Patents by Inventor Hirokazu Shimizu

Hirokazu Shimizu 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: 11873235
    Abstract: There is provided an activated carbon having a high total trihalomethane filtration capacity, even in water treatment by passing water at a high superficial velocity (SV). In the activated carbon of the present invention, a pore volume A of pores with a size of 1.0 nm or less, of pore volumes calculated by the QSDFT method, is 0.3 cc/g or more, and a pore volume B of pores with a size of 3.0 nm or more and 3.5 nm or less, of pore volumes calculated by the QSDFT method, is 0.009 cc/g or more.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: January 16, 2024
    Assignees: AD'ALL CO., LTD., UNITIKA LTD.
    Inventors: Tomoyasu Nakano, Hirokazu Shimizu, Akinori Kawachi, Keiji Sakai
  • Publication number: 20230282423
    Abstract: A multilayer ceramic electronic component includes a ceramic body, which includes an electrode-stacking portion in which internal electrodes are stacked, and cover portions facing each other in a first axis direction across the electrode-stacking portion, and external electrodes each including a covering portion that covers the ceramic body from a second axis direction, and an extending portion that extends over the cover portions along the second axis direction. The ceramic body includes crystal grains of ceramic and segregated small grains located between the crystal grains. In a cross section of an end section located between the extending portion of the cover portion and the electrode-stacking portion, the number of the segregated small grains having a grain size of 0.5% or greater and 10% or less of an average grain size of the crystal grains is 40% or greater and 95% or less of the number of the crystal grains.
    Type: Application
    Filed: March 1, 2023
    Publication date: September 7, 2023
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Norihiro ARAI, Kazumichi HIROI, Hirokazu SHIMIZU
  • Patent number: 11391234
    Abstract: In a variable valve control device, a variable valve control system and a method for controlling a variable valve mechanism according to the present invention, An ECM (201) transmits a phase detection value (RA1) computed based on a crank angle signal (CRANK) and a cam angle signal (CAM) to a VTC control unit (202) via a communication network (211), and VTC control unit (202) computes a phase detection value (RA2) based on a motor angle signal (MAS), controls a variable valve timing mechanism (114) based on phase detection value (RA2) in the transient state of an internal combustion engine, and controls variable valve timing mechanism (114) based on phase detection value (RA1) in the steady state of the internal combustion engine.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: July 19, 2022
    Assignee: Hitachi Astemo, Ltd.
    Inventors: Nobuhiko Matsuo, Hirokazu Shimizu
  • Publication number: 20210340887
    Abstract: A control device and a control method for a variable valve timing mechanism are provided so as to improve the accuracy of cam phase angle interpolation without using a motor rotation angle sensor. The control device for the variable valve timing mechanism includes a controller configured to detect a phase angle of a cam based on a cam signal and control the phase angle of the cam by using an electric motor. The controller is configured such that a motor torque estimation unit calculates a motor torque from a motor current based on motor characteristics, a motor rotation-angle estimation unit calculates a motor rotation angle at least based on the motor torque and an engine operating state, and a conversion unit and a feedback control unit interpolate the cam phase angle of the variable valve timing mechanism from the motor rotation angle.
    Type: Application
    Filed: November 13, 2019
    Publication date: November 4, 2021
    Inventors: Masaki KOSUDA, Hirokazu SHIMIZU, Nobuhiko MATSUO
  • Publication number: 20210261442
    Abstract: There is provided an activated carbon having a high total trihalomethane filtration capacity, even in water treatment by passing water at a high superficial velocity (SV). In the activated carbon of the present invention, a pore volume A (cc/g) of pores with a size of 1.0 nm or less, of pore volumes calculated by the QSDFT method, is 0.300 cc/g or more, and elemental vanadium and/or a vanadium compound is contained.
    Type: Application
    Filed: June 18, 2019
    Publication date: August 26, 2021
    Inventors: Tomoyasu NAKANO, Hirokazu SHIMIZU, Keiji SAKAI
  • Publication number: 20210261441
    Abstract: There is provided an activated carbon having a high total trihalomethane filtration capacity, even in water treatment by passing water at a high superficial velocity (SV). In the activated carbon of the present invention, a pore volume A of pores with a size of 1.0 nm or less, of pore volumes calculated by the QSDFT method, is 0.3 cc/g or more, and a pore volume B of pores with a size of 3.0 nm or more and 3.5 nm or less, of pore volumes calculated by the QSDFT method, is 0.009 cc/g or more.
    Type: Application
    Filed: June 18, 2019
    Publication date: August 26, 2021
    Inventors: Tomoyasu NAKANO, Hirokazu SHIMIZU, Akinori KAWACHI, Keiji SAKAI
  • Publication number: 20200277914
    Abstract: In a variable valve control device, a variable valve control system and a method for controlling a variable valve mechanism according to the present invention, An ECM (201) transmits a phase detection value (RA1) computed based on a crank angle signal (CRANK) and a cam angle signal (CAM) to a VTC control unit (202) via a communication network (211), and VTC control unit (202) computes a phase detection value (RA2) based on a motor angle signal (MAS), controls a variable valve timing mechanism (114) based on phase detection value (RA2) in the transient state of an internal combustion engine, and controls variable valve timing mechanism (114) based on phase detection value (RA1) in the steady state of the internal combustion engine.
