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).

  • Patent number: 11968470
    Abstract: A display system includes a conversion apparatus converting video luminance including a luminance value in a first luminance range and a display apparatus connected thereto and displaying the video. The conversion apparatus includes a first acquisition unit, a first luminance converter, a second luminance converter, a quantization converter, and an output unit outputting a third luminance signal to the display apparatus.
    Type: Grant
    Filed: February 28, 2022
    Date of Patent: April 23, 2024
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Kengo Terada, Masayuki Kozuka, Takahiro Nishi, Tadamasa Toma
  • Publication number: 20240048127
    Abstract: 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: Application
    Filed: March 24, 2021
    Publication date: February 8, 2024
    Applicant: NTT DOCOMO, INC.
    Inventors: Hiroto AKATSUKA, Masayuki TERADA
  • Patent number: 9515353
    Abstract: 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: Grant
    Filed: September 5, 2011
    Date of Patent: December 6, 2016
    Assignees: NTT FACILITIES, INC., HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Tomonobu Tsujikawa, Masayasu Arakawa, Kenji Kurita, Masayuki Terada
  • Patent number: 8942724
    Abstract: 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: Grant
    Filed: October 13, 2011
    Date of Patent: January 27, 2015
    Assignee: NTT DOCOMO, INC.
    Inventors: Masayuki Terada, Motonari Kobayashi, Ichiro Okajima
  • Patent number: 8903791
    Abstract: 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: Grant
    Filed: April 6, 2011
    Date of Patent: December 2, 2014
    Assignee: NTT DoCoMo, Inc.
    Inventors: Masayuki Terada, Ichiro Okajima, Yuki Oyabu
  • Patent number: 8880095
    Abstract: 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: Grant
    Filed: October 13, 2011
    Date of Patent: November 4, 2014
    Assignee: NTT DoCoMo, Inc.
    Inventors: Motonari Kobayashi, Masayuki Terada, Ichiro Okajima
  • Patent number: 8849307
    Abstract: 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: Grant
    Filed: February 10, 2012
    Date of Patent: September 30, 2014
    Assignee: NTT DoCoMo, Inc.
    Inventors: Masayuki Terada, Takayasu Yamaguchi, Ichiro Okajima
  • Publication number: 20130288707
    Abstract: 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: Application
    Filed: March 29, 2012
    Publication date: October 31, 2013
    Applicant: NTT DOCOMO, INC.
    Inventors: Tomohiro Nagata, Masayuki Terada, Toru Odawara, Ichiro Okajima
  • Publication number: 20130252090
    Abstract: 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: Application
    Filed: September 5, 2011
    Publication date: September 26, 2013
    Inventors: Tomonobu Tsujikawa, Masayasu Arakawa, Kenji Kurita, Masayuki Terada
  • Publication number: 20130216920
    Abstract: 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: Application
    Filed: September 5, 2011
    Publication date: August 22, 2013
    Inventors: Tomonobu Tsujikawa, Masayasu Arakawa, Masayuki Terada, Koji Hayashi
  • Publication number: 20130203377
    Abstract: 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: Application
    Filed: January 30, 2012
    Publication date: August 8, 2013
    Applicant: NTT DOCOMO, INC.
    Inventors: Tomohiro Nagata, Ichiro Okajima, Masayuki Terada, Sadanori Aoyagi
  • Publication number: 20130184008
    Abstract: 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: Application
    Filed: February 10, 2012
    Publication date: July 18, 2013
    Applicant: NTT DOCOMO INC.
    Inventors: Masayuki Terada, Takayasu Yamaguchi, Ichiro Okajima
  • Publication number: 20130184006
    Abstract: 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: Application
    Filed: February 10, 2012
    Publication date: July 18, 2013
    Applicant: NTT DOCOMO, INC.
    Inventors: Takayasu Yamaguchi, Masayuki Terada, Junichiro Hagiwara, Ichiro Okajima
  • Publication number: 20130176433
    Abstract: 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: Application
    Filed: January 24, 2012
    Publication date: July 11, 2013
    Applicant: NTT DOCOMO, INC.
    Inventors: Masayuki Terada, Tomohiro Nagata, Sadanori Aoyagi, Ichiro Okajima
  • Publication number: 20130173346
    Abstract: 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: Application
    Filed: July 29, 2011
    Publication date: July 4, 2013
    Applicant: NTT DOCOMO, INC.
    Inventors: Toru Odawara, Yuki Oyabu, Tomohiro Nagata, Ichiro Okajima, Masayuki Terada
  • Publication number: 20130157689
    Abstract: 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: Application
    Filed: January 24, 2012
    Publication date: June 20, 2013
    Applicant: NTT DOCOMO, INC.
    Inventors: Masayuki Terada, Motonari Kobayashi, Toru Odawara, Ichiro Okajima
  • Patent number: 8468094
    Abstract: 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: Grant
    Filed: April 21, 2005
    Date of Patent: June 18, 2013
    Assignees: NTT DoCoMo, Inc.
    Inventors: Ken Sakamura, Noboru Koshizuka, Kensaku Mori, Masayuki Terada, Kazuhiko Ishii, Sadayuki Hongo
  • Publication number: 20130137459
    Abstract: 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: Application
    Filed: October 13, 2011
    Publication date: May 30, 2013
    Applicant: NTT DOCOMO INC
    Inventors: Motonari Kobayashi, Masayuki Terada, Ichiro Okajima
  • Publication number: 20130090132
    Abstract: 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: Application
    Filed: October 13, 2011
    Publication date: April 11, 2013
    Applicant: NTT DOCOMO, INC.
    Inventors: Masayuki Terada, Motonari Kobayashi, Ichiro Okajima
  • Publication number: 20130090891
    Abstract: A population calculation system includes: an acquisition module acquiring the number of counted people who are counted as samples in a count area containing a target area; a first calculation module calculating population in the count area on the basis of the number of counted people acquired and a scaling factor for determining the population in the count area on the basis of the number of counted people; a second calculation module calculating population in the target area on the basis of the population in the count area thus calculated; a quantization module concealing the population in the count area or the population in the target area on the basis of a class interval that is a product of concealment reference that is a reference value of a minimum summation unit and the scaling factor in calculation processing; and an output module outputting concealed population in the target area.
    Type: Application
    Filed: September 14, 2011
    Publication date: April 11, 2013
    Applicant: NTT DOCOMO, INC.
    Inventors: Motonari Kobayashi, Masayuki Terada, Tomohiro Nagata, Ichiro Okajima