Patents by Inventor Masayuki Terada
Masayuki Terada 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: 20240386499Abstract: The value of the real estate investment trust is predicted. A REIT price prediction device 1 includes: a storage unit 10 that stores a prediction model for predicting a future REIT price, the prediction model being generated by learning based on training data comprising sets of input data, which comprises population distribution data regarding the population distribution around each of a plurality of real estate properties in which a REIT (Real Estate Investment Trust) invests, and a REIT price indicating the value of the REIT; an acquisition unit 11 that acquires the input data; and an output unit 13 that outputs the future REIT price obtained by applying the input data acquired by the acquisition unit 11 to the prediction model stored in the storage unit 10.Type: ApplicationFiled: August 22, 2022Publication date: November 21, 2024Applicant: NTT DOCOMO, INC.Inventors: Kazuki KINJOU, Masayuki TERADA, Hiroto AKATSUKA, Motoko SUZUKI, Takako KOMINATO
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Publication number: 20240354833Abstract: A population involved in actions in the movement destination area is predicted. A purchase predicting device 1 includes: a storage unit 10 that stores a prediction coefficient, which is a probability that a person in a predetermined area will be involved in actions, and an average moving population ratio, which is a probability that a person in a predetermined area will move to a movement destination area that is an area of a movement destination; an acquisition unit 11 that acquires population distribution data regarding a population for each area; and a prediction unit 13 that predicts a population involved in purchasing for each movement destination area based on the population distribution data acquired by the acquisition unit 11 and the prediction coefficient and the average moving population ratio stored in the storage unit 10.Type: ApplicationFiled: August 22, 2022Publication date: October 24, 2024Applicant: NTT DOCOMO, INC.Inventors: Kazuki KINJOU, Hiroto AKATSUKA, Masayuki TERADA, Motoko SUZUKI, Takako KOMINATO
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Publication number: 20240220656Abstract: In a privacy protection data association system including devices (10A, 10B) which maintain user data including a user ID and personal information, each device includes: a de-identification processing unit (11) which performs an irreversible conversion process on the user ID and a privacy protection process on the personal information and generates de-identified data corresponding to the user data satisfying target user conditions; an encryption unit (12) which generates double-encrypted de-identified data using a self-encryption key and a partner encryption key in cooperation between its own device and a partner device without disclosing the keys; an aggregation processing unit (13) which compares data generated by the two devices and aggregates the number of data whose user ID parts match each other, as the number of target users; and a disclosure limitation processing unit (14) which generates disclosure limited statistical information by performing a disclosure limitation process for an aggregating resultType: ApplicationFiled: February 22, 2022Publication date: July 4, 2024Applicant: NTT DOCOMO, INC.Inventors: Kazuma NOZAWA, Tomohiro NAKAGAWA, Kazuya SASAKI, Masayuki TERADA
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Publication number: 20240048127Abstract: An analysis device includes: an estimation unit that obtains a current state variable by state estimation based on a state variable for first sequence data generated by applying a first conversion to observation data, a state space model, and each element included in the first sequence data; an observation unit that generates second sequence data by applying an observation process to the current state variable; an elaboration unit that generates third sequence data by performing an elaboration process of correcting each element included in the second sequence data so that a value of each cell of the estimated observation data does not become a negative value and the number of cells having a value other than 0 included in the estimated observation data is suppressed; and a second conversion unit that generates the estimated observation data by applying a second conversion to the third sequence data.Type: ApplicationFiled: March 24, 2021Publication date: February 8, 2024Applicant: NTT DOCOMO, INC.Inventors: Hiroto AKATSUKA, Masayuki TERADA
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Patent number: 9515353Abstract: A non-aqueous electrolyte, lithium-ion secondary battery includes an electrode group in which positive and negative electrode plates are wound via a separator accommodated into a battery container into which a non-aqueous electrolyte is injected. In the positive electrode plate, a positive electrode mixture layer including a lithium transition metal complex oxide is formed at both surfaces of an aluminum foil. A flame retardant layer containing a phosphazene compound as a flame retardant and a polyethylene oxide of a binder having ionic conductivity is formed at a surface of the positive electrode mixture layer. In the negative electrode plate, a negative electrode mixture layer including a carbon material of a negative electrode active material is formed at both surfaces of rolled copper foil. Ionic conductivity is secured by the polyethylene oxide, and the phosphazene compound decomposes when a battery temperature rises due to battery abnormality.Type: GrantFiled: September 5, 2011Date of Patent: December 6, 2016Assignees: NTT FACILITIES, INC., HITACHI CHEMICAL COMPANY, LTD.Inventors: Tomonobu Tsujikawa, Masayasu Arakawa, Kenji Kurita, Masayuki Terada
