Patents by Inventor Takahiro Itou

Takahiro Itou 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).

  • Patent number: 11536858
    Abstract: Provided is a radiation monitor and the like capable of appropriately measuring radiation. A radiation monitor (100) includes: radiation detection units (11, 12); optical fibers (13p, 13q) that transmit light generated by a plurality of radiation detection elements (11a, 12a) to merge; a light detection unit (14) that converts the light after merging guided to the light detection unit into an electric pulse; a measurement device (15) that calculates a dose rate of radiation based on a count rate of the electric pulses; and an analysis/display device (16). Housings (11b, 12b) include a housing (11b) made of a first material and another housing (12b) made of a second material.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: December 27, 2022
    Assignee: HITACHI, LTD.
    Inventors: Takahiro Tadokoro, Yuichiro Ueno, Katsunori Ueno, Kouichi Okada, Shuichi Hatakeyama, Yasushi Nagumo, Takahiro Itou, Yoshinobu Sakakibara
  • Patent number: 11504700
    Abstract: The present invention provides an exhaust gas purification catalyst including an alkaline earth metal supported in a highly dispersed state on a porous carrier. A catalyst layer of the exhaust gas purification catalyst provided by the invention has an alkaline earth metal-supporting region including a porous carrier, a catalyst metal belonging to the platinum group, and a sulfate of at least one type of alkali earth metal supported on the porous carrier. In a cross-section of this region, a Pearson correlation coefficient RAe/M is at least 0.5 as calculated using ? and ? for each pixel obtained by carrying out area analysis by FE-EPMA under conditions of pixel size of 0.34 ?m×0.34 ?m, and measured pixel number 256×256, and by measuring the characteristic X-ray intensity (?:cps) of the alkaline earth metal element (Ae) and the characteristic X-ray intensity (?:cps) of the main constituent element of the inorganic compound constituting the porous carrier for each pixel.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: November 22, 2022
    Assignee: Cataler Corporation
    Inventors: Shunsuke Oishi, Shogo Kawamura, Takahiro Nagata, Hirotaka Ori, Minoru Itou
  • Patent number: 11371915
    Abstract: In order to detach substances stably from an inspection object, an adhering substance collecting device includes: ejection openings configured to eject gas; a housing on which the ejection openings are provided; and supporting portions which are installed on a surface of the housing on which the ejection openings are provided, and have a prescribed height. The supporting portions include protruded portions formed on the housing. The supporting portions each have a cuboid shape, and are installed such that a distance therebetween becomes smaller toward a direction of a recovery opening that is configured to collect substances having been detached from an inspection object, from the gas.
    Type: Grant
    Filed: May 29, 2017
    Date of Patent: June 28, 2022
    Assignee: Hitachi, Ltd.
    Inventors: Shun Kumano, Masuyuki Sugiyama, Hisashi Nagano, Makoto Namai, Takahiro Itou
  • Publication number: 20210317348
    Abstract: An adhesive composition, comprising: an organic solvent; (A) a polyolefin that has an acidic group and/or an acid anhydride group and that is soluble in the organic solvent; and an isocyanate compound, wherein the isocyanate compound is (B) an isocyanate compound having an alicyclic structure, and/or a derivative thereof.
    Type: Application
    Filed: September 3, 2019
    Publication date: October 14, 2021
    Inventors: Takahiro ITOU, Makoto HIRAKAWA
  • Patent number: 10955401
    Abstract: In order to suppress malfunctions even when using a reagent (chemical for reagent) corresponding to a hazardous substance, the present invention has an analyzing unit in which a chemical for reagent, having added thereto an indicator that is different from a hazardous material that is a detection target, is used to calibrate on the basis of the detection target included in the chemical for reagent, and which performs mass spectrometry. When a peak corresponding to the indicator is not included and a peak corresponding to the detection target material is included in the spectrum that is the analysis result of the analyzing unit, the detection target is determined to be included.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: March 23, 2021
    Assignee: Hitachi, Ltd.
