Patents by Inventor Yuji Mizoguchi
Yuji Mizoguchi 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: 12018933Abstract: An accuracy diagnostic device for a machine tool diagnoses an accuracy of the machine tool. The machine tool includes a change amount detection unit that measures a change amount. The change amount changes due to an installation environment and an operational motion. The accuracy diagnostic device includes a change-amount-reference-value recording unit that records a reference value of the change amount. The accuracy diagnostic device obtains the change amount measured by the change amount detection unit. The accuracy diagnostic device diagnoses a change of the accuracy of the machine tool based on a first change index derived from a magnitude of a change of the change amount per a predetermined period and a second change index derived from the current change amount and the reference value.Type: GrantFiled: June 7, 2021Date of Patent: June 25, 2024Assignee: Okuma CorporationInventor: Yuji Mizoguchi
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Patent number: 12013233Abstract: An accuracy diagnostic device that diagnoses an influence on an accuracy of a machine tool due to a thermal deformation includes a temperature change rate calculation unit, an accuracy influence degree calculation unit, and an accuracy stabilization time period calculation unit. The temperature change rate calculation unit calculates a rate of a temperature change in a predetermined portion of the machine tool as a temperature change rate. The accuracy influence degree calculation unit calculates an influence degree on the machine tool accuracy due to the thermal deformation as an accuracy influence degree, based on the temperature change rate. The accuracy stabilization time period calculation unit calculates a time period until the machine tool accuracy is stabilized as an accuracy stabilization time period, based on the temperature change rate.Type: GrantFiled: June 7, 2021Date of Patent: June 18, 2024Assignee: Okuma CorporationInventor: Yuji Mizoguchi
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Patent number: 11989002Abstract: An environmental temperature change prediction device includes an environmental temperature acquisition unit, an outside temperature acquisition unit, a plant environment pattern setting unit, a prediction model generating unit, and an environmental temperature change prediction unit. The environmental temperature acquisition unit measures a machine body temperature. The plant environment pattern setting unit defines in advance a classification rule for classifying change trends of the environmental temperature into a plurality of patterns based on data of the environmental temperature and the plant outside temperature and environmental temperature prediction models. The prediction model generating unit selects the applicable plant environment pattern and determines a parameter of the environmental temperature prediction model corresponding to the selected plant environment pattern.Type: GrantFiled: February 28, 2022Date of Patent: May 21, 2024Assignee: Okuma CorporationInventor: Yuji Mizoguchi
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Patent number: 11953406Abstract: An accuracy diagnostic device includes a change amount detecting unit, a change amount recording unit, an accuracy change predictor, and an accuracy adjustment timing presenting unit. The change amount detecting unit detects a magnitude of a change in at least one of a state of a machine tool and a surrounding environment of the machine tool as a change amount. The change amount recording unit records the change amount. The accuracy change predictor predicts a future accuracy change of the machine tool using the change amount recorded in the change amount recording unit. The accuracy adjustment timing presenting unit presents a timing at which an accuracy adjustment is to be required for the machine tool based on the accuracy change predicted by the accuracy change predictor.Type: GrantFiled: April 20, 2022Date of Patent: April 9, 2024Assignee: Okuma CorporationInventor: Yuji Mizoguchi
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Publication number: 20230241740Abstract: A machining accuracy diagnosing device includes a diagnosing information acquiring, an opening time setting unit, a cutting time setting unit, and a machining accuracy influence amount predicting unit. The diagnosing information acquiring unit acquires at least one of a room temperature inside the plant, a set temperature of a temperature regulating device, an air temperature outside the plant, a wind speed outside the plant, an opening degree of the door or the shutter, and a machine body temperature. The opening time setting unit sets an opening time of the door or the shutter. The machining accuracy influence amount predicting unit predicts an influence amount of opening of the door or the shutter on the machining accuracy based on the acquired information for diagnosis, the set opening time of the door or the shutter, and a set scheduled machining start time and a set scheduled machining end time.Type: ApplicationFiled: January 18, 2023Publication date: August 3, 2023Applicant: OKUMA CORPORATIONInventors: Yuji MIZOGUCHI, Takashi NORIHISA, Toshihiko MURAHASHI
