Patents by Inventor Miki Hayakawa
Miki Hayakawa 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: 11403160Abstract: A reference time point which is equivalent to a fault-prediction-execution time point is sequentially changed by setting, as a symptom sensing period, a period from a time point which is a predetermined first period-length before the reference time point until the reference time point, and by setting, as a prediction target period, a period from the reference time point until a time point which is a predetermined second period-length after the reference time point if a fault does not occur in the period from the reference time point until the time point which is the second period-length after the reference time point, and a period from the reference time point until a fault-occurrence time point if a fault occurs in the period from the reference time point until the time point which is the second period-length after the reference time point, and machine learning is performed by using, as an explanatory variable, a feature quantity based on the operation log information of the symptom sensing period, and usingType: GrantFiled: January 19, 2018Date of Patent: August 2, 2022Assignee: Hitachi, Ltd.Inventor: Miki Hayakawa
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Publication number: 20220000405Abstract: An analysis system includes a storage unit and a processing unit. The processing unit quantifies the brain state on the basis of occurrence frequencies of the duration included in a plurality of regions each of which has a predefined range within which the duration falls. The calculated brain index is calculated by the processing unit using coefficients.Type: ApplicationFiled: September 20, 2021Publication date: January 6, 2022Inventors: Satomi TSUJI, Kazuo YANO, Nobuo SATO, Miki HAYAKAWA, Koji ARA, Tomoaki AKITOMI
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Patent number: 11200528Abstract: A generation technique and an analysis technique of a large number of explanatory variables to derive effective measures by using various data are provided. Specifically, a factor which lurks in a large amount of data and affects business performance is identified by automatically generating a large number of explanatory variables and performing correlation analysis between the explanatory variables and an objective variable. Three operators representing condition, target, and arithmetic which are variable generation conditions are defined in advance for data inputted into an analysis system and a large number of explanatory variables are automatically generated by these operators.Type: GrantFiled: September 4, 2019Date of Patent: December 14, 2021Assignee: HITACHI, LTD.Inventors: Norihiko Moriwaki, Kazuo Yano, Nobuo Sato, Shinichi Fukuma, Hiroyuki Tomita, Miki Hayakawa, Norio Ohkubo
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Patent number: 11172854Abstract: An analysis system analyzes a state of a person and includes a terminal configured to be worn on the person's body. The terminal includes an acceleration sensor, a storage unit, and a processing unit. The processing unit determines whether each value contained in the time series data is in a first state in which the value is equal to or greater than the threshold or in a second state in which the value is less than the threshold. The processing unit also determines a duration which is a period of time during which the first state continues. The processing unit quantifies a brain state of the person on the basis of the duration.Type: GrantFiled: July 27, 2017Date of Patent: November 16, 2021Assignee: Happiness Planet, Ltd.Inventors: Satomi Tsuji, Kazuo Yano, Nobuo Sato, Miki Hayakawa, Koji Ara, Tomoaki Akitomi
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Publication number: 20200371858Abstract: A reference time point which is equivalent to a fault-prediction-execution time point is sequentially changed by setting, as a symptom sensing period, a period from a time point which is a predetermined first period-length before the reference time point until the reference time point, and by setting, as a prediction target period, a period from the reference time point until a time point which is a predetermined second period-length after the reference time point if a fault does not occur in the period from the reference time point until the time point which is the second period-length after the reference time point, and a period from the reference time point until a fault-occurrence time point if a fault occurs in the period from the reference time point until the time point which is the second period-length after the reference time point, and machine learning is performed by using, as an explanatory variable, a feature quantity based on the operation log information of the symptom sensing period, and usingType: ApplicationFiled: January 19, 2018Publication date: November 26, 2020Inventor: Miki HAYAKAWA
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Publication number: 20200005211Abstract: Provided is an information processing system which is suitable for evaluating a state of a group based on measured data of a plurality of persons. The present invention is an information processing system comprising a recording device which collects, and stores, data via a network from a terminal device worn by each of a plurality of persons, and a computer which sets a group of a predetermined number of persons among the plurality of persons based on the collected data, wherein the terminal device outputs measured data of the person to the network, wherein the recording device stores the measured data, and wherein the computer calculates an index of a state of activity of the group based on the measured data of the terminal device worn by each person belonging to the group.Type: ApplicationFiled: September 11, 2017Publication date: January 2, 2020Inventors: Satomi TSUJI, Miki HAYAKAWA, Yuuichi OGAWA, Yuichiro TANAKA