    Inventors: Hiroki Mizuno, Hisashi Nagano, Takahiro Itou, Makoto Namai, Fumihiko Nemoto
  • Patent number: 10899381
    Abstract: A steering device is provided to perform a safe transition from an automatic driving mode to a manual driving mode when necessary. When it is determined necessary to transition from the automatic driving mode to the manual driving mode during the automatic driving mode, a transition period before an end time point of the automatic driving mode is set, a driving operation reliability indicative of whether or not it is possible to perform the transition is determined, and the transition when it is determined that it is possible to perform the transition to the manual driving mode during the automatic driving mode. Consequently, the transition can be controlled so that transition is not performed instantly, such as, for example, in a case where a driver is not driving during the automatic driving mode and is not accustomed to manual driving.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: January 26, 2021
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Takahiro Itou, Kazuya Yamano, Yasuhito Nakakuki
  • Patent number: 10877167
    Abstract: Provided is a radiation monitor, including: a radiation detection unit which includes a radiation detection element, the radiation detection element emitting light of a predetermined light emission wavelength; a light emission unit which emits light of a wavelength different from the light emission wavelength; a wavelength selection unit which passes the light of the light emission wavelength, and is set to a first mode to block the light from the light emission unit; an optical transmission line which transmits the light; a light detection unit which converts the light passing through the wavelength selection unit into an electric pulse; and a control unit which measures a count rate of the electric pulse, and determines whether at least the light emission unit is degraded on the basis of the count rate and a light intensity of the light emission unit.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: December 29, 2020
    Assignee: HITACHI, LTD.
    Inventors: Takahiro Tadokoro, Katsunori Ueno, Yuichiro Ueno, Kouichi Okada, Shuichi Hatakeyama, Yasushi Nagumo, Yoshinobu Sakakibara, Toru Shibutani, Takahiro Itou
  • Patent number: 10865064
    Abstract: A sheet stacker includes a sheet ejector, a sheet stack portion, and air blowers. The sheet ejector ejects a sheet. The sheet stack portion stacks the sheet ejected by the sheet ejector. The air blowers blow air from blow ports toward the sheet ejected from the sheet ejector. Each of the air blowers includes an air generator, an air guide, a first blow portion, a second blow portion, and a switcher. The air generator generates the air. The air guide guides the air to each of the blow ports. The first blow portion blows the air toward the sheet. The second blow portion blows the air in a direction different from a direction in which the first blow portion blows the air. The switcher performs switching so that the air guide guides the air to one of the first blow portion and the second blow portion.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: December 15, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Masaaki Kawasaki, Takahiro Itou, Hiroshi Hirako
  • Publication number: 20200319061
    Abstract: In order to detach substances stably from an inspection object, an adhering substance collecting device includes: ejection openings configured to eject gas; a housing on which the ejection openings are provided; and supporting portions which are installed on a surface of the housing on which the ejection openings are provided, and have a prescribed height. The supporting portions include protruded portions formed on the housing. The supporting portions each have a cuboid shape, and are installed such that a distance therebetween becomes smaller toward a direction of a recovery opening that is configured to collect substances having been detached from an inspection object, from the gas.
    Type: Application
    Filed: May 29, 2017
    Publication date: October 8, 2020
    Inventors: Shun KUMANO, Masuyuki SUGIYAMA, Hisashi NAGANO, Makoto NAMAI, Takahiro ITOU
  • Patent number: 10766523
    Abstract: Provided is a steering device which allows continued safe travel in the event of a fault during automatic steering control. The steering device is equipped with an electric drive device composed of a plurality of systems of electric motors and has an assist control function for assisting a driver in steering and an automatic steering control function for automatically controlling the steering angle of steered wheels on the basis of a steering angle instruction value.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: September 8, 2020
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Takahiro Itou, Masaru Yamasaki, Mitsuo Sasaki, Kazuya Yamano
  • Publication number: 20200278458
    Abstract: Provided is a radiation monitor and the like capable of appropriately measuring radiation. A radiation monitor (100) includes: radiation detection units (11, 12); optical fibers (13p, 13q) that transmit light generated by a plurality of radiation detection elements (11a, 12a) to merge; a light detection unit (14) that converts the light after merging guided to the light detection unit into an electric pulse; a measurement device (15) that calculates a dose rate of radiation based on a count rate of the electric pulses; and an analysis/display device (16). Housings (11b, 12b) include a housing (11b) made of a first material and another housing (12b) made of a second material.
