Patents by Inventor Masanobu Katagi

Masanobu Katagi 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).

  • Publication number: 20140100708
    Abstract: There is provided an information processing device including an acquisition unit that acquires power supply request information that includes information on a supply period during which an electric power system is requesting supply of electric power, and reservation information for a vehicle, a calculation unit that, on the basis of the reservation information, calculates supply power to be supplied to the electric power system from the vehicle during the supply period, and a notification unit that notifies the electric power system of the calculated supply power.
    Type: Application
    Filed: May 25, 2012
    Publication date: April 10, 2014
    Applicant: Sony Corporation
    Inventors: Masakazu Ukita, Shiho Moriai, Masanobu Katagi
  • Patent number: 8683236
    Abstract: There is provided an outlet expansion apparatus including a first connection outlet to which an electronic appliance is to be connected, a second connection outlet that is for connecting to a power supply outlet that is to be a supply source of power, and a delegate