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Publication number: 20190392362Abstract: A generation technique and an analysis technique of a large number of explanatory variables to derive effective measures by using various data are provided. Specifically, a factor which lurks in a large amount of data and affects business performance is identified by automatically generating a large number of explanatory variables and performing correlation analysis between the explanatory variables and an objective variable. Three operators representing condition, target, and arithmetic which are variable generation conditions are defined in advance for data inputted into an analysis system and a large number of explanatory variables are automatically generated by these operators.Type: ApplicationFiled: September 4, 2019Publication date: December 26, 2019Inventors: Norihiko MORIWAKI, Kazuo YANO, Nobuo SATO, Shinichi FUKUMA, Hiroyuki TOMITA, Miki HAYAKAWA, Norio OHKUBO
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Patent number: 10445676Abstract: A generation technique and an analysis technique of a large number of explanatory variables to derive effective measures by using various data are provided. Specifically, a factor which lurks in a large amount of data and affects business performance is identified by automatically generating a large number of explanatory variables and performing correlation analysis between the explanatory variables and an objective variable. Three operators representing condition, target, and arithmetic which are variable generation conditions are defined in advance for data inputted into an analysis system and a large number of explanatory variables are automatically generated by these operators.Type: GrantFiled: October 8, 2013Date of Patent: October 15, 2019Assignee: Hitachi, Ltd.Inventors: Norihiko Moriwaki, Kazuo Yano, Nobuo Sato, Shinichi Fukuma, Hiroyuki Tomita, Miki Hayakawa, Norio Ohkubo
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Patent number: 10445752Abstract: In order to solve the problem of an increase in the number of electronic devices that transmit specific signals and are installed inside a store in order to obtain traffic line information, the present invention calculates position coordinates in a facility using a calculation formula based on the number of signals received and the pattern of the number of signals received, and determines traffic line information.Type: GrantFiled: June 21, 2013Date of Patent: October 15, 2019Assignee: Hitachi, Ltd.Inventors: Norio Ohkubo, Miki Hayakawa, Norihiko Moriwaki
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Patent number: 10321210Abstract: Provided is a sensor system provided with: a terminal apparatus that has a sensor; and a base station that communicates with the terminal apparatus. The terminal apparatus stores acquisition frequency of a measurement data set to be transmitted to the base station, in measurement data sets of the sensor, and transmits first data that includes a reference time of an acquisition period of the measurement data sets of the sensor and the acquisition frequency, and second data that corresponds to the first data and that includes multiple measurement data sets, of the sensor, which have been acquired at the acquisition frequency in the acquisition period. The base station identifies the acquisition time of each of the measurement data sets included in the second data corresponding to the first data, on the basis of the reference time and the acquisition frequency included in the first data.Type: GrantFiled: July 19, 2016Date of Patent: June 11, 2019Assignee: Hitachi, Ltd.Inventor: Miki Hayakawa
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Publication number: 20180242058Abstract: Provided is a sensor system provided with: a terminal apparatus that has a sensor; and a base station that communicates with the terminal apparatus. The terminal apparatus stores acquisition frequency of a measurement data set to be transmitted to the base station, in measurement data sets of the sensor, and transmits first data that includes a reference time of an acquisition period of the measurement data sets of the sensor and the acquisition frequency, and second data that corresponds to the first data and that includes multiple measurement data sets, of the sensor, which have been acquired at the acquisition frequency in the acquisition period. The base station identifies the acquisition time of each of the measurement data sets included in the second data corresponding to the first data, on the basis of the reference time and the acquisition frequency included in the first data.Type: ApplicationFiled: July 19, 2016Publication date: August 23, 2018Inventor: Miki HAYAKAWA
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Publication number: 20170319125Abstract: An analysis system analyzes a state of a person and includes a terminal configured to be worn on the person's body. The terminal includes an acceleration sensor, a storage unit, and a processing unit. The processing unit determines whether each value contained in the time series data is in a first state in which the value is equal to or greater than the threshold or in a second state in which the value is less than the threshold. The processing unit also determines a duration which is a period of time during which the first state continues. The processing unit quantifies a brain state of the person on the basis of the duration.Type: ApplicationFiled: July 27, 2017Publication date: November 9, 2017Inventors: Satomi TSUJI, Kazuo YANO, Nobuo SATO, Miki HAYAKAWA, Koji ARA, Tomoaki AKITOMI
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Patent number: 9496954Abstract: According to an embodiment of the preset invention, in a sensor terminal that is worn by a person, and detects that respective wearers face each other by the aid of an optical communication, a plurality of optical transmit/receive units each having at least one of a transmission unit that emits the light to transmit data, and a reception unit that receives the light to receive the data is arranged within the housing, and the plurality of optical transmit/receive units is arranged so that light emission axes of the transmission units, or extension lines of light detection axes of the reception units approaches each other.Type: GrantFiled: September 6, 2011Date of Patent: November 15, 2016Assignee: Hitachi, Ltd.Inventors: Miki Hayakawa, Norio Ohkubo, Yoshihiro Wakisaka