    Type: Application
    Filed: August 30, 2018
    Publication date: September 3, 2020
    Inventors: Takahiro TADOKORO, Yuichiro UENO, Katsunori UENO, Kouichi OKADA, Shuichi HATAKEYAMA, Yasushi NAGUMO, Takahiro ITOU, Yoshinobu SAKAKIBARA
  • Patent number: 10589787
    Abstract: It is an object of the present invention to provide a power steering apparatus control device in which it is possible to suppress generation of the canceling of the automatic steering unintended by the driver. The present invention provides a control device controlling the operation of a power steering apparatus in which there is selected either an assist control (28) in which a steering force is assisted based on a steering torque input through the operation of a steering wheel or an automatic steering control (29) in which a steering angle of a turning wheel is controlled based on a steering angle command value. When, in the state in which the automatic steering control (29) is selected, the steering torque exceeds a predetermined threshold value, the automatic steering control (29) is canceled and the assist control (28) is selected.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: March 17, 2020
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Takahiro Itou, Kenta Maeda, Kazuya Yamano, Yasuhito Nakakuki
  • Publication number: 20190276077
    Abstract: The steering control device includes an automatic steering controller that generates an automatic steering control amount and a manual steering controller that generates a manual steering control amount, and selects either one of an automatic steering mode and a manual steering mode to control an electric motor. When steering torque exceeds a predetermined value during the control in the automatic steering mode, the manual steering controller generates a manual steering control amount change based on the change in the manual operation amount with reference to the time of exceeding, generates the manual steering control amount based on the steering torque, controls the electric motor based on a control amount obtained by adding the manual steering control amount change to the automatic steering control amount at the time of exceeding, and then controls the electric motor in the manual steering mode.
    Type: Application
    Filed: November 1, 2017
    Publication date: September 12, 2019
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Takahiro ITOU, Kazuya YAMANO, Yasuhito NAKAKUKI
  • Publication number: 20190256749
    Abstract: The polyester-based resin composition according to the present invention is, at least, a polyester-based resin composition including: a polyester resin (A); a surfactant (B); and a terpene-based resin (C), in which the polyester resin (A) is obtained by copolymerizing, as a constituent component, a compound that has, as a frame, a polyalkylene glycol having a number of repeating units of from 3 to 50, in which the surfactant (B) is a non-ionic surfactant having a polyalkylene glycol frame, in which a mixing ratio (A)/(C) of the polyester resin (A) to the terpene-based resin (C) is from 80/20 to 99/1 by mass ratio, and in which the polyester-based resin composition has a water contact angle of 30° or less.
    Type: Application
    Filed: October 16, 2017
    Publication date: August 22, 2019
    Applicant: TOAGOSEI CO., LTD.
    Inventors: Takahiro ITOU, Makoto IMAHORI
  • Publication number: 20190233237
    Abstract: A sheet stacker includes a sheet ejector, a sheet stack portion, and air blowers. The sheet ejector ejects a sheet. The sheet stack portion stacks the sheet ejected by the sheet ejector. The air blowers blow air from blow ports toward the sheet ejected from the sheet ejector. Each of the air blowers includes an air generator, an air guide, a first blow portion, a second blow portion, and a switcher. The air generator generates the air. The air guide guides the air to each of the blow ports. The first blow portion blows the air toward the sheet. The second blow portion blows the air in a direction different from a direction in which the first blow portion blows the air. The switcher performs switching so that the air guide guides the air to one of the first blow portion and the second blow portion.
    Type: Application
    Filed: January 29, 2019
    Publication date: August 1, 2019
    Applicant: Ricoh Company, Ltd.
