Patents by Inventor Yoshihiro Yamashita

Yoshihiro Yamashita 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: 20220034929
    Abstract: Provided is an automatic analyzer in which an abnormality of a flow path including malfunction of an electromagnetic valve or a pressure change portion can be detected using an existing sensor that measures a liquid amount in a container. A syringe 103, a first electromagnetic valve 104, and a second electromagnetic valve 105 are operated such that a predetermined liquid aspirating and discharging operation is performed in a container 101, a liquid discharging unit 108, and flow path systems 113 and 114 and whether or not an abnormality occurs in the flow path system is determined based on a liquid amount measured by the sensor 102.
    Type: Application
    Filed: August 29, 2019
    Publication date: February 3, 2022
    Inventors: Yuki Yokota, Koshin Hamasaki, Yoshihiro Yamashita
  • Publication number: 20220009547
    Abstract: A steering device incudes an electric motor configured to steer a steered wheel coupled to a steering wheel and a control unit configured to control the electric motor and change a steering angle of the steered wheel. The control unit includes an angle feedback control unit configured to execute automatic traveling control and automatic parking control, and a gain setting unit configured to set a feedback gain in the automatic parking control to a value smaller than a feedback gain in the automatic traveling control.
    Type: Application
    Filed: November 19, 2019
    Publication date: January 13, 2022
    Applicants: JTEKT CORPORATION, NISSAN MOTOR CO., LTD.
    Inventors: Shintaro OSAJIMA, Taisuke UEDA, Yosuke YAMAMOTO, Masaya ISHIMOTO, Gempei NAKASONE, Hiromasa TAMAKI, Shinya AONO, Yoshihiro YAMASHITA
  • Publication number: 20220005223
    Abstract: A coordinate calculation apparatus 10 includes: an image selection unit 11 configured to select, when a specific portion is designated in an object, two or more images including the specific portion from the images of the object; a three-dimensional coordinate calculation unit 12 configured to specify, for each of the selected images, a location of points corresponding to each other at the specific portion, and calculating a three-dimensional coordinate of the specific portion by using the location of the point specified for each of the images and the camera matrix calculated in advance for each of the images; a three-dimensional model display unit 13 configured to display, using the point cloud data of the object, a three-dimensional model of the object on a screen, and displaying the designated specific portion on the three-dimensional model based on the calculated three-dimensional coordinates.
    Type: Application
    Filed: November 27, 2019
    Publication date: January 6, 2022
    Applicant: NEC Solution Innovators, Ltd.
    Inventor: Yoshihiro YAMASHITA
  • Patent number: 11169168
    Abstract: An automated analyzer includes a reagent container holder (2) including an openable and closable opening (23) and including a plurality of reagent container holding slots capable of holding reagent containers at internal predetermined positions, and loading assisting means (24) for executing a loading process of conveying the reagent container (3) from outside of the reagent container holder (2) into the reagent container holder (2) via the opening (23) to load the reagent container (3) into the reagent container holding slot (26) and a taking-out process of conveying the reagent container (3) from the reagent container holding slot (26) to outside of the reagent container holder (2) via the opening (23). The loading assisting means (24) is further provided with placing means (33) for the reagent container (3), and an operation handle (34) to be operated for driving the loading assisting means (24).
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: November 9, 2021
    Assignee: Hitachi High-Tech Corporation
    Inventors: Taichiro Yamashita, Yoshihiro Yamashita, Takenori Okusa, Shunsuke Sasaki
  • Patent number: 11161118
    Abstract: The mixing of reagents with each other in the reagent storage flow paths of an automatic analyzer is suppressed before and after exchange of the reagents, which are capable of being replenished without stopping analysis. An exchangeable reagent container that accommodates a reagent is connected to a reagent storage flow path that stores a portion of the reagent. The reagent storage flow path has first and second flow paths in which the second flow path is branched from the first flow path. A reagent syringe applies a negative or a positive pressure to the first and second flow paths; and a valve controls the flow path through which the reagent is sent. As a result, the reagent supplied to a measurement portion at a predetermined timing is switched from the reagent container to the reagent storage flow path wherein the reagent can be supplied without stopping analysis.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: November 2, 2021
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Hiroki Fujita, Toshiharu Suzuki, Takenori Okusa, Shunsuke Sasaki, Yoshihiro Yamashita, Kenta Imai
  • Publication number: 20210018522
    Abstract: An object is to provide an automatic analyzer that prevents an effect of various environmental changes on an equilibrium state of an immunological binding reaction. An automatic analyzer of an embodiment of the invention includes a B/F separation unit that executes a B/F separation step separating an unreacted component and a reacted component from a liquid in which a sample and a reagent are reacted, a detection unit that detects a reacted component in the liquid after the B/F separation step, and a temperature maintaining unit that maintains the B/F separation unit and the detection unit in substantially the same temperature environment.
