Patents by Inventor Yukio Nonaka
Yukio Nonaka 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: 11857310Abstract: A physiological parameter processing apparatus includes an input interface section that acquires respiration data produced based on a respiratory gas that is obtained from at least one of a mouth and nose of a subject, and an analyzing section that analyzes in real time the respiration data acquired through the input interface section, and that produces analysis result data which can be displayed in real time.Type: GrantFiled: May 30, 2018Date of Patent: January 2, 2024Assignee: NIHON KOHDEN CORPORATIONInventors: Hironori Kobayashi, Yukio Nonaka, Kazuri Higashi, Takayuki Sugiyama
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Publication number: 20180344206Abstract: A physiological parameter processing apparatus includes an input interface section that acquires respiration data produced based on a respiratory gas that is obtained from at least one of a mouth and nose of a subject, and an analyzing section that analyzes in real time the respiration data acquired through the input interface section, and that produces analysis result data which can be displayed in real time.Type: ApplicationFiled: May 30, 2018Publication date: December 6, 2018Inventors: Hironori KOBAYASHI, Yukio NONAKA, Kazuri HIGASHI, Takayuki SUGIYAMA
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Patent number: 10022084Abstract: An apparatus for determining a respiratory condition, including: a signal acquiring section which is configured to acquire a signal corresponding to a respiratory flow of a subject; a first index producing section which is configured to produce a first index related to the respiratory flow of the subject obtained from the signal; a second index producing section which is configured to produce a second index related to a respiratory demand of the subject predicted from the first index; a third index producing section which is configured to produce a third index related to a respiratory effort of the subject based on the first index and the second index; and an outputting section which is configured to output the third index.Type: GrantFiled: June 26, 2014Date of Patent: July 17, 2018Assignees: NIHON KOHDEN CORPORATION, National University Corporation Chiba UniversityInventors: Yukio Nonaka, Shiroh Isono, Tsuyoshi Shimizu
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Patent number: 9848831Abstract: An apparatus for determining a respiratory condition, the apparatus includes: a signal acquirer which is configured to acquire a signal waveform corresponding to a respiratory flow of a subject; a differential calculator which is configured to acquire a differential waveform which is obtained by performing differentiation of the signal waveform; and a first determiner which is configured to determine that inspiratory flow limitation occurs in the subject, when the differential waveform satisfies a predetermined condition in a portion of the signal waveform, which corresponds to inspiration of the subject.Type: GrantFiled: May 23, 2013Date of Patent: December 26, 2017Assignees: NIHON KOHDEN CORPORATION, NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITYInventors: Yukio Nonaka, Shiroh Isono, Tsuyoshi Shimizu
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Patent number: 9636037Abstract: An electrical impedance measuring apparatus includes: a plurality of electrodes adhered to a periphery of a chest of a living body; a potential measurer configured to perform a process of applying a current to any ones of the electrodes, and measuring potentials by means of other electrodes; an impedance acquirer, based on the applied current and the potentials obtained by the potential measurer, configured to obtain information related to an impedance of each of meshes, a chest section divided into the meshes; and an average value calculator configured to obtain a whole-region average value of impedances of all meshes of the chest section, and configured to obtain an ROI average value of impedances of meshes contained in each of ROIs, a whole region of the chest section segmented into the ROIs.Type: GrantFiled: February 17, 2015Date of Patent: May 2, 2017Assignee: NIHON KOHDEN CORPORATIONInventor: Yukio Nonaka
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Patent number: 9636038Abstract: An electrical impedance measuring apparatus includes: a plurality of electrodes adhered to a periphery of a chest; a potential measurer configured to perform a process of applying a current to any ones of the electrodes, and measuring potentials by means of other electrodes; an impedance acquirer, based on the applied current and the potentials measured by the potential measurer, configured to obtain an impedance of each of meshes, a chest section divided into the meshes; a histogram producer configured to set, in the chest section, at least one ROI including from a ventral side to a dorsal side, and configured to obtain a histogram of an impedance distribution in the ROI; and a producer configured to produce a color impedance distribution map in which amplitudes of the histogram are replaced with corresponding colors.Type: GrantFiled: February 18, 2015Date of Patent: May 2, 2017Assignee: NIHON KOHDEN CORPORATIONInventor: Yukio Nonaka
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Publication number: 20150238116Abstract: An electrical impedance measuring apparatus includes: a plurality of electrodes adhered to a periphery of a chest; a potential measurer configured to perform a process of applying a current to any ones of the electrodes, and measuring potentials by means of other electrodes; an impedance acquirer, based on the applied current and the potentials measured by the potential measurer, configured to obtain an impedance of each of meshes, a chest section divided into the meshes; a histogram producer configured to set, in the chest section, at least one ROI including from a ventral side to a dorsal side, and configured to obtain a histogram of an impedance distribution in the ROI; and a producer configured to produce a color impedance distribution map in which amplitudes of the histogram are replaced with corresponding colors.Type: ApplicationFiled: February 18, 2015Publication date: August 27, 2015Inventor: Yukio NONAKA
