Patents by Inventor Kazumasa Masuda
Kazumasa Masuda 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: 11398165Abstract: The simulator includes a chemical liquid information acquisition section configured to acquire an amount of contrast medium, a target value acquisition section configured to acquire a target duration for which a target pixel value is maintained, a protocol acquisition section configured to acquire a contrast medium injection protocol, and a prediction section for determining a predicted duration, the prediction section configured to simulate the time-dependent change in the pixel value in the tissue of the subject based on the injection protocol and the amount of the contrast medium, and the prediction section compares the predicted duration with the target duration to re-simulate, in a case where the predicted duration is shorter than the target duration, the time-dependent change in a condition where a greater amount of the contrast medium than the amount of the contrast medium used in the simulation is injected to redetermine the predicted duration, and in a case where the predicted duration is longer thanType: GrantFiled: July 23, 2018Date of Patent: July 26, 2022Assignees: HIROSHIMA UNIVERSITY, NEMOTO KYORINDO CO., LTD.Inventors: Toru Higaki, Kazuo Awai, Yuko Nakamura, Kazumasa Masuda, Koji Yuba, Shigeru Nemoto
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Patent number: 11392793Abstract: A blood vessel extraction apparatus including a convolutional neural network including a convolution unit which has a first path to which data for a first target region including some target voxels in medical volume data is input at a first resolution, and a second path to which data for a second target region including some target voxels in the medical volume data is input at a second resolution; and an output unit having a neural net structure which outputs numerical values related to visualization of the target voxels with an output result of the first path and the second path as input data.Type: GrantFiled: October 1, 2018Date of Patent: July 19, 2022Assignee: NEMOTO KYORINDO CO., LTD.Inventors: Kazumasa Masuda, Shigeru Nemoto, Wataru Uda, Arashi Haishima
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Patent number: 11383023Abstract: When imaging an imaging subject, a pixel value is maintained in a state of small fluctuation of the pixel value over an entire expected duration. A generation device includes: an imaging information acquiring unit acquiring information of an imaging site of an imaging subject; a subject information acquiring unit acquiring information of the imaging subject; and a protocol generation unit generating an injection protocol for a contrast medium based on the information of the imaging site and the information of the imaging subject, wherein the protocol generation unit generates the injection protocol including a first phase in which an injection rate decreases with a first acceleration, and a second phase which follows the first phase and in which the injection rate decreases with a second acceleration, and the injection rate at a start of the second phase is higher than the injection rate at an end of the first phase.Type: GrantFiled: November 16, 2017Date of Patent: July 12, 2022Assignee: NEMOTO KYORINDO CO., LTD.Inventors: Masayuki Dembo, Kazumasa Masuda, Shigeru Nemoto
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Publication number: 20200327370Abstract: A blood vessel extraction apparatus including a convolutional neural network including a convolution unit which has a first path to which data for a first target region including some target voxels in medical volume data is input at a first resolution, and a second path to which data for a second target region including some target voxels in the medical volume data is input at a second resolution; and an output unit having a neural net structure which outputs numerical values related to visualization of the target voxels with an output result of the first path and the second path as input data.Type: ApplicationFiled: October 1, 2018Publication date: October 15, 2020Inventors: Kazumasa MASUDA, Shigeru NEMOTO, Wataru UDA, Arashi HAISHIMA
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Publication number: 20200146751Abstract: In order to achieve a prediction approximating an actual change with time of a pixel value in a tissue with higher accuracy, provided is a simulator, which is configured to predict a change with time of a pixel value in a tissue of an object, including: an object information acquisition unit configured to acquire information on the object; a protocol acquisition unit configured to acquire an injection protocol for a contrast medium; a tissue information acquisition unit configured to acquire information on the tissue; and a prediction unit configured to predict, based on the information on the object, the injection protocol, and the information on the tissue, a change with time of a pixel value of each of a plurality of compartments obtained by dividing the tissue along a blood flow direction.Type: ApplicationFiled: December 30, 2019Publication date: May 14, 2020Applicants: HIROSHIMA UNIVERSITY, NEMOTO KYORINDO CO., LTD.Inventors: Toru HIGAKI, Kazuo AWAI, Yuko NAKAMURA, Kazumasa MASUDA, Koji YUBA, Shigeru NEMOTO
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Patent number: 10555773Abstract: In order to achieve a prediction approximating an actual change with time of a pixel value in a tissue with higher accuracy, provided is a simulator, which is configured to predict a change with time of a pixel value in a tissue of an object, including: an object information acquisition unit configured to acquire information on the object; a protocol acquisition unit configured to acquire an injection protocol for a contrast medium; a tissue information acquisition unit configured to acquire information on the tissue; and a prediction unit configured to predict, based on the information on the object, the injection protocol, and the information on the tissue, a change with time of a pixel value of each of a plurality of compartments obtained by dividing the tissue along a blood flow direction.Type: GrantFiled: November 26, 2015Date of Patent: February 11, 2020Assignees: HIROSHIMA UNIVERSITY, NEMOTO KYORINDO CO., LTD.Inventors: Toru Higaki, Kazuo Awai, Yuko Nakamura, Kazumasa Masuda, Koji Yuba, Shigeru Nemoto