    Type: Application
    Filed: July 26, 2018
    Publication date: January 21, 2021
    Inventors: Yoshihiro YAMASHITA, Takenori OKUSA, Shunsuke SASAKI
  • Publication number: 20200378994
    Abstract: The object of the invention is to provide an automatic analysis apparatus which is capable of both sterilizing a reagent and suppressing property variations in the reagent. Provided is an automatic analysis apparatus including a reagent vessel which holds a reagent; a suction nozzle which sucks the reagent; an analysis unit which executes an analysis operation by adding a reagent sucked from the reagent vessel to a specimen via the suction nozzle; an ultraviolet ray source which sterilizes a reagent by ultraviolet irradiation; and an electrode or a substrate which supplies electric power to the ultraviolet ray source, in which a heat insulation portion is arranged between a reagent in the suction nozzle and the ultraviolet ray source and the electrode or the substrate, or, it is isolated between a reagent in the suction nozzle and the ultraviolet ray source and the electrode or the substrate.
    Type: Application
    Filed: October 31, 2018
    Publication date: December 3, 2020
    Inventors: Takeshi ISHIDA, Yoshihiro YAMASHITA, Hisashi YABUTANI, Koshin HAMASAKI
  • Patent number: 10821531
    Abstract: A hard tip band-saw blade includes alternating sawtooth groups. Each of the sawtooth groups includes two sawtooth subgroups. The first sawtooth subgroup includes, as a plurality of sawteeth, a first leading tooth and a first following tooth and the second sawtooth subgroup includes, as a plurality of sawteeth, a second leading tooth, a second following tooth, and a third following tooth. Each tooth top corner part of a hard tip of the first following tooth, a tooth top corner part on a left side of a hard tip of the second following tooth, and a tooth top corner part on a right side of a hard tip of the third following tooth most outwardly protrude in a left-right direction.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: November 3, 2020
    Assignees: AMADA HOLDINGS CO., LTD., AMADA MACHINE TOOLS COMPANY, LTD.
    Inventors: Yoshihiro Yamashita, Manfred Schloegl, Kensaku Maeda
  • Publication number: 20200319218
    Abstract: [Task] To provide an automatic analysis apparatus including a photomultiplier tube which controls a sensitivity of the photomultiplier tube without adjusting a high voltage value. [Solution] An automatic analysis apparatus according to the present invention includes a photomultiplier tube which detects light from a reaction vessel; a determination unit which determines an output signal of the photomultiplier tube in a case where the photomultiplier tube is irradiated with first light; and a control unit which irradiates the photomultiplier tube with second light to lower a sensitivity of the photomultiplier tube in accordance with a determination result by the determination unit.
    Type: Application
    Filed: November 19, 2018
    Publication date: October 8, 2020
    Inventors: Shunichirou NOBUKI, Koshin HAMASAKI, Taku SAKAZUME, Yoshihiro YAMASHITA, Hidetsugu TANOUE, Tatsuki TAKAKURA
  • Patent number: 10761000
    Abstract: In a liquid stirring method, after a second liquid is discharged into a reaction container accommodating a first liquid from a dispensing probe provided with a dispensing tip at the leading end thereof, a mixture of the first liquid and second liquid in the container is stirred by being sucked out and discharged by the dispensing probe. The number of stirrings through sucking out and discharging is changed according to the total volume of the first liquid and second liquid. If the total volume of the first liquid and second liquid is below a preset threshold, sucking out and discharging is repeated for a prescribed number of times.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: September 1, 2020
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Shunsuke Sasaki, Yoshihiro Yamashita
  • Patent number: 10753953
    Abstract: Provided are an automated analyzer for analyzing a substance contained in an unknown sample and a liquid reservoir, the analyzer and the reservoir being capable of saving users' operation without remarkably increasing the number of components. A flow path outlet of an overflow portion of the liquid reservoirs projects closer to the inner circumferential side of a drain flow path than to an inner circumferential surface side of an outer wall of the drain flow path serving as a destination to which liquid overflows. In addition, the flow path outlet projects so as to come into contact with an outer wall of the inner pipe. The flow path outlet of the overflow portion projects into the drain flow path so as to be located below an upper end of the outer wall of the drain flow path.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: August 25, 2020
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Reika Kuroda, Kenta Imai, Yukinori Sakashita, Yoshihiro Yamashita
  • Publication number: 20200249249
    Abstract: An automatic analysis device includes a probe that performs a dispensing operation including a suction process and a discharge process with respect to liquid; a syringe that generates a pressure change for dispensing liquid at the probe; a flow path that connects the probe and the syringe with each other; a pressure sensor that measures the pressure change in the flow path at the time of liquid dispensing; a storage portion that stores a pressure change of time-series when reference fluid is discharged as a reference discharge pressure waveform; and a determination portion that determines whether or not there is an abnormality in the suction process of the sample from a relationship between a value of difference or a ratio between the reference discharge pressure waveform and the pressure waveform of a determination target at the time of discharge of liquid and normal range.