    Type: Application
    Filed: September 18, 2018
    Publication date: September 3, 2020
    Inventors: Nobuhiko MATSUO, Hirokazu SHIMIZU
  • Patent number: 10710793
    Abstract: Provided is a simple-structured aerosol nozzle capable of mixing a plurality of contents uniformly and ejecting the same, and moreover leaving only a small amount of contents inside the flow passage after ejection. An aerosol nozzle 100 includes a nozzle lower part 120 that fits with a plurality of stems 103, and a nozzle upper part 110. At least one of an upper abutment surface 122 of the nozzle lower part 120 and a lower abutment surface 112 of the nozzle upper part 110 has a converging groove 126 that forms a plurality of converging passages 131 that connect openings of stem-communicated passages 123 and an opening of a mixing passage 111 when the nozzle lower part 120 and nozzle upper part 110 are fitted with each other.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: July 14, 2020
    Assignee: TOYO AEROSOL INDUSTRY CO., LTD.
    Inventor: Hirokazu Shimizu
  • Patent number: 10688986
    Abstract: An automatic parking control device enables operations after the completion of parking to be made based on a users' general behavior required at the time of parking of a vehicle. This automatic parking control device is provided with a processing unit, which calculates a parking guide path of the host vehicle from an image of a camera and an output signal of a distance measuring sensor and performs a drive system stop mode as preliminarily set with respect to the vehicle depending on the parking mode given when it is found that the vehicle has been parked in a parking space along the guide path.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: June 23, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hirokazu Shimizu, Nariaki Takehara
  • Patent number: 10655507
    Abstract: In a control device and a control method for an internal combustion engine according to the present invention, when a crank angle signal is behaving abnormally, a phase angle of an exhaust camshaft relative to a crankshaft is set to a reference phase angle, and a phase angle of an intake camshaft relative to the crankshaft is determined based on an intake cam signal and an exhaust cam signal. Furthermore, the phase difference between the exhaust cam signal generated when the relative phase angle of the exhaust camshaft is set to the reference phase angle and the intake cam signal generated when the relative phase angle of the intake camshaft is set to a target value is greater after a start-up of the internal combustion engine than during the start-up.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: May 19, 2020
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventor: Hirokazu Shimizu
  • Patent number: 10472163
    Abstract: To provide a fixing plate for an aerosol container that allows positioning thereof, fittable to a mounting cup, applicable to aerosol containers without changes in shape, and fittable to the mounting cup without displacing out of position relative to the mounting cup. The fixing plate (100) for an aerosol container is mounted to a mounting cup (310) having two stems (320) protruding therefrom and is used for positioning of an exterior component. The fixing plate is formed in a cylindrical shape fittable to the mounting cup (310), includes, on an inner circumferential side thereof, container positioning unit and container lock unit for positioning and retaining and fitting of the fixing plate (100) and the mounting cup (310), and includes, on an outer circumferential side thereof, exterior component positioning unit and exterior component lock unit for positioning and retaining and fitting of the fixing plate (100) and the exterior component (200).
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: November 12, 2019
    Assignee: TOYO AEROSOL INDUSTRY CO., LTD.
    Inventors: Hirokazu Shimizu, Nobuyuki Hanai
  • Patent number: 10455172
    Abstract: Conventional image sensors cannot generate highly-accurate correction values in a short time.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: October 22, 2019
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventor: Hirokazu Shimizu
  • Patent number: 10429850
    Abstract: Provided are an automatic parking apparatus and the like, which are capable of easily setting a target parking area and moving or guiding a vehicle to the target parking area. The automatic parking apparatus includes: a monitor device configured to photograph surroundings of an own vehicle; an image display device including: a display screen configured to display an image obtained through the photographing by the monitor device; an image generation unit configured to generate an image to be displayed on the display screen from the image obtained through the photographing, and to display the image; and an input device; and a vehicle control device configured to control the own vehicle to move to a parking area, which is designated through the input device with respect to the displayed image.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: October 1, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yoichi Kato, Hirokazu Shimizu, Nariaki Takehara
  • Publication number: 20190249574
    Abstract: In a control device and a control method for an internal combustion engine according to the present invention, when a crank angle signal is behaving abnormally, a phase angle of an exhaust camshaft relative to a crankshaft is set to a reference phase angle, and a phase angle of an intake camshaft relative to the crankshaft is determined based on an intake cam signal and an exhaust cam signal. Furthermore, the phase difference between the exhaust cam signal generated when the relative phase angle of the exhaust camshaft is set to the reference phase angle and the intake cam signal generated when the relative phase angle of the intake camshaft is set to a target value is greater after a start-up of the internal combustion engine than during the start-up.
