Patents by Inventor Kazuo Hanada
Kazuo Hanada 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).
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Publication number: 20240360914Abstract: A fluid control valve includes a casing, and a piezo actuator that is housed in the casing and held at one end side of the casing to extend toward another end side of the casing, where the casing has a vent hole.Type: ApplicationFiled: April 22, 2024Publication date: October 31, 2024Inventors: Kazuo HANADA, Akihiro TAGUCHI, Kenta TAYAMA
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Patent number: 10073014Abstract: To provide an exhaust gas sampling mechanism which can prevent condensed water droplets in exhaust gas from being sampled by a sampling probe and advantageously sample only the gas components of the exhaust gas to be measured, thereby maintaining a high response speed in analyzing the exhaust gas, the exhaust gas sampling mechanism includes the sampling probe disposed in a flow path through which the exhaust gas flows, for sampling the exhaust gas; and a gas-permeable cover which covers at least an upstream portion or a lateral surface portion of the sampling probe in the flow path, and has a water droplet removing structure.Type: GrantFiled: May 15, 2015Date of Patent: September 11, 2018Assignee: Horiba Ltd.Inventors: Shun Fukami, Yoshihisa Onda, Kazuo Hanada
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Patent number: 9568411Abstract: The present invention is one that, even while cooling exhaust gas without dilution, makes it possible to accurately measure particle concentration, and provided with: a particle concentration measurement device; a sampling cooling pipe that cools the exhaust gas collected from an exhaust gas transfer pipe to a measurable temperature of the particle concentration measurement device without dilution, and introduces the cooled exhaust gas into the particle concentration measurement device; a temperature sensor that detects temperature of the exhaust gas flowing into an exhaust gas inlet; and a calculation device that, from the detected temperature by the temperature sensor and the temperature of the exhaust gas introduced into the particle concentration measurement device, corrects measured particle concentration by the particle concentration measurement device in real time to calculate the particle concentration of the exhaust gas flowing through the exhaust gas transfer pipe.Type: GrantFiled: September 28, 2015Date of Patent: February 14, 2017Assignee: Horiba, Ltd.Inventors: Ichiro Asano, Masayoshi Shinohara, Kazuo Hanada
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Publication number: 20160018309Abstract: The present invention is one that, even while cooling exhaust gas without dilution, makes it possible to accurately measure particle concentration, and provided with: a particle concentration measurement device; a sampling cooling pipe that cools the exhaust gas collected from an exhaust gas transfer pipe to a measurable temperature of the particle concentration measurement device without dilution, and introduces the cooled exhaust gas into the particle concentration measurement device; a temperature sensor that detects temperature of the exhaust gas flowing into an exhaust gas inlet; and a calculation device that, from the detected temperature by the temperature sensor and the temperature of the exhaust gas introduced into the particle concentration measurement device, corrects measured particle concentration by the particle concentration measurement device in real time to calculate the particle concentration of the exhaust gas flowing through the exhaust gas transfer pipe.Type: ApplicationFiled: September 28, 2015Publication date: January 21, 2016Inventors: Ichiro Asano, Masayoshi Shinohara, Kazuo Hanada
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Publication number: 20150330875Abstract: To provide an exhaust gas sampling mechanism which can prevent condensed water droplets in exhaust gas from being sampled by a sampling probe and advantageously sample only the gas components of the exhaust gas to be measured, thereby maintaining a high response speed in analyzing the exhaust gas, the exhaust gas sampling mechanism includes the sampling probe disposed in a flow path through which the exhaust gas flows, for sampling the exhaust gas; and a gas-permeable cover which covers at least an upstream portion or a lateral surface portion of the sampling probe in the flow path, and has a water droplet removing structure.Type: ApplicationFiled: May 15, 2015Publication date: November 19, 2015Inventors: Shun FUKAMI, Yoshihisa ONDA, Kazuo HANADA