    Inventors: Masaaki Kawasaki, Takahiro ITOU, Hiroshi HIRAKO
  • Publication number: 20190202494
    Abstract: There is provided a novel steering device capable of perform safe transition from an automatic driving mode to a manual driving mode in a case where it is necessary to perform transition from the automatic driving mode to the manual driving mode. In a case where it is determined that it is necessary to perform transition from the automatic driving mode to the manual driving mode (S8) during the automatic driving mode (S1), a transition period Lth before an end time point of the automatic driving mode (S1) is set, the driving operation reliability (S5) as to whether or not it is possible to perform the transition to the manual driving mode during the transition period is determined, and the transition from the automatic driving mode (S1) to the manual driving mode (S8) is performed in a case where it is determined that it is possible to perform the transition to the manual driving mode (S8).
    Type: Application
    Filed: March 22, 2017
    Publication date: July 4, 2019
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Takahiro ITOU, Kazuya YAMANO, Yasuhito NAKAKUKI
  • Publication number: 20190204457
    Abstract: Provided is a radiation monitor, including: a radiation detection unit which includes a radiation detection element, the radiation detection element emitting light of a predetermined light emission wavelength; a light emission unit which emits light of a wavelength different from the light emission wavelength; a wavelength selection unit which passes the light of the light emission wavelength, and is set to a first mode to block the light from the light emission unit; an optical transmission line which transmits the light; a light detection unit which converts the light passing through the wavelength selection unit into an electric pulse; and a control unit which measures a count rate of the electric pulse, and determines whether at least the light emission unit is degraded on the basis of the count rate and a light intensity of the light emission unit.
    Type: Application
    Filed: August 8, 2017
    Publication date: July 4, 2019
    Inventors: Takahiro TADOKORO, Katsunori UENO, Yuichiro UENO, Kouichi OKADA, Shuichi HATAKEYAMA, Yasushi NAGUMO, Yoshinobu SAKAKIBARA, Toru SHIBUTANI, Takahiro ITOU
  • Publication number: 20190178865
    Abstract: In order to suppress malfunctions even when using a reagent (chemical for reagent) corresponding to a hazardous substance, the present invention has an analyzing unit in which a chemical for reagent, having added thereto an indicator that is different from a hazardous material that is a detection target, is used to calibrate on the basis of the detection target included in the chemical for reagent, and which performs mass spectrometry. When a peak corresponding to the indicator is not included and a peak corresponding to the detection target material is included in the spectrum that is the analysis result of the analyzing unit, the detection target is determined to be included.
    Type: Application
    Filed: April 13, 2017
    Publication date: June 13, 2019
    Inventors: Hiroki MIZUNO, Hisashi NAGANO, Takahiro ITOU, Makoto NAMAI, Fumihiko NEMOTO
  • Publication number: 20190016378
    Abstract: Provided is a steering device which allows continued safe travel in the event of a fault during automatic steering control. The steering device is equipped with an electric drive device composed of a plurality of systems of electric motors and has an assist control function for assisting a driver in steering and an automatic steering control function for automatically controlling the steering angle of steered wheels on the basis of a steering angle instruction value.
    Type: Application
    Filed: January 5, 2017
    Publication date: January 17, 2019
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Takahiro ITOU, Masaru YAMASAKI, Mitsuo SASAKI, Kazuya YAMANO
  • Publication number: 20180186406
    Abstract: It is an object of the present invention to provide a power steering apparatus control device in which it is possible to suppress generation of the canceling of the automatic steering unintended by the driver. The present invention provides a control device controlling the operation of a power steering apparatus in which there is selected either an assist control (28) in which a steering force is assisted based on a steering torque input through the operation of a steering wheel or an automatic steering control (29) in which a steering angle of a turning wheel is controlled based on a steering angle command value. When, in the state in which the automatic steering control (29) is selected, the steering torque exceeds a predetermined threshold value, the automatic steering control (29) is canceled and the assist control (28) is selected.
    Type: Application
    Filed: June 9, 2016
    Publication date: July 5, 2018
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Takahiro ITOU, Kenta MAEDA, Kazuya YAMANO, Yasuhito NAKAKUKI