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Patent number: 8942724Abstract: A number-of-terminals estimation device has a unit to acquire location data; a unit to acquire location acquisition time information of second location data immediately preceding the first location data and third location data immediately following the first location data, from location data including the same identification information; a unit to calculate a feature amount of the first location data, based on at least two of the location acquisition time information of the first to third location data; a unit to acquire observation target location data including location acquisition time information after an observation start time and before an observation end time and including location information corresponding to observation area information; and a unit to estimate the number of terminals located in the observation area during the observation period, based on feature amounts of the observation target location data and the length of the observation period.Type: GrantFiled: October 13, 2011Date of Patent: January 27, 2015Assignee: NTT DOCOMO, INC.Inventors: Masayuki Terada, Motonari Kobayashi, Ichiro Okajima
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Patent number: 8903791Abstract: A statistical information generation system includes a condition input section, an extracting section that extracts unidentifiable location data and unidentifiable attribute data, a magnification factor adding section that adds a magnification factor to the unidentifiable attribute data, a statistics section that calculates statistical data by using the unidentifiable location data, the unidentifiable attribute data, and the magnification factor, a counting section that counts the unidentifiable location data, a determining section that determines a magnitude of the number of pieces of data, and an output section that hides the statistical data to output the statistical data.Type: GrantFiled: April 6, 2011Date of Patent: December 2, 2014Assignee: NTT DoCoMo, Inc.Inventors: Masayuki Terada, Ichiro Okajima, Yuki Oyabu
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Patent number: 8880095Abstract: A position information aggregation device includes a position information receiving unit receives position information related to the positions of a plurality of mobile communication terminals together with a user ID specifying a user of the terminal corresponding to each position information and an address code of the user, an acquisition rate calculating unit that calculates a position information acquisition rate of each address code of the plurality of terminals using population statistics data and position information of each narrow area in a predetermined broad area, and an aggregating unit that aggregates a population distribution in a certain area by extracting the position information corresponding to the certain area based on the position information received by the position information receiving unit and aggregating the position information in which the position information acquisition rate corresponding to the address code included in the position information is reflected.Type: GrantFiled: October 13, 2011Date of Patent: November 4, 2014Assignee: NTT DoCoMo, Inc.Inventors: Motonari Kobayashi, Masayuki Terada, Ichiro Okajima
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Patent number: 8849307Abstract: A terminal number estimation device includes a first location information acquisition unit containing a terminal ID and an area ID identifying a location area of a mobile terminal, a second location information acquisition unit that acquires second location information containing a terminal ID and coordinate information of the mobile terminal, a correspondence information generation unit that generates correspondence information based on the area ID and the coordinate information using the first and the second location information, an area information acquisition unit that acquires area information containing an area ID and area range information about an area range of an area identified by the area ID, an in-area terminal number acquisition unit that acquires the number of in-area mobile terminals, and a terminal number correction unit that corrects the number of terminals based on the correspondence information and the area information.Type: GrantFiled: February 10, 2012Date of Patent: September 30, 2014Assignee: NTT DoCoMo, Inc.Inventors: Masayuki Terada, Takayasu Yamaguchi, Ichiro Okajima
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Publication number: 20130288707Abstract: An information processing device and a method for estimating a number of terminals, which can accurately count a number of mobile terminals in an analysis target region of which address attribute is an adjacent region, taking the intake phenomenon into account. A terminal counting portion counts numbers of first and second position information pieces. An intake coefficient calculation portion calculates an intake coefficient based on the numbers of position information pieces. An intaked terminal calculation portion calculates a number of intaked terminals based on the counted number of position information pieces at an analysis target time and the calculated intake coefficient, subtracts the number of intaked terminals from the number of position information pieces, and calculates an estimated number of mobile terminals.Type: ApplicationFiled: March 29, 2012Publication date: October 31, 2013Applicant: NTT DOCOMO, INC.Inventors: Tomohiro Nagata, Masayuki Terada, Toru Odawara, Ichiro Okajima