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Publication number: 20230236089Abstract: A machining accuracy diagnosing device includes a temperature regulation operating pattern setting unit, a cutting condition setting unit, a temperature information acquiring unit, and a machining accuracy influence amount predicting unit. The temperature regulation operating pattern setting unit sets an operating pattern of a temperature regulating unit. The cutting condition setting unit sets a scheduled machining start time and a scheduled machining end time. The temperature information acquiring unit acquires an influencing temperature of the temperature regulating unit on the machine body temperature and/or an air temperature outside the plant.Type: ApplicationFiled: January 19, 2023Publication date: July 27, 2023Applicant: OKUMA CORPORATIONInventors: Yuji MIZOGUCHI, Takashi NORIHISA, Toshihiko MURAHASHI
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Thermal displacement correction method and thermal displacement correction apparatus of machine tool
Patent number: 11666999Abstract: A thermal displacement correction method is provided, including a first step of setting an initial tool temperature, a second step of estimating a temperature of a tool or a position measurement sensor based on the initial tool temperature and a temperature of a spindle, a third step of estimating an amount of thermal displacement of the tool or the position measurement sensor with a preliminarily set tool thermal displacement estimation formula based on the estimated temperature, and a fourth step of moving a feed shaft of the machine tool based on the estimated amount of thermal displacement to perform a correction. In the second step, the temperature of the spindle is measured, then a tool-mounted portion temperature of the spindle is estimated from the measured temperature.Type: GrantFiled: December 24, 2019Date of Patent: June 6, 2023Assignee: Okuma CorporationInventor: Yuji Mizoguchi -
Patent number: 11590622Abstract: A thermal displacement compensation apparatus includes a temperature measuring unit, a thermal displacement estimating unit, a thermal displacement compensation unit, a displacement measuring unit, a data recording unit, a thermal displacement compensation learning unit, and a displacement measurement timing diagnostic unit. The displacement measuring unit measures a displacement of a machine tool after compensating an axis command value. The thermal displacement compensation learning unit determines a thermal displacement estimation formula based on temperature information and the displacement recorded in the data recording unit. The displacement measurement timing diagnostic unit compares the temperature information at a past displacement measurement recorded in the data recording unit with current temperature information obtained from the temperature measuring unit, and determines whether to measure the displacement by the displacement measuring unit or not at a predetermined diagnosis timing.Type: GrantFiled: December 15, 2021Date of Patent: February 28, 2023Assignee: Okuma CorporationInventor: Yuji Mizoguchi
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Publication number: 20220341820Abstract: An accuracy diagnostic device includes a change amount detecting unit, a change amount recording unit, an accuracy change predictor, and an accuracy adjustment timing presenting unit. The change amount detecting unit detects a magnitude of a change in at least one of a state of a machine tool and a surrounding environment of the machine tool as a change amount. The change amount recording unit records the change amount. The accuracy change predictor predicts a future accuracy change of the machine tool using the change amount recorded in the change amount recording unit. The accuracy adjustment timing presenting unit presents a timing at which an accuracy adjustment is to be required for the machine tool based on the accuracy change predicted by the accuracy change predictor.Type: ApplicationFiled: April 20, 2022Publication date: October 27, 2022Applicant: OKUMA CORPORATIONInventor: Yuji MIZOGUCHI
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Publication number: 20220291656Abstract: An environmental temperature change prediction device includes an environmental temperature acquisition unit, an outside temperature acquisition unit, a plant environment pattern setting unit, a prediction model generating unit, and an environmental temperature change prediction unit. The environmental temperature acquisition unit measures a machine body temperature. The plant environment pattern setting unit defines in advance a classification rule for classifying change trends of the environmental temperature into a plurality of patterns based on data of the environmental temperature and the plant outside temperature and environmental temperature prediction models. The prediction model generating unit selects the applicable plant environment pattern and determines a parameter of the environmental temperature prediction model corresponding to the selected plant environment pattern.Type: ApplicationFiled: February 28, 2022Publication date: September 15, 2022Applicant: OKUMA CORPORATIONInventor: Yuji MIZOGUCHI
