Patents by Inventor Masahiro Nakane
Masahiro Nakane 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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Patent number: 11506603Abstract: The optical cell of an elongated shape has an inner space into which gas is introduced and includes: a cell main body forming the inner space; a manifold member being separably connected to an outer surface of the cell main body extending in a longitudinal direction; and a heating mechanism heating the manifold member, in which the cell main body has a through hole penetrating from the outer surface into the inner space, and the manifold member has a gas introduction path extending along the longitudinal direction and guiding the gas, which has been taken in from the outside, from one side to another side in the longitudinal direction and then guiding the gas to the inner space through the through hole.Type: GrantFiled: May 21, 2019Date of Patent: November 22, 2022Assignee: HORIBA, LTD.Inventor: Masahiro Nakane
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Patent number: 10551299Abstract: To provide a multipass cell permitting a reduction in a volume of an inner space into which sample gas is introduced, there are provided: a cell main body with the inner space into which the sample gas is introduced; and a pair of mirrors provided oppositely to each other in the inner space, wherein light incident from an incidence window of the cell main body is subjected to multireflection between the pair of mirrors and is emitted from an emission window of the cell main body, wherein: each of the mirrors is shaped such that light spots formed on a reflecting surface of each of the mirrors are scattered in an elongated region of a predetermined width through the light multireflection; and each of the mirrors is formed into an elongated shape along a longitudinal direction of the elongated region.Type: GrantFiled: October 3, 2018Date of Patent: February 4, 2020Assignee: HORIBA, LTD.Inventors: Kyoji Shibuya, Masahiro Nakane
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Publication number: 20190360931Abstract: The optical cell of an elongated shape has an inner space into which gas is introduced and includes: a cell main body forming the inner space; a manifold member being separably connected to an outer surface of the cell main body extending in a longitudinal direction; and a heating mechanism heating the manifold member, in which the cell main body has a through hole penetrating from the outer surface into the inner space, and the manifold member has a gas introduction path extending along the longitudinal direction and guiding the gas, which has been taken in from the outside, from one side to another side in the longitudinal direction and then guiding the gas to the inner space through the through hole.Type: ApplicationFiled: May 21, 2019Publication date: November 28, 2019Applicant: HORIBA, LTD.Inventor: Masahiro NAKANE
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Publication number: 20190101487Abstract: To provide a multipass cell permitting a reduction in a volume of an inner space into which sample gas is introduced, there are provided: a cell main body with the inner space into which the sample gas is introduced; and a pair of mirrors provided oppositely to each other in the inner space, wherein light incident from an incidence window of the cell main body is subjected to multireflection between the pair of mirrors and is emitted from an emission window of the cell main body, wherein: each of the mirrors is shaped such that light spots formed on a reflecting surface of each of the mirrors are scattered in an elongated region of a predetermined width through the light multireflection; and each of the mirrors is formed into an elongated shape along a longitudinal direction of the elongated region.Type: ApplicationFiled: October 3, 2018Publication date: April 4, 2019Applicant: HORIBA, Ltd.Inventors: Kyoji SHIBUYA, Masahiro NAKANE
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Patent number: 9885695Abstract: In order to be able to prevent analysis accuracy from being reduced by a backward flow of sample gas from dead volume in a cleaning mechanism into a cell at the time of analysis, a gas analysis device has an analysis part that analyzes the sample gas introduced into the cell, gas ports that are arranged toward predetermined regions of gas contact surfaces in the cell, and a piping mechanism that connects the gas ports to a predetermined purge gas source, and blows purge gas from the gas ports toward the predetermined regions at the time of purging. The gas analysis device also has a switching part that switches a connecting destination of the piping mechanism from the purge gas source to a predetermined suction part, and at the time of introducing or analyzing the sample gas, connects the gas ports to the suction source.Type: GrantFiled: February 9, 2012Date of Patent: February 6, 2018Assignee: Horiba, Ltd.Inventors: Shigeru Nakatani, Kenji Hara, Montajir Rahman, Masahiro Nakane
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Patent number: 9335235Abstract: An exhaust gas sampling device is intended to heat or cool a temperature of sampled exhaust gas flowing through a sampling line to a desired temperature in accordance with various exhaust gas conditions and usage conditions of the sampling line irrespective of a temperature of the exhaust gas flowing through an exhaust pipe, and includes the sampling line for sampling the exhaust gas to be introduced into an analyzing instrument; a plurality of heating parts provided along the sampling line from an upstream side to a downstream side for heating the exhaust gas flowing through the sampling line; and a temperature control part for individually setting set temperatures of the plurality of heating parts using the temperature of the exhaust gas in the exhaust pipe and a target temperature of the exhaust gas in an outlet side of the heating part located in the most downstream as parameters.Type: GrantFiled: February 14, 2013Date of Patent: May 10, 2016Assignee: HORIBA, LTD.Inventors: Montajir Rahman, Masahiro Nakane, Kenji Hara, Shigeru Nakatani
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Publication number: 20140002823Abstract: In order to be able to prevent analysis accuracy from being reduced by a backward flow of sample gas from dead volume in a cleaning mechanism into a cell at the time of analysis, a gas analysis device has an analysis part that analyzes the sample gas introduced into the cell, gas ports that are arranged toward predetermined regions of gas contact surfaces in the cell, and a piping mechanism that connects the gas ports to a predetermined purge gas source, and blows purge gas from the gas ports toward the predetermined regions at the time of purging. The gas analysis device also has a switching part that switches a connecting destination of the piping mechanism from the purge gas source to a predetermined suction part, and at the time of introducing or analyzing the sample gas, connects the gas ports to the suction source.Type: ApplicationFiled: February 9, 2012Publication date: January 2, 2014Applicant: HORIBA, LTD.Inventors: Shigeru Nakatani, Kenji Hara, Montajir Rahman, Masahiro Nakane
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Patent number: 8564779Abstract: This invention makes it possible to measure a concentration of a gas component having the adsorption even thought the concentration is low, and to improve a response speed of the measurement of the concentration, and comprises a body that has an introduction port to introduce a sample gas into a measurement cell, a laser light irradiation part that irradiates the laser light on the measurement cell, a heating pipe that applies heat to the sample gas introduced into the introduction port, a flow rate limit part that makes the sample gas at a negative pressure and that introduces the negative-pressurized heated sample gas into the body, and a negative pressure pump that keeps inside of the measurement cell and a flow channel from a downstream side of the flow rate limit part to the measurement cell at the negative pressure.Type: GrantFiled: May 17, 2011Date of Patent: October 22, 2013Assignee: Horiba, Ltd.Inventors: Kenji Hara, Montajir Rahman, Shigeru Nakatani, Masahiro Nakane
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Publication number: 20110285998Abstract: This invention makes it possible to measure a concentration of a gas component having the adsorption even thought the concentration is low, and to improve a response speed of the measurement of the concentration, and comprises a body that has an introduction port to introduce a sample gas into a measurement cell, a laser light irradiation part that irradiates the laser light on the measurement cell, a heating pipe that applies heat to the sample gas introduced into the introduction port, a flow rate limit part that makes the sample gas at a negative pressure and that introduces the negative-pressurized heated sample gas into the body, and a negative pressure pump that keeps inside of the measurement cell and a flow channel from a downstream side of the flow rate limit part to the measurement cell at the negative pressure.Type: ApplicationFiled: May 17, 2011Publication date: November 24, 2011Applicant: HORIBA, LTD.Inventors: Kenji Hara, Montajir Rahman, Shigeru Nakatani, Masahiro Nakane