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: 11873235Abstract: 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: GrantFiled: June 18, 2019Date of Patent: January 16, 2024Assignees: AD'ALL CO., LTD., UNITIKA LTD.Inventors: Tomoyasu Nakano, Hirokazu Shimizu, Akinori Kawachi, Keiji Sakai
-
Publication number: 20230282423Abstract: 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: ApplicationFiled: March 1, 2023Publication date: September 7, 2023Applicant: TAIYO YUDEN CO., LTD.Inventors: Norihiro ARAI, Kazumichi HIROI, Hirokazu SHIMIZU
-
Patent number: 11391234Abstract: 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: GrantFiled: September 18, 2018Date of Patent: July 19, 2022Assignee: Hitachi Astemo, Ltd.Inventors: Nobuhiko Matsuo, Hirokazu Shimizu
-
Publication number: 20210340887Abstract: 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: ApplicationFiled: November 13, 2019Publication date: November 4, 2021Inventors: Masaki KOSUDA, Hirokazu SHIMIZU, Nobuhiko MATSUO
-
Publication number: 20210261442Abstract: 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: ApplicationFiled: June 18, 2019Publication date: August 26, 2021Inventors: Tomoyasu NAKANO, Hirokazu SHIMIZU, Keiji SAKAI
-
Publication number: 20210261441Abstract: 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: ApplicationFiled: June 18, 2019Publication date: August 26, 2021Inventors: Tomoyasu NAKANO, Hirokazu SHIMIZU, Akinori KAWACHI, Keiji SAKAI
-
Publication number: 20200277914Abstract: 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: ApplicationFiled: September 18, 2018Publication date: September 3, 2020Inventors: Nobuhiko MATSUO, Hirokazu SHIMIZU
-
Patent number: 10710793Abstract: 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: GrantFiled: February 6, 2018Date of Patent: July 14, 2020Assignee: TOYO AEROSOL INDUSTRY CO., LTD.Inventor: Hirokazu Shimizu
-
Patent number: 10688986Abstract: 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: GrantFiled: February 11, 2016Date of Patent: June 23, 2020Assignee: Mitsubishi Electric CorporationInventors: Hirokazu Shimizu, Nariaki Takehara
-
Patent number: 10655507Abstract: 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: GrantFiled: December 15, 2017Date of Patent: May 19, 2020Assignee: Hitachi Automotive Systems, Ltd.Inventor: Hirokazu Shimizu
-
Patent number: 10472163Abstract: 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: GrantFiled: April 16, 2018Date of Patent: November 12, 2019Assignee: TOYO AEROSOL INDUSTRY CO., LTD.Inventors: Hirokazu Shimizu, Nobuyuki Hanai
-
Patent number: 10455172Abstract: Conventional image sensors cannot generate highly-accurate correction values in a short time.Type: GrantFiled: May 21, 2018Date of Patent: October 22, 2019Assignee: RENESAS ELECTRONICS CORPORATIONInventor: Hirokazu Shimizu
-
Patent number: 10429850Abstract: 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: GrantFiled: May 3, 2017Date of Patent: October 1, 2019Assignee: Mitsubishi Electric CorporationInventors: Yoichi Kato, Hirokazu Shimizu, Nariaki Takehara
-
Publication number: 20190249574Abstract: 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: ApplicationFiled: December 15, 2017Publication date: August 15, 2019Inventor: Hirokazu SHIMIZU
-
Patent number: 10183802Abstract: 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: GrantFiled: November 25, 2015Date of Patent: January 22, 2019Assignee: TOYO AEROSOL INDUSTRY CO., LTD.Inventors: Ken Ogata, Hirokazu Shimizu, Toru Toma, Yoshiyuki Kakuta, Kotaro Fujiwara
-
Publication number: 20190007634Abstract: Conventional image sensors cannot generate highly-accurate correction values in a short time.Type: ApplicationFiled: May 21, 2018Publication date: January 3, 2019Applicant: Renesas Electronics CorporationInventor: Hirokazu SHIMIZU
-
Publication number: 20180229921Abstract: 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: ApplicationFiled: April 16, 2018Publication date: August 16, 2018Applicant: TOYO AEROSOL INDUSTRY CO., LTD.Inventors: Hirokazu Shimizu, Nobuyuki Hanai
-
Publication number: 20180162630Abstract: 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: ApplicationFiled: February 6, 2018Publication date: June 14, 2018Applicant: TOYO AEROSOL INDUSTRY CO., LTD.Inventor: Hirokazu Shimizu
-
Publication number: 20180129218Abstract: 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: ApplicationFiled: May 3, 2017Publication date: May 10, 2018Applicant: Mitsubishi Electric CorporationInventors: Yoichi KATO, Hirokazu SHIMIZU, Nariaki TAKEHARA
-
Patent number: 9938070Abstract: 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: GrantFiled: November 25, 2015Date of Patent: April 10, 2018Assignee: TOYO AEROSOL INDUSTRY CO., LTD.Inventors: Ken Ogata, Hirokazu Shimizu, Toru Toma