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Publication number: 20220226953Abstract: A thermal displacement compensation apparatus includes a temperature measuring unit, a thermal displacement estimating unit, a thermal displacement compensation unit, a displacement measuring unit, a data recording unit, a thermal displacement compensation learning unit, and a displacement measurement timing diagnostic unit. The displacement measuring unit measures a displacement of a machine tool after compensating an axis command value. The thermal displacement compensation learning unit determines a thermal displacement estimation formula based on temperature information and the displacement recorded in the data recording unit. The displacement measurement timing diagnostic unit compares the temperature information at a past displacement measurement recorded in the data recording unit with current temperature information obtained from the temperature measuring unit, and determines whether to measure the displacement by the displacement measuring unit or not at a predetermined diagnosis timing.Type: ApplicationFiled: December 15, 2021Publication date: July 21, 2022Applicant: OKUMA CORPORATIONInventor: Yuji MIZOGUCHI
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Publication number: 20220076837Abstract: A technique for suitably performing a health evaluation of individuals and organizations. A question information database of a management server stores a physical question group which has multiple question items based on the viewpoint of current physical states and lifestyle habits, a mental question group which has multiple question items based on the viewpoint of psychological state, and an engagement question group which has multiple question items based on the viewpoint of the user's motivation. The management server sends thea user terminal question information generated on the basis of the physical question group, the mental question group and the engagement question group. The user terminal sends the management server the user's responses to the received question information. The management server generates advice information and a total score based on the responses and provides these to the user.Type: ApplicationFiled: August 26, 2019Publication date: March 10, 2022Inventors: Yosuke SUZUKI, Akiko MIYAZAKI, Yuji MIZOGUCHI
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Publication number: 20220011100Abstract: An accuracy diagnostic device that diagnoses an influence on an accuracy of a machine tool due to a thermal deformation includes a temperature change rate calculation unit, an accuracy influence degree calculation unit, and an accuracy stabilization time period calculation unit. The temperature change rate calculation unit calculates a rate of a temperature change in a predetermined portion of the machine tool as a temperature change rate. The accuracy influence degree calculation unit calculates an influence degree on the machine tool accuracy due to the thermal deformation as an accuracy influence degree, based on the temperature change rate. The accuracy stabilization time period calculation unit calculates a time period until the machine tool accuracy is stabilized as an accuracy stabilization time period, based on the temperature change rate.Type: ApplicationFiled: June 7, 2021Publication date: January 13, 2022Applicant: OKUMA CORPORATIONInventor: Yuji MIZOGUCHI
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Publication number: 20210404800Abstract: An accuracy diagnostic device for a machine tool diagnoses an accuracy of the machine tool. The machine tool includes a change amount detection unit that measures a change amount. The change amount changes due to an installation environment and an operational motion. The accuracy diagnostic device includes a change-amount-reference-value recording unit that records a reference value of the change amount. The accuracy diagnostic device obtains the change amount measured by the change amount detection unit. The accuracy diagnostic device diagnoses a change of the accuracy of the machine tool based on a first change index derived from a magnitude of a change of the change amount per a predetermined period and a second change index derived from the current change amount and the reference value.Type: ApplicationFiled: June 7, 2021Publication date: December 30, 2021Applicant: OKUMA CORPORATIONInventor: Yuji MIZOGUCHI
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Publication number: 20210304324Abstract: The present disclosure relates to communications between users in a community service within a virtual space, and provides an information processing method, a program, and an information processing device which facilitate activating communities through the mediation of a virtual user. In this method, users including an administrator user and a plurality of general users are associated with a virtual user for supporting the users in a community. The method includes the steps, executed by a computer, of generating an event associated with the administrator user and a first general user; and in response to the generated event, causing the virtual user to generate prompt content for prompting a second general user to communicate with the first general user, and supply the prompt content to the second general user in the community.Type: ApplicationFiled: July 22, 2019Publication date: September 30, 2021Applicant: FiNC Technologies inc.Inventors: Yuji MIZOGUCHI, Takuma Alexander KUBOTA, Toshitaka INUKAI