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Patent number: 9188506Abstract: The present invention is one that, even while cooling exhaust gas without dilution, makes it possible to accurately measure particle concentration, and provided with: a particle concentration measurement device; a sampling cooling pipe that cools the exhaust gas collected from an exhaust gas transfer pipe to a measurable temperature of the particle concentration measurement device without dilution, and introduces the cooled exhaust gas into the particle concentration measurement device; a temperature sensor that detects temperature of the exhaust gas flowing into an exhaust gas inlet; and a calculation device that, from the detected temperature by the temperature sensor and the temperature of the exhaust gas introduced into the particle concentration measurement device, corrects measured particle concentration by the particle concentration measurement device in real time to calculate the particle concentration of the exhaust gas flowing through the exhaust gas transfer pipe.Type: GrantFiled: September 13, 2011Date of Patent: November 17, 2015Assignee: Horiba, Ltd.Inventors: Ichiro Asano, Masayoshi Shinohara, Kazuo Hanada
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Patent number: 9170180Abstract: To improve an offset accuracy in a particle number counting apparatus (100) condensing a working liquid with sample particles, the apparatus including: a porous member (22) in which a flow path (23) is passed through to form an inlet (23a) at a lower side and an outlet (23b) at an upper side thereof so that the working liquid is supplied to a predetermined section of the porous member so as to be impregnated into the entire part of the porous member; and a housing (21) having an accommodating space for accommodating the porous member (22), wherein a gap (S) is formed between an outer peripheral surface (22a) of the porous member (22) and an inner peripheral surface (21b) of the accommodating space of the housing (21) at least in an upper side than the predetermined section to be supplied with the working liquid.Type: GrantFiled: December 21, 2012Date of Patent: October 27, 2015Assignee: Horiba, Ltd.Inventors: Masayoshi Shinohara, Yoshinori Otsuki, Kenji Kondo, Kazuo Hanada, Steve Kerrigan
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Patent number: 9140631Abstract: A method of measuring characteristics of a critical orifice type constant flow rate instrument is applied to a dilution mechanism including dilution units in series. Diluent gas of one dilution unit and diluent gas of the other dilution unit are kept flowing in a derivation flow passage for deriving redundant gas of the corresponding one dilution unit in a manner that the total flow rate thereof is equal to a prescribed constant flow rate and that the flow rate of the diluent gas from the corresponding dilution unit is equal to the flow rate in use. The flow rate characteristics of the critical orifice type constant flow rate instrument are measured based on at least an upstream side pressure of the critical orifice type constant flow rate instrument provided in the derivation flow passage at this time.Type: GrantFiled: January 12, 2012Date of Patent: September 22, 2015Assignee: HORIBA, LTD.Inventors: Yoshinori Otsuki, Masayoshi Shinohara, Kazuo Hanada
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Patent number: 8528424Abstract: In a gas analyzer 3 and a gas analyzing system 100 adapted to introduce and analyze a part of a measurement target gas flowing through a measurement target gas flow passage 12, in order to ensure accuracy in controlling the measurement target gas flowing through the measurement target gas flow passage 12 and accuracy in its own and other measurements, there are provided an object measurement device 35 adapted to acquire a part of the measurement target gas introduced from the measurement target gas flow passage 12 so as to measure a quantity etc. of a measurement object contained in the measurement target gas, an acquired gas flow rate measurement device 34 adapted to measure a flow rate of the measurement target gas acquired by the object measurement device 35, and a gas supply device 36 adapted to supply another gas of a flow rate equal to the gas flow rate measured by the acquired gas flow rate measurement device 34 to a portion downstream of a shunt point in the measurement target gas flow passage 12.Type: GrantFiled: July 22, 2011Date of Patent: September 10, 2013Assignee: Horiba, Ltd.Inventors: Yoshinori Otsuki, Masayoshi Shinohara, Kazuo Hanada
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Publication number: 20130174641Abstract: The present invention is one that, even while cooling exhaust gas without dilution, makes it possible to accurately measure particle concentration, and provided with: a particle concentration measurement device; a sampling cooling pipe that cools the exhaust gas collected from an exhaust gas transfer pipe to a measurable temperature of the particle concentration measurement device without dilution, and introduces the cooled exhaust gas into the particle concentration measurement device; a temperature sensor that detects temperature of the exhaust gas flowing into an exhaust gas inlet; and a calculation device that, from the detected temperature by the temperature sensor and the temperature of the exhaust gas introduced into the particle concentration measurement device, corrects measured particle concentration by the particle concentration measurement device in real time to calculate the particle concentration of the exhaust gas flowing through the exhaust gas transfer pipe.Type: ApplicationFiled: September 13, 2011Publication date: July 11, 2013Applicant: HORIBA, LTD.Inventors: Ichiro Asano, Masayoshi Shinohara, Kazuo Hanada