    Type: Application
    Filed: February 15, 2018
    Publication date: August 6, 2020
    Inventors: Hiroya UMEKI, Kenta IMAI, Yoshihiro YAMASHITA, Shunsuke SASAKI, Akihiro ENDOU
  • Publication number: 20200241022
    Abstract: It is necessary to dispose a plurality of units which have different target temperatures on an apparatus in a more integrated state in order to improve analysis performance and processing capacity per unit space of the apparatus. Therefore, it is necessary to mitigate influence of temperature exerted between units. It is possible to reduce the temperature influence exerted between the units and thus efficiently control temperature by properly disposing the units in the apparatus, based on the relationship between a use environment temperature of the apparatus and a target temperature of each unit and temperature accuracy required for the unit.
    Type: Application
    Filed: January 18, 2018
    Publication date: July 30, 2020
    Inventors: Takenori OKUSA, Yoshihiro YAMASHITA, Shunsuke SASAKI
  • Publication number: 20200241029
    Abstract: There is provided an automatic analysis device that can easily realize introduction and replacement of additional reagents in operation even in a small-scale configuration. The automatic analysis device includes a reagent dispensing mechanism 107 that dispenses a reagent from a reagent container 113 containing a reagent, and a normal reagent storage portion 130 that stores a reagent container and an additional reagent storage portion 111. The normal reagent storage portion 130 is positioned in a normal movable area 132, which is a portion of a movable area 131 of the reagent dispensing mechanism 107 and the additional reagent storage portion 111 is positioned in an area excluding the normal movable area 132 in the movable area 131 of the reagent dispensing mechanism 107.
    Type: Application
    Filed: June 21, 2018
    Publication date: July 30, 2020
    Inventors: Kenta IMAI, Hiroya UMEKI, Shunsuke SASAKI, Yoshihiro YAMASHITA, Taku SAKAZUME
  • Publication number: 20200240981
    Abstract: The automatic analyzer includes: a sample dispensing unit that dispenses a sample into a reaction vessel; a reagent dispensing unit that dispenses a reagent into the reaction vessel; a control unit that controls the sample dispensing unit and the reagent dispensing unit; and a measurement unit that measures a mixed solution of the sample and the reagent mixed in the reaction vessel. The reagent includes three types of reagents of: a first reagent that specifically binds to an antigen in the sample; a second reagent that specifically binds to a site different from that to which the first reagent binds with respect to the antigen and has a label to be detected by the measurement unit; and a third reagent that specifically binds to a site different from the binding site of the first reagent and the antigen and contains insoluble carriers.
