Patents by Inventor Kenji Nagatomo
Kenji Nagatomo 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: 20240038513Abstract: A first searcher executes a primary search with respect to a primary library based on a sample mass spectrum. The primary library includes a plurality of standard mass spectra. When a judging unit judges that a search range is to be enlarged, a second searcher executes a secondary search with respect to a secondary library based on the sample mass spectrum. The secondary library includes a plurality of predicted mass spectra produced from a plurality of molecular structures.Type: ApplicationFiled: July 26, 2023Publication date: February 1, 2024Inventors: Ayumi Kubo, Masaaki Ubukata, Kenji Nagatomo
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Publication number: 20230274923Abstract: A partial structure estimation apparatus is configured to generate a first explanatory variable by performing composition estimation for each peak in a mass spectrum acquired from a sample, and to generate a second explanatory variable by performing composition estimation for each peak interval in the mass spectrum. The partial structure estimation apparatus is further configured to then estimate a partial structure as an objective variable based on the first explanatory variable and the second explanatory variable. In a partial structure estimation model generation apparatus, a partial structure estimation model is generated through machine learning using a training data set.Type: ApplicationFiled: February 23, 2023Publication date: August 31, 2023Inventors: Ayumi Kubo, Masaaki Ubukata, Kenji Nagatomo
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Publication number: 20220375737Abstract: A composition estimation target peak is selected from a mass spectrum of a sample, and a group of measured isotope peaks related to the composition estimation target peak is selected. A composition candidate for the sample is estimated based on the composition estimation target peak. A distribution of a theoretical isotope peak corresponding to the composition candidate is calculated. Presence or absence of an adduct ion or a desorbed ion in the sample is determined based on a first mass difference between isotopes in a distribution of the measured isotope peaks and a second mass difference between isotopes in the distribution of the theoretical isotope peak.Type: ApplicationFiled: May 17, 2022Publication date: November 24, 2022Inventors: Kenji Nagatomo, Masaaki Ubukata, Ayumi Kubo
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Patent number: 11460332Abstract: Gas meter includes shutoff valve, return unit, flow rate measurer, display, communication unit that communicates with an outside, controller, area information setting unit, and area information comparator. The gas meter compares, by area information comparator, a preset area information held in area information setting unit with a specified value of area information added to a remote shutoff instruction received by communication unit, and when the preset area information and the specified value of the added area information match, shutoff valve is closed.Type: GrantFiled: August 23, 2019Date of Patent: October 4, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Kenji Nagatomo, Yasuo Koba, Ryuji Iwamoto, Mitsunobu Enomoto
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Publication number: 20210270655Abstract: Gas meter includes shutoff valve, return unit, flow rate measurer, display, communication unit that communicates with an outside, controller, area information setting unit, and area information comparator. The gas meter compares, by area information comparator, a preset area information held in area information setting unit with a specified value of area information added to a remote shutoff instruction received by communication unit, and when the preset area information and the specified value of the added area information match, shutoff valve is closed.Type: ApplicationFiled: August 23, 2019Publication date: September 2, 2021Inventors: KENJI NAGATOMO, YASUO KOBA, RYUJI IWAMOTO, MITSUNOBU ENOMOTO
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Patent number: 10804086Abstract: There is provided a mass spectrometry data processor allowing for easy selection of a compositional formula for a sample component to be analyzed (analyte) even in general mass spectrometry applications. The mass spectrometry data processor is used to perform a qualitative analysis of the sample component based both on a first mass spectrum obtained by ionizing the sample component by a soft ionization method and on a second mass spectrum generated by cleavage of the sample component.Type: GrantFiled: December 4, 2018Date of Patent: October 13, 2020Assignee: JEOL Ltd.Inventors: Kenji Nagatomo, Masaaki Ubukata, Ayumi Kubo
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Publication number: 20190172695Abstract: There is provided a mass spectrometry data processor allowing for easy selection of a compositional formula for a sample component to be analyzed (analyte) even in general mass spectrometry applications. The mass spectrometry data processor is used to perform a qualitative analysis of the sample component based both on a first mass spectrum obtained by ionizing the sample component by a soft ionization method and on a second mass spectrum generated by cleavage of the sample component.Type: ApplicationFiled: December 4, 2018Publication date: June 6, 2019Inventors: Kenji Nagatomo, Masaaki Ubukata, Ayumi Kubo
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Patent number: 9080902Abstract: A gas meter of the present invention includes a flow measuring section for measuring a flow value of a gas flowing through a fluid passage connected to a gas instrument at each specified time interval; a measurement flow memory for storing the measured flow value; and a fuel cell determiner section for determining that the instrument using a gas is a fuel cell, when a condition A and a condition B are satisfied, in which the condition A is such that a maximum value of determination target flow values is equal to or less than a second predetermined value, the determination target flow values being a predetermined number of flow values measured before and after a reference flow value which is equal to or greater than a first predetermined value and is closest to the first predetermined value, the determination target flow values being included in stored flow values, and the condition B is such that a difference value derived by subtracting from each of all of the determination target flow values, an average valType: GrantFiled: April 18, 2012Date of Patent: July 14, 2015Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Kenji Nagatomo, Mitsuo Yokohata
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Publication number: 20140069204Abstract: A gas meter of the present invention includes a flow measuring section for measuring a flow value of a gas flowing through a fluid passage connected to a gas instrument at each specified time interval; a measurement flow memory for storing the measured flow value; and a fuel cell determiner section for determining that the instrument using a gas is a fuel cell, when a condition A and a condition B are satisfied, in which the condition A is such that a maximum value of determination target flow values is equal to or less than a second predetermined value, the determination target flow values being a predetermined number of flow values measured before and after a reference flow value which is equal to or greater than a first predetermined value and is closest to the first predetermined value, the determination target flow values being included in stored flow values, and the condition B is such that a difference value derived by subtracting from each of all of the determination target flow values, an average valType: ApplicationFiled: April 18, 2012Publication date: March 13, 2014Applicant: Panasonic CorporationInventors: Kenji Nagatomo, Mitsuo Yokohata
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Patent number: 6855924Abstract: An orthogonal acceleration time-of-flight (oa-TOF) mass spectrometer is offered in which the repeller plate forming the ion reservoir is prevented from being electrically charged. This in turn prevents the mass spectral resolution and sensitivity from deteriorating. The mass spectrometer has an (a) external ion source for producing ions, (b) a space in which the ions are made to stay, (c) the ion reservoir consisting of the repeller plate and grids disposed on the opposite sides of the space to accelerate the ions in a pulsed manner out of the space, (d) a time-of-flight mass spectrometric portion for mass separating the ions taken out of the ion reservoir via its internal grids, (e) an ion detector for detecting the mass-separated ions, and (f) a heater for heating the repeller plate.Type: GrantFiled: November 24, 2003Date of Patent: February 15, 2005Assignee: JEOL Ltd.Inventors: Tatsuji Kobayashi, Kenji Nagatomo, Tetsuichiro Morita
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Publication number: 20040108453Abstract: An orthogonal acceleration time-of-flight (oa-TOF) mass spectrometer is offered in which the repeller plate forming the ion reservoir is prevented from being electrically charged. This in turn prevents the mass spectral resolution and sensitivity from deteriorating. The mass spectrometer has an (a) external ion source for producing ions, (b) a space in which the ions are made to stay, (c) the ion reservoir consisting of the repeller plate and grids disposed on the opposite sides of the space to accelerate the ions in a pulsed manner out of the space, (d) a time-of-flight mass spectrometric portion for mass separating the ions taken out of the ion reservoir via its internal grids, (e) an ion detector for detecting the mass-separated ions, and (e) a heater for heating the repeller plate.Type: ApplicationFiled: November 24, 2003Publication date: June 10, 2004Applicant: JEOL Ltd.Inventors: Tatsuji Kobayashi, Kenji Nagatomo, Tetsuichiro Morita