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Patent number: 8387447Abstract: An object of this invention is to improve resistance to heat and to increase a measurable range of a pressure without increasing a cost. In order to attain the object, a first unit arranged near an exhaust gas pipe and a second unit arranged separately from the first unit and connected to the first unit through a connecting pipe are provided, and the first unit has an exhaust gas flow channel from one end of which an exhaust gas is introduced, an orifice part arranged in a midst of the exhaust gas flow channel, a pressure rising check valve of a mechanically operating type that is connected to a downstream side of the orifice part in the exhaust gas flow channel, and a dilution gas flow channel that is connected to a downstream side of the orifice part in the exhaust gas flow channel so that the diluted exhaust gas diluted by the dilution gas is derived from the other end of the exhaust gas flow channel.Type: GrantFiled: February 1, 2011Date of Patent: March 5, 2013Assignee: Horiba, Ltd.Inventors: Kazuo Hanada, Yoshinori Otsuki, Masayoshi Shinohara
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Publication number: 20120174989Abstract: A method of measuring characteristics of a critical orifice type constant flow rate instrument is applied to a dilution mechanism including dilution units in series. Diluent gas of one dilution unit and diluent gas of the other dilution unit are kept flowing in a derivation flow passage for deriving redundant gas of the corresponding one dilution unit in a manner that the total flow rate thereof is equal to a prescribed constant flow rate and that the flow rate of the diluent gas from the corresponding dilution unit is equal to the flow rate in use. The flow rate characteristics of the critical orifice type constant flow rate instrument are measured based on at least an upstream side pressure of the critical orifice type constant flow rate instrument provided in the derivation flow passage at this time.Type: ApplicationFiled: January 12, 2012Publication date: July 12, 2012Applicant: HORIBA, LTD.Inventors: Yoshinori OTSUKI, Masayoshi SHINOHARA, Kazuo HANADA
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Publication number: 20120017666Abstract: In a gas analyzer 3 and a gas analyzing system 100 adapted to introduce and analyze a part of a measurement target gas flowing through a measurement target gas flow passage 12, in order to ensure accuracy in controlling the measurement target gas flowing through the measurement target gas flow passage 12 and accuracy in its own and other measurements, there are provided an object measurement device 35 adapted to acquire a part of the measurement target gas introduced from the measurement target gas flow passage 12 so as to measure a quantity etc. of a measurement object contained in the measurement target gas, an acquired gas flow rate measurement device 34 adapted to measure a flow rate of the measurement target gas acquired by the object measurement device 35, and a gas supply device 36 adapted to supply another gas of a flow rate equal to the gas flow rate measured by the acquired gas flow rate measurement device 34 to a portion downstream of a shunt point in the measurement target gas flow passage 12.Type: ApplicationFiled: July 22, 2011Publication date: January 26, 2012Applicant: HORIBA, LTD.Inventors: Yoshinori Otsuki, Masayoshi Shinohara, Kazuo Hanada
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Publication number: 20110192145Abstract: An object of this invention is to improve resistance to heat and to increase a measurable range of a pressure without increasing a cost. In order to attain the object, a first unit arranged near an exhaust gas pipe and a second unit arranged separately from the first unit and connected to the first unit through a connecting pipe are provided, and the first unit has an exhaust gas flow channel from one end of which an exhaust gas is introduced, an orifice part arranged in a midst of the exhaust gas flow channel, a pressure rising check valve of a mechanically operating type that is connected to a downstream side of the orifice part in the exhaust gas flow channel, and a dilution gas flow channel that is connected to a downstream side of the orifice part in the exhaust gas flow channel so that the diluted exhaust gas diluted by the dilution gas is derived from the other end of the exhaust gas flow channel.Type: ApplicationFiled: February 1, 2011Publication date: August 11, 2011Applicant: HORIBA, LTD.Inventors: Kazuo Hanada, Yoshinori Otsuki, Masayoshi Shinohara