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Publication number: 20130252090Abstract: A non-aqueous electrolyte battery capable of securing safety at a time of battery abnormality and restricting a drop in capacity or output at a time of battery use is provided. In a lithium-ion secondary battery 20, an electrode group 6 that positive and negative electrode plates are wound via a separator is accommodated into a battery container 7 into which a non-aqueous electrolyte is injected. In the positive electrode plate, a positive electrode mixture layer W2 including a lithium transition metal complex oxide is formed at both surfaces of an aluminum foil W1. A flame retardant layer W6 containing a phosphazene compound of a flame retardant and a polyethylene oxide of a binder having ionic conductivity is formed at a surface of the positive electrode mixture layer W2. In the negative electrode plate, a negative electrode mixture layer W6 including a carbon material of a negative electrode active material is formed at both surfaces of rolled copper foil W3.Type: ApplicationFiled: September 5, 2011Publication date: September 26, 2013Inventors: Tomonobu Tsujikawa, Masayasu Arakawa, Kenji Kurita, Masayuki Terada
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Publication number: 20130216920Abstract: A non-aqueous electrolyte battery capable of flattening of a voltage property and securing safety at a time of battery abnormality is provided. A lithium-ion secondary battery 20 has an electrode group 6 in which a positive and a negative electrode plates are wound. A non-aqueous electrolyte is formed by adding LiBF4 to a mixed solvent of EC and DMC. In the positive electrode plate, a positive electrode mixture layer W2 including a positive electrode active material is formed at both surfaces of an aluminum foil W1. A lithium manganese magnesium complex oxide having a spinel crystal structure is used as the positive electrode active material. A flame retardant layer W6 including a phosphazene compound is formed at a surface of the positive electrode mixture layer W2. In the negative electrode plate, a negative electrode mixture layer W4 including a negative electrode active material is formed at both surfaces of a rolled copper foil W3.Type: ApplicationFiled: September 5, 2011Publication date: August 22, 2013Inventors: Tomonobu Tsujikawa, Masayasu Arakawa, Masayuki Terada, Koji Hayashi
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Publication number: 20130203377Abstract: To estimate the number of mobile terminals that have been staying in an observation area for a desired period of time, the feature quantity calculation portion 17 calculates a feature quantity for observation target location data based on location acquisition time information contained in the observation target location data acquired by the observation target acquisition portion 15. The expected stay time calculation portion 18 calculates an expected stay time in an observation area to be observed and, based on the expected stay time, the passing/staying terminal selection portion 19 selects mobile terminals to serve as a target of terminal quantity estimation. Then, the terminal quantity estimation portion 20 estimates the number of mobile terminals calculated as the target of estimation. In this manner, the terminal quantity estimation device 10 estimates the number of mobile terminals that have been staying in the observation area for a desired period of time.Type: ApplicationFiled: January 30, 2012Publication date: August 8, 2013Applicant: NTT DOCOMO, INC.Inventors: Tomohiro Nagata, Ichiro Okajima, Masayuki Terada, Sadanori Aoyagi
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Publication number: 20130184006Abstract: An area range estimation device includes a first location information acquisition unit that acquires first location information containing terminal identification information identifying a mobile terminal and area identification information identifying a location area of the mobile terminal, a second location information acquisition unit that acquires second location information containing the terminal identification information and location information indicating a location of the mobile terminal, a correspondence information generation unit that generates correspondence information based on the area identification information and the location information by using the acquired first location information and second location information, and an area range estimation unit that estimates a range of an area identified by the area identification information based on the generated correspondence information.Type: ApplicationFiled: February 10, 2012Publication date: July 18, 2013Applicant: NTT DOCOMO, INC.Inventors: Takayasu Yamaguchi, Masayuki Terada, Junichiro Hagiwara, Ichiro Okajima
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Publication number: 20130184008Abstract: A terminal number estimation device includes a first location information acquisition unit containing a terminal ID and an area ID identifying a location area of a mobile terminal, a second location information acquisition unit that acquires second location information containing a terminal ID and coordinate information of the mobile terminal, a correspondence information generation unit that generates correspondence information based on the area ID and the coordinate information using the first and the second location information, an area information acquisition unit that acquires area information containing an area ID and area range information about an area range of an area identified by the area ID, an in-area terminal number acquisition unit that acquires the number of in-area mobile terminals, and a terminal number correction unit that corrects the number of terminals based on the correspondence information and the area information.Type: ApplicationFiled: February 10, 2012Publication date: July 18, 2013Applicant: NTT DOCOMO INC.Inventors: Masayuki Terada, Takayasu Yamaguchi, Ichiro Okajima