    Type: Application
    Filed: January 29, 2019
    Publication date: July 30, 2020
    Inventors: Tatsuki TAKAKURA, Kenta IMAI, Takaaki HAGIWARA, Yoshihiro YAMASHITA, Taku SAKAZUME, Beatus OFENLOCH-HAEHNLE, Michaela WINDFUHR, Ursula PAUSELIUS-FUCHS, Rita HAERTEIS
  • Patent number: 10725062
    Abstract: An amount of gas remaining within a fluid control valve is reduced according to a method for fixing the fluid control valve to achieve highly accurate trace dispensation by simply removing gas. The dispensing device has a discharge nozzle, a liquid feeding tube that is disposed so as to connect a reagent bottle in which a reagent is stored and the discharge nozzle and forms a reagent flow path, and a fluid control valve that is disposed on the liquid feeding tube route connecting the reagent bottle and the discharge nozzle. The fluid control valve is provided with a reagent flow path having a liquid inlet and a liquid outlet and a diaphragm valve provided in the middle of the flow path. The fluid control valve is disposed in an orientation such that the diaphragm valve is disposed at the bottom of the flow path of the fluid control valve.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: July 28, 2020
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Koshin Hamasaki, Yoshihiro Yamashita
  • Publication number: 20200209273
    Abstract: The object of the invention is to provide an automatic analysis apparatus capable of setting a dispensing mechanism for measuring dispensing accuracy and a dispensing volume, and capable of performing dispensing accuracy measurement without absorbance measurement. Regarding a dispensing accuracy, a dispensing mechanism to be measured is designated. Parameters including a dispensing volume and the like are input. A dispensing operation of the input dispensing volume is automatically performed for each designated dispensing mechanism. A reaction vessel contains, for example, a reagent of the input dispensing volume which has been dispensed by the designated dispensing mechanism. By measuring a weight of the reagent in the reaction vessel, or the like, it is possible to measure the dispensing accuracy of the designated dispensing mechanism.
    Type: Application
    Filed: November 29, 2018
    Publication date: July 2, 2020
    Inventors: Yuichiro OTA, Takaaki HAGIWARA, Yoshihiro YAMASHITA, Koshin HAMASAKI, Michaela WINDFUHR, Heike GUGGEMOS, Johannes STOECKEL, Guenter ZIEGLER, Michael KUEHNL
  • Publication number: 20200191814
    Abstract: An automated analyzer includes a reagent container holder (2) including an openable and closable opening (23) and including a plurality of reagent container holding slots capable of holding reagent containers at internal predetermined positions, and loading assisting means (24) for executing a loading process of conveying the reagent container (3) from outside of the reagent container holder (2) into the reagent container holder (2) via the opening (23) to load the reagent container (3) into the reagent container holding slot (26) and a taking-out process of conveying the reagent container (3) from the reagent container holding slot (26) to outside of the reagent container holder (2) via the opening (23). The loading assisting means (24) is further provided with placing means (33) for the reagent container (3), and an operation handle (34) to be operated for driving the loading assisting means (24).
    Type: Application
    Filed: March 7, 2018
    Publication date: June 18, 2020
    Inventors: Taichiro YAMASHITA, Yoshihiro YAMASHITA, Takenori OKUSA, Shunsuke SASAKI
  • Publication number: 20200171182
    Abstract: An analyzer that has a simple configuration, that is inexpensive, that can improve safety, and that can inhibit proliferation of microorganisms using ultraviolet light is realized. A first electric power switch, a second electric power switch, and a third electric power switch are connected in series between an ultraviolet LED that irradiates an interior of a shared reagent storage container with ultraviolet light and a power supply that supplies electric power to the ultraviolet LED. The first electric power switch, the second electric power switch, and the third electric power switch are configured with two contact points and a connection section that connects and disconnects the two contact points. The first electric power switch is opened when a reagent storage door is opened, and the second electric power switch is opened in response to an action of extracting an ultraviolet irradiation section from a shared reagent storage container.
    Type: Application
    Filed: September 10, 2018
    Publication date: June 4, 2020
    Inventors: Hisashi YABUTANI, Takeshi ISHIDA, Yoshihiro YAMASHITA, Taku SAKAZUME, Michaela WINDFUHR, Bernhard HAUPTMANN, Andreas FINKE
  • Publication number: 20200009669
    Abstract: A hard tip band-saw blade includes alternating sawtooth groups. Each of the sawtooth groups includes two sawtooth subgroups. The first sawtooth subgroup includes, as a plurality of sawteeth, a first leading tooth and a first following tooth and the second sawtooth subgroup includes, as a plurality of sawteeth, a second leading tooth, a second following tooth, and a third following tooth. Each tooth top corner part of a hard tip of the first following tooth, a tooth top corner part on a left side of a hard tip of the second following tooth, and a tooth top corner part on a right side of a hard tip of the third following tooth most outwardly protrude in a left-right direction.
    Type: Application
    Filed: February 21, 2018
    Publication date: January 9, 2020
    Applicants: AMADA HOLDINGS CO., LTD., AMADA MACHINE TOOLS COMPANY, LTD.
    Inventors: Yoshihiro YAMASHITA, Manfred SCHLOEGL, Kensaku MAEDA