes: a first film 10 to be in contact with the object; a second film 12 layered on the first film 10; and an air introduction opening 14 for introducing air between the first film 10 and the second film 12 to allow the second film 12 to slide relative to the first film 10.
    Type: Application
    Filed: July 15, 2011
    Publication date: August 29, 2013
    Applicant: ICST CORPORATION
    Inventor: Hiroyuki Yokoi
  • Patent number: 8409872
    Abstract: A cartridge for use in measuring a component to be measured contained in a sample includes a diluting well for diluting a predetermined amount of the sample to a desired dilution, and a reaction well in which the component to be measured contained in the sample and a substance specifically reacting therewith are allowed to react. A diluting solution is filled in the diluting well in a predetermined amount to provide the desired dilution based on a type of the component to be measured when the predetermined amount of the sample is dispensed in the diluting well by a uniform operation.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: April 2, 2013
    Assignee: Mitsubishi Chemical Medience Corporation
    Inventors: Hiroyuki Yokoi, Takashi Kurihara
  • Patent number: 8383421
    Abstract: An object of the present invention is to provide a cartridge for automatic measurement used in an automatic measuring device, capable of automatically performing measurement including heat treatment of a sample, and a measuring device using the cartridge. The present invention relates to a cartridge for use in measuring a component to be measured contained in a sample, comprising: at least a heat-treatment well for performing heat treatment of the sample; and a reaction well for reacting the component to be measured in the sample with a material specifically reacting therewith.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: February 26, 2013
    Assignee: Mitsubishi Chemical Medience Corporation
    Inventors: Atsushi Yanagida, Takashi Kurihara, Hiroyuki Yokoi, Atsushi Koyata, Yoshikazu Okamura, Daishi Miyamoto
  • Publication number: 20130011856
    Abstract: An object of the present invention is to provide a cartridge for automatic measurement used in an automatic measuring device, capable of automatically performing measurement including heat treatment of a sample, and a measuring device using the cartridge. The present invention relates to a cartridge for use in measuring a component to be measured contained in a sample, comprising: at least a heat-treatment well for performing heat treatment of the sample; and a reaction well for reacting the component to be measured in the sample with a material specifically reacting therewith.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 10, 2013
    Applicant: MITSUBISHI KAGAKU IATRON, INC.
    Inventors: Atsushi YANAGIDA, Takashi KURIHARA, Hiroyuki YOKOI, Atsushi KOYATA, Yoshikazu OKAMURA, Daishi MIYAMOTO
  • Publication number: 20120309025
    Abstract: An analysis method capable of accurately measuring human sCD14-ST when using a whole blood sample is provided. In the analysis method, human sCD14-ST in a whole blood sample is analyzed within 6 hours of the collection of the sample.
    Type: Application
    Filed: January 28, 2011
    Publication date: December 6, 2012
    Applicant: MOCHIDA PHARMACEUTICAL CO., LTD
    Inventors: Yoshikazu Okamura, Hiroyuki Yokoi