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Publication number: 20200259768Abstract: A predetermined user is supported behind the scenes with a variety of functions in order to promote messaging in a talk room in an instant messaging application. A method for messaging through a talk room is provided. This method includes the steps, executed by a virtual user implemented by a computer for assisting a first user, of dynamically generating a first message intended for the first user or a second user based on a history of messaging in the talk room and health information on the second user; providing the first message to the talk room in association with the first user; updating the history in response to the provision of the first message; and generating a first screen to be presented to the first user and a second screen to be presented to the second user, the first and second screens being associated with the talk room.Type: ApplicationFiled: December 18, 2017Publication date: August 13, 2020Applicant: FiNC Technologies inc.Inventors: Yuji MIZOGUCHI, Takao KONDO
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Publication number: 20200230764Abstract: A method includes four steps, (1) setting an initial tool temperature, (2) estimating a temperature of a tool or a position measurement sensor based on the initial tool temperature and a temperature of a spindle, (3) estimating an amount of thermal displacement of the tool or the position measurement sensor with a preliminarily set tool thermal displacement estimation formula based on the estimated temperature, and (4) moving a feed shaft of the machine tool based on the estimated amount of thermal displacement to perform a correction. In the second step, the temperature of the spindle is measured, then a tool-mounted portion temperature of the spindle from the measured temperature is estimated. Further, the temperature of the tool or the position measurement sensor is estimated with the tool-mounted portion temperature, the initial tool temperature of the tool or the position measurement sensor, and the preliminarily set tool temperature estimation formula.Type: ApplicationFiled: December 24, 2019Publication date: July 23, 2020Applicant: OKUMA CORPORATIONInventor: Yuji MIZOGUCHI
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Patent number: 10496072Abstract: A temperature of a portion of which the temperature is difficult to directly measure is accurately estimated in a simple method. In S1, information about a coolant discharging/stopping state is obtained. As the information about the coolant discharging/stopping state, a flag is used such that the flag represents 1 for the discharging state and the flag represents 0 for the stopping state. Next, in S2, temperature data is obtained from temperature sensors provided in components of a machine tool, a machining space, and a coolant tank. Next, in S3, lag process is performed for the coolant discharging/stopping state flag, and coefficients for measured temperatures of the coolant and the structure are calculated. Next, in S4, the measured temperatures are multiplied by the coefficients, and an estimated temperature of a portion to which the temperature sensor is not attached is calculated.Type: GrantFiled: November 3, 2017Date of Patent: December 3, 2019Assignee: Okuma CorporationInventor: Yuji Mizoguchi
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Patent number: 10036120Abstract: There is provided a shoe press belt for a papermaking machine, comprising one or more resin layers. At least a part of the resin layers comprises a polyurethane resin comprising polymeric MIDI as an ingredient. The polyurethane resin may be a resin obtainable by reacting one or more curing agent(s) having an active hydrogen group, polymeric MDI and one or more urethane prepolymer(s) having a terminal isocyanate group, the urethane prepolymer(s) being obtainable by reacting one or more isocyanate compound(s) with one or more polyol(s).Type: GrantFiled: January 25, 2017Date of Patent: July 31, 2018Assignee: Ichikawa Co., Ltd.Inventors: Yuya Takamori, Nobuharu Suzuki, Mitsuyoshi Matsuno, Chie Umehara, Yuji Mizoguchi, Taichi Sakai
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Publication number: 20180181103Abstract: A temperature of a portion of which the temperature is difficult to directly measure is accurately estimated in a simple method. In S1, information about a coolant discharging/stopping state is obtained. As the information about the coolant discharging/stopping state, a flag is used such that the flag represents 1 for the discharging state and the flag represents 0 for the stopping state. Next, in S2, temperature data is obtained from temperature sensors provided in components of a machine tool, a machining space, and a coolant tank. Next, in S3, lag process is performed for the coolant discharging/stopping state flag, and coefficients for measured temperatures of the coolant and the structure are calculated. Next, in S4, the measured temperatures are multiplied by the coefficients, and an estimated temperature of a portion to which the temperature sensor is not attached is calculated.Type: ApplicationFiled: November 3, 2017Publication date: June 28, 2018Applicant: Okuma CorporationInventor: Yuji MIZOGUCHI