    Type: Application
    Filed: December 15, 2017
    Publication date: August 15, 2019
    Inventor: Hirokazu SHIMIZU
  • Patent number: 10183802
    Abstract: A shoulder cover for an aerosol container that can be readily positioned and attached to the aerosol container having two stems. The shoulder cover is attached to a mounting cup that includes an upper tier part having two stems protruding from a top wall thereof and having long sides and short sides, and a cylindrical part. The shoulder cover includes an outer circumferential wall, a roof wall, a cylindrical wall extending downward from the roof wall, and locking structure provided to the cylindrical wall and retaining the shoulder cover by engaging with the cylindrical part of the mounting cup, and positioning structure for fitting with the upper tier part to thereby position a mating position of the shoulder cover is formed.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: January 22, 2019
    Assignee: TOYO AEROSOL INDUSTRY CO., LTD.
    Inventors: Ken Ogata, Hirokazu Shimizu, Toru Toma, Yoshiyuki Kakuta, Kotaro Fujiwara
  • Publication number: 20190007634
    Abstract: Conventional image sensors cannot generate highly-accurate correction values in a short time.
    Type: Application
    Filed: May 21, 2018
    Publication date: January 3, 2019
    Applicant: Renesas Electronics Corporation
    Inventor: Hirokazu SHIMIZU
  • Publication number: 20180229921
    Abstract: To provide a fixing plate for an aerosol container that allows positioning thereof, fittable to a mounting cup, applicable to aerosol containers without changes in shape, and fittable to the mounting cup without displacing out of position relative to the mounting cup. The fixing plate (100) for an aerosol container is mounted to a mounting cup (310) having two stems (320) protruding therefrom and is used for positioning of an exterior component. The fixing plate is formed in a cylindrical shape fittable to the mounting cup (310), includes, on an inner circumferential side thereof, container positioning unit and container lock unit for positioning and retaining and fitting of the fixing plate (100) and the mounting cup (310), and includes, on an outer circumferential side thereof, exterior component positioning unit and exterior component lock unit for positioning and retaining and fitting of the fixing plate (100) and the exterior component (200).
    Type: Application
    Filed: April 16, 2018
    Publication date: August 16, 2018
    Applicant: TOYO AEROSOL INDUSTRY CO., LTD.
    Inventors: Hirokazu Shimizu, Nobuyuki Hanai
  • Publication number: 20180162630
    Abstract: Provided is a simple-structured aerosol nozzle capable of mixing a plurality of contents uniformly and ejecting the same, and moreover leaving only a small amount of contents inside the flow passage after ejection. An aerosol nozzle 100 includes a nozzle lower part 120 that fits with a plurality of stems 103, and a nozzle upper part 110. At least one of an upper abutment surface 122 of the nozzle lower part 120 and a lower abutment surface 112 of the nozzle upper part 110 has a converging groove 126 that forms a plurality of converging passages 131 that connect openings of stem-communicated passages 123 and an opening of a mixing passage 111 when the nozzle lower part 120 and nozzle upper part 110 are fitted with each other.
    Type: Application
    Filed: February 6, 2018
    Publication date: June 14, 2018
    Applicant: TOYO AEROSOL INDUSTRY CO., LTD.
    Inventor: Hirokazu Shimizu
  • Publication number: 20180129218
    Abstract: Provided are an automatic parking apparatus and the like, which are capable of easily setting a target parking area and moving or guiding a vehicle to the target parking area. The automatic parking apparatus includes: a monitor device configured to photograph surroundings of an own vehicle; an image display device including: a display screen configured to display an image obtained through the photographing by the monitor device; an image generation unit configured to generate an image to be displayed on the display screen from the image obtained through the photographing, and to display the image; and an input device; and a vehicle control device configured to control the own vehicle to move to a parking area, which is designated through the input device with respect to the displayed image.
    Type: Application
    Filed: May 3, 2017
    Publication date: May 10, 2018
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yoichi KATO, Hirokazu SHIMIZU, Nariaki TAKEHARA
  • Patent number: 9938070
    Abstract: Provided is a nozzle cap for aerosol container that can be used for cleaning a nozzle of an aerosol container that has a plurality of stems, and preventing the nozzle from being pushed down. The nozzle cap includes a plurality of bar-like pieces 11 that can be inserted from ejection ports 24 of a nozzle 20 into ejection-side communication passages 23a at least until distal ends 11a reach upper ends 22d of stem-like communication passages 22a, and a lower protrusion 14 that prevents the nozzle from being pushed down by abutting on a cover member 30 below ejection tubes 23 of the nozzle 20 when the bar-like pieces 11 are inserted into the ejection-side communication passages 23a.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: April 10, 2018
    Assignee: TOYO AEROSOL INDUSTRY CO., LTD.
    Inventors: Ken Ogata, Hirokazu Shimizu, Toru Toma