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Publication number: 20160125430Abstract: In order to solve the problem of an increase in the number of electronic devices that transmit specific signals and are installed inside a store in order to obtain traffic line information, the present invention calculates position coordinates in a facility using a calculation formula based on the number of signals received and the pattern of the number of signals received, and determines traffic line information.Type: ApplicationFiled: June 21, 2013Publication date: May 5, 2016Inventors: Norio OHKUBO, Miki HAYAKAWA, Norihiko MORIWAKI
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Publication number: 20140186051Abstract: According to an embodiment of the preset invention, in a sensor terminal that is worn by a person, and detects that respective wearers face each other by the aid of an optical communication, a plurality of optical transmit/receive units each having at least one of a transmission unit that emits the light to transmit data, and a reception unit that receives the light to receive the data is arranged within the housing, and the plurality of optical transmit/receive units is arranged so that light emission axes of the transmission units, or extension lines of light detection axes of the reception units approaches each other.Type: ApplicationFiled: September 6, 2011Publication date: July 3, 2014Applicant: HITACHI, LTD.Inventors: Miki Hayakawa, Norio Ohkubo, Yoshihiro Wakisaka
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Publication number: 20140108100Abstract: A generation technique and an analysis technique of a large number of explanatory variables to derive effective measures by using various data are provided. Specifically, a factor which lurks in a large amount of data and affects business performance is identified by automatically generating a large number of explanatory variables and performing correlation analysis between the explanatory variables and an objective variable. Three operators representing condition, target, and arithmetic which are variable generation conditions are defined in advance for data inputted into an analysis system and a large number of explanatory variables are automatically generated by these operators.Type: ApplicationFiled: October 8, 2013Publication date: April 17, 2014Applicant: HITACHI, LTD.Inventors: Norihiko MORIWAKI, Kazuo YANO, Nobuo SATO, Shinichi FUKUMA, Hiroyuki TOMITA, Miki HAYAKAWA, Norio OHKUBO
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Publication number: 20130272714Abstract: A state control system comprises a portable terminal and a control apparatus. The portable terminal sends a signal including identification information to an external. The control apparatus controls a controlled object in either one of a locked state and an unlocked state based on the signal sent from the portable terminal. The portable terminal sends a first signal, in a case where a event detector has not detected the event, and sends a second signal having a data length longer than a data length of the first signal, in a case where the event detector has detected the event. The control apparatus controls a controlled object to the unlocked state in a case where the controlled object is in the locked state and the controlled apparatus receives the second signal.Type: ApplicationFiled: March 18, 2013Publication date: October 17, 2013Applicant: HITACHI, LTD.Inventors: Norio OHKUBO, Yoshihiro WAKISAKA, Miki HAYAKAWA
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Patent number: 8484448Abstract: Information processing system including a first and a second operation mode with operating current lower than the first, a register holding an address of an instruction executed by a processing unit first when a boot address register returns from second to first operation mode, wherein the address is output to the processing unit when second to first operation mode shifting, wherein the boot address register is rewritable, an information holding circuit holding a value of a peripheral circuit module register, wherein the information holding circuit holds, in the second operation mode, information about the peripheral circuit module register, and, transfers information held in the information holding circuit to the peripheral circuit module register regarding a second-to-first operation mode shift, and wherein when an interrupt request is posted from outside the system in the second operation mode, the information processing system performs interrupt processing corresponding to the interrupt request.Type: GrantFiled: February 17, 2012Date of Patent: July 9, 2013Assignee: Renesas Electronics CorporationInventors: Motokazu Ozawa, Naohiko Irie, Saneaki Tamaki, Hisayoshi Ide, Miki Hayakawa
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Publication number: 20120191413Abstract: A desired number of a data transmitted from a sensor terminal of transmitting the data subjected to sensing within a predetermined time period is previously determined. An analysis server calculates an acquiring rate of a data used in a batch processing on the basis of the desired number of the data and a number of an effective data which is actually received from the plural sensor terminals within the previously determined time period. In a case where there is a variation in the acquiring rate of the data per unit time, the analysis server carries out the batch processing by using the data from the sensor terminal.Type: ApplicationFiled: January 19, 2012Publication date: July 26, 2012Applicant: HITACHI, LTD.Inventors: Nobuo SATO, Satomi TSUJI, Kazuo YANO, Miki HAYAKAWA
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Patent number: D898597Type: GrantFiled: February 26, 2019Date of Patent: October 13, 2020Assignee: Hitachi, Ltd.Inventors: Masaru Oda, Yoshihiro Iwama, Miki Hayakawa, Yuuichi Ogawa, Masaki Komatsu