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Publication number: 20190012932Abstract: The simulator includes a chemical liquid information acquisition section configured to acquire an amount of contrast medium, a target value acquisition section configured to acquire a target duration for which a target pixel value is maintained, a protocol acquisition section configured to acquire a contrast medium injection protocol, and a prediction section for determining a predicted duration, the prediction section configured to simulate the time-dependent change in the pixel value in the tissue of the subject based on the injection protocol and the amount of the contrast medium, and the prediction section compares the predicted duration with the target duration to re-simulate, in a case where the predicted duration is shorter than the target duration, the time-dependent change in a condition where a greater amount of the contrast medium than the amount of the contrast medium used in the simulation is injected to redetermine the predicted duration, and in a case where the predicted duration is longer thanType: ApplicationFiled: July 23, 2018Publication date: January 10, 2019Applicants: HIROSHIMA UNIVERSITY, NEMOTO KYORINDO CO., LTD.Inventors: Toru HIGAKI, Kazuo AWAI, Yuko NAKAMURA, Kazumasa MASUDA, Koji YUBA, Shigeru NEMOTO
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Publication number: 20180133392Abstract: When imaging an imaging subject, a pixel value is maintained in a state of small fluctuation of the pixel value over an entire expected duration. A generation device includes: an imaging information acquiring unit acquiring information of an imaging site of an imaging subject; a subject information acquiring unit acquiring information of the imaging subject; and a protocol generation unit generating an injection protocol for a contrast medium based on the information of the imaging site and the information of the imaging subject, wherein the protocol generation unit generates the injection protocol including a first phase in which an injection rate decreases with a first acceleration, and a second phase which follows the first phase and in which the injection rate decreases with a second acceleration, and the injection rate at a start of the second phase is higher than the injection rate at an end of the first phase.Type: ApplicationFiled: November 16, 2017Publication date: May 17, 2018Applicant: NEMOTO KYORINDO CO., LTD.Inventors: Masayuki DEMBO, Kazumasa MASUDA, Shigeru NEMOTO
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Publication number: 20170281278Abstract: In order to achieve a prediction approximating an actual change with time of a pixel value in a tissue with higher accuracy, provided is a simulator, which is configured to predict a change with time of a pixel value in a tissue of an object, including: an object information acquisition unit configured to acquire information on the object; a protocol acquisition unit configured to acquire an injection protocol for a contrast medium; a tissue information acquisition unit configured to acquire information on the tissue; and a prediction unit configured to predict, based on the information on the object, the injection protocol, and the information on the tissue, a change with time of a pixel value of each of a plurality of compartments obtained by dividing the tissue along a blood flow direction.Type: ApplicationFiled: November 26, 2015Publication date: October 5, 2017Applicants: HIROSHIMA UNIVERSITY, NEMOTO KYORINDO CO., LTD.Inventors: Toru HIGAKI, Kazuo AWAI, Yuko NAKAMURA, Kazumasa MASUDA, Koji YUBA, Shigeru NEMOTO
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Patent number: 9597447Abstract: A liquid injector registers the data of a variable pattern in which an injection rate of a contrast medium varies with time. The injection rate of the contrast medium varies with time according to the variable pattern for maintaining a state in which the image contrast achieved by the contrast medium approximates an optimum level.Type: GrantFiled: October 3, 2014Date of Patent: March 21, 2017Assignees: NEMOTO KYORINDO CO., LTD.Inventors: Kazumasa Masuda, Atsushi Hatcho
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Publication number: 20150025376Abstract: A liquid injector registers the data of a variable pattern in which an injection rate of a contrast medium varies with time. The injection rate of the contrast medium varies with time according to the variable pattern for maintaining a state in which the image contrast achieved by the contrast medium approximates an optimum level.Type: ApplicationFiled: October 3, 2014Publication date: January 22, 2015Inventors: Kazumasa Masuda, Atsushi Hatcho
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Patent number: 8858499Abstract: A liquid injector registers the data of a variable pattern in which an injection rate of a contrast medium varies with time. The injection rate of the contrast medium varies with time according to the variable pattern for maintaining a state in which the image contrast achieved by the contrast medium approximates an optimum level.Type: GrantFiled: June 24, 2013Date of Patent: October 14, 2014Assignees: Nemoto Kyorindo Co., Ltd., Atsushi HatchoInventors: Kazumasa Masuda, Atsushi Hatcho