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Publication number: 20130176433Abstract: A terminal-entry-count estimation device includes: an extraction unit for extracting a terminal estimated to be located in an observation area during at least a part of an observation period, or a piece of location data generated by the terminal in the observation period or in an extended period extended by a predetermined width from the observation period, based on location data which includes identification information to identify each terminal, location information about a location of the terminal, and acquisition time information when the location information is acquired and of which an acquisition time is within the observation period or within the extended period; and a terminal-entry-count estimation unit for estimating a terminal-entry-count in the observation area during the observation period, based on the number of extracted location data or the number of extracted terminals.Type: ApplicationFiled: January 24, 2012Publication date: July 11, 2013Applicant: NTT DOCOMO, INC.Inventors: Masayuki Terada, Tomohiro Nagata, Sadanori Aoyagi, Ichiro Okajima
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Publication number: 20130173346Abstract: An information analysis device includes: a receiving unit for receiving a location registration signal including a sector ID, location registration time information and a user ID subjected to location registration; an extracting unit for extracting a location registration signal of which the location registration time is immediately preceding a target time and a location registration signal of which the location registration time is immediately following the target time, from the location registration signal for each user; and a population distribution calculation unit for calculating population distribution by sector at the target time based on location registration time information and a location corresponding to the sector ID in the location registration signal immediately preceding the target time for each user, location registration time information and a location corresponding to the sector ID in the location registration signal immediately following the target time for each user, and the target time.Type: ApplicationFiled: July 29, 2011Publication date: July 4, 2013Applicant: NTT DOCOMO, INC.Inventors: Toru Odawara, Yuki Oyabu, Tomohiro Nagata, Ichiro Okajima, Masayuki Terada
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Publication number: 20130157689Abstract: A number-of-terminals estimation device includes: a location data acquisition unit to acquire location data which are a collection of multiple pieces of location information including location registration information; a first presence count estimation unit to estimate a first presence count to be the number of terminals in observation area during observation period, based on the location data; a signal removal unit to extract location data in accordance with a type of location data from the location data; a second presence count estimation unit to estimate a second presence count to be the number of terminals in observation area during observation period, based on extracted location data; and a third presence count estimation unit to estimate a third presence count to be the number of terminals in observation area during observation period, based on one or both of first and second presence counts.Type: ApplicationFiled: January 24, 2012Publication date: June 20, 2013Applicant: NTT DOCOMO, INC.Inventors: Masayuki Terada, Motonari Kobayashi, Toru Odawara, Ichiro Okajima
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Patent number: 8468094Abstract: An electronic value exchange system 100 comprises a mobile terminal 10 and a mobile terminal 20. The mobile terminal 10 causes a driver 12 to transmit an exchange offer message of electronic value V1, V2 to the mobile terminal 20. The mobile terminal 20 stores handlers that the driver 12 can execute in relationship to a message in a common table 221, and acquires a handler corresponding to the above-mentioned offer message, and notifies the exchange offer contents based on the handler to an application program 21. If the application program 21 consents to the offer contents according to the operation of a user, the electronic value V2 stored in an IC card 23 is transmitted to an IC card 13 via a driver 22 and the driver 12.Type: GrantFiled: April 21, 2005Date of Patent: June 18, 2013Assignees: NTT DoCoMo, Inc.Inventors: Ken Sakamura, Noboru Koshizuka, Kensaku Mori, Masayuki Terada, Kazuhiko Ishii, Sadayuki Hongo
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Publication number: 20130137459Abstract: A position information aggregation device includes a position information receiving unit receives position information related to the positions of a plurality of mobile communication terminals together with a user ID specifying a user of the terminal corresponding to each position information and an address code of the user, an acquisition rate calculating unit that calculates a position information acquisition rate of each address code of the plurality of terminals using population statistics data and position information of each narrow area in a predetermined broad area, and an aggregating unit that aggregates a population distribution in a certain area by extracting the position information corresponding to the certain area based on the position information received by the position information receiving unit and aggregating the position information in which the position information acquisition rate corresponding to the address code included in the position information is reflected.Type: ApplicationFiled: October 13, 2011Publication date: May 30, 2013Applicant: NTT DOCOMO INCInventors: Motonari Kobayashi, Masayuki Terada, Ichiro Okajima