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Publication number: 20150238115Abstract: An electrical impedance measuring apparatus includes: a plurality of electrodes adhered to a periphery of a chest of a living body; a potential measurer configured to perform a process of applying a current to any ones of the electrodes, and measuring potentials by means of other electrodes; an impedance acquirer, based on the applied current and the potentials obtained by the potential measurer, configured to obtain information related to an impedance of each of meshes, a chest section divided into the meshes; and an average value calculator configured to obtain a whole-region average value of impedances of all meshes of the chest section, and configured to obtain an ROI average value of impedances of meshes contained in each of ROIs, a whole region of the chest section segmented into the ROIs.Type: ApplicationFiled: February 17, 2015Publication date: August 27, 2015Inventor: Yukio NONAKA
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Publication number: 20150005658Abstract: An apparatus for determining a respiratory condition, includes: a signal acquiring section which is configured to acquire a signal corresponding to a respiratory flow of a subject; a first index producing section which is configured to produce a first index related to the respiratory flow of the subject obtained from the signal; a second index producing section which is configured to produce a second index related to a respiratory demand of the subject predicted from the first index; a third index producing section which is configured to produce a third index related to a respiratory effort of the subject based on the first index and the second index; and an outputting section which is configured to output the third index.Type: ApplicationFiled: June 26, 2014Publication date: January 1, 2015Applicants: NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITY, NIHON KOHDEN CORPORATIONInventors: Yukio NONAKA, Shiroh ISONO, Tsuyoshi SHIMIZU
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Publication number: 20130324877Abstract: An apparatus for determining a respiratory condition, the apparatus includes: a signal acquirer which is configured to acquire a signal waveform corresponding to a respiratory flow of a subject; a differential calculator which is configured to acquire a differential waveform which is obtained by performing differentiation of the signal waveform; and a first determiner which is configured to determine that inspiratory flow to limitation occurs in the subject, when the differential waveform satisfies a predetermined condition in a portion of the signal waveform, which corresponds to inspiration of the subject.Type: ApplicationFiled: May 23, 2013Publication date: December 5, 2013Applicants: National University Corporation Chiba University, NIHON KOHDEN CORPORATIONInventors: Yukio NONAKA, Shiroh ISONO, Tsuyoshi Shimizu
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Publication number: 20120186328Abstract: A liquid separator includes: a housing including: a first part including a first chamber; a second part including a second chamber; an inflow port into which a respiratory gas flows; a process chamber configured to perform a trapping process to trap liquid from the respiratory gas; and an outflow port from which the processed respiratory gas is discharged; a filter which is disposed in the process chamber interposed between the inflow port and the outflow port, and which partitions the process chamber into the first chamber on a side of the inflow port and the second chamber on a side of the outflow port; and a heating unit configured to heat at least one of the second part, the filter, and a vicinity of the filter.Type: ApplicationFiled: January 21, 2012Publication date: July 26, 2012Applicant: NIHON KOHDEN CORPORATIONInventors: Tetsuya MAKINO, Shinji YAMAMORI, Yukio NONAKA
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Patent number: 7363073Abstract: An electroencephalogram waveform is displayed in a first display area in a real time manner such that a direction indicating lapse of time is oriented horizontally. A second display area is provided adjacent to the first display area in which CSA or DSA derived from the electroencephalogram waveform, which has been displayed in the first display area, is consecutively displayed. A pulse waveform is displayed in a third display area in a real time manner such that a direction indicating lapse of time is oriented horizontally. A fourth display area is provided adjacent to the third display area so that the pulse waveform, which has been displayed in the third display area, is consecutively displayed in a compressed form. The electroencephalogram waveform in the first display area and the pulse waveform in the third display area are displayed synchronously with each other.Type: GrantFiled: September 13, 2002Date of Patent: April 22, 2008Assignee: Nihon Kohden CorporationInventor: Yukio Nonaka
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Publication number: 20030055356Abstract: An electroencephalogram waveform is displayed in a first display area in a real time manner such that a direction indicating lapse of time is oriented horizontally. A second display area is provided adjacent to the first display area in which CSA or DSA derived from the electroencephalogram waveform, which has been displayed in the first display area, is consecutively displayed. A pulse waveform is displayed in a third display area in a real time manner such that a direction indicating lapse of time is oriented horizontally. A fourth display area is provided adjacent to the third display area so that the pulse waveform, which has been displayed in the third display area, is consecutively displayed in a compressed form. The electroencephalogram waveform in the first display area and the pulse waveform in the third display area are displayed synchronously with each other.Type: ApplicationFiled: September 13, 2002Publication date: March 20, 2003Applicant: NIHON KOHDEN CORPORATIONInventor: Yukio Nonaka