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Publication number: 20130281849Abstract: A liquid injector registers the data of a variable pattern in which an injection rate of a contrast medium varies with time. The injection rate of the contrast medium varies with time according to the variable pattern for maintaining a state in which the image contrast achieved by the contrast medium approximates an optimum level.Type: ApplicationFiled: June 24, 2013Publication date: October 24, 2013Inventors: Kazumasa Masuda, Atsushi Hatcho
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Patent number: 8486017Abstract: A liquid injector registers the data of a variable pattern in which an injection rate of a contrast medium varies with time. The injection rate of the contrast medium varies with time according to the variable pattern for maintaining a state in which the image contrast achieved by the contrast medium approximates an optimum level.Type: GrantFiled: September 8, 2003Date of Patent: July 16, 2013Assignees: Nemoto Kyorindo Co., Ltd.Inventors: Kazumasa Masuda, Atsushi Hatcho
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Publication number: 20080287785Abstract: A liquid injection system which can be checked that that a liquid syringe is appropriately mounted on a chemical liquid injector and the liquid syringe is filled with a liquid at a time. Pattern 400 appearing as a predetermined shape when it is viewed from above through liquid syringe 200 filled with transparent liquid L is divided between a lower surface of liquid syringe 200 and an upper surface of chemical liquid injector 100. When liquid syringe 200 is appropriately held by chemical liquid injector 100, the pattern on the lower surface of liquid syringe 200 and the pattern on the upper surface of chemical liquid injector 100 are properly combined. If liquid syringe 200 is filled with a transparent liquid in this state, the combined pattern is viewed as the predetermined shape from above liquid syringe 200. The shape can be seen to check that the liquid syringe 200 is appropriately held and filled with liquid L at a time.Type: ApplicationFiled: March 23, 2005Publication date: November 20, 2008Inventors: Yasufumi Saitoh, Kazumasa Masuda
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Publication number: 20080262426Abstract: A controller which can be kept clean easily and has no influence on magnetism is provided. A light ray from light-emitting element 401 mounted on body 101 of a movable apparatus is detected by light-receiving element 402 mounted on body 101 via first optical fiber 431, wavelength-variable mechanism 421 of controller body 420 and second optical fiber 432. Wavelength-variable mechanism 421 changes a wavelength of the light ray in accordance with manual operation. The wavelength is detected by light-receiving element 402, and an operation of a movable mechanism is controlled. Since controller body 420 is not connected to body 101 via a wire, the controller has no influence on magnetism. Since an electronic circuit is not mounted on controller body 420, for example, controller body 420 can be disinfected with disinfectant or fumigation and also can be formed as a disposable device.Type: ApplicationFiled: June 10, 2005Publication date: October 23, 2008Applicant: Nemoto Kyorindo Co., LtdInventors: Takashi Hachiya, Kazumasa Masuda
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Publication number: 20050148869Abstract: The liquid syringe has various kinds of data items recorded in the two-dimensional code format. The liquid injector optically reads the two-dimensional codes, decodes them, and executes a predetermined operations corresponding to the decoded results. Recording, for example, a variable pattern for the liquid of interest in the two-dimensional code format on the liquid syringe makes it possible for the liquid injector to inject the liquid in accordance with the predetermined variable pattern.Type: ApplicationFiled: October 28, 2004Publication date: July 7, 2005Applicant: Nemoto Kyorindo Co., Ltd.Inventor: Kazumasa Masuda
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Publication number: 20040064040Abstract: A liquid injector registers the data of a variable pattern in which an injection rate of a contrast medium varies with time. The injection rate of the contrast medium varies with time according to the variable pattern for maintaining a state in which the image contrast achieved by the contrast medium approximates an optimum level.Type: ApplicationFiled: September 8, 2003Publication date: April 1, 2004Inventors: Kazumasa Masuda, Atsushi Hatcho
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Patent number: 6119464Abstract: A beverage server comprises a tank containing water serving as a coolant and a coiled beverage duct through which beer or other beverage flows and cooling means fitted to a portion of the wall of the tank so as to rapidly cool and serve beer or other beverage discharged from the storage container. The inner wall of the tank near the portion where the cooling means is fitted is made of a material having a high thermal conductivity, whereas the inner wall of the tank near the beverage duct is made of a material having a low thermal conductivity. A sensor is provided near the beverage duct to obtain information for controlling the cooling means. This simple beverage server assures stable serving of beverage at a suitable temperature. Another sensor is provided near a portion of the tank wall where the cooling means and a controller to controls the action of the cooling means based on the information from the sensors are also provided.Type: GrantFiled: December 2, 1996Date of Patent: September 19, 2000Assignees: Sapporo Breweries Limited, Nittetsu Hokkaido Control Systems Co., Tokyo Cooling Technical Co., Ltd.Inventors: Hiroshi Nakayama, Takaaki Furuhashi, Katsuoki Kawanishi, Kenji Kobayashi, Takashi Mizumoto, Kazumasa Masuda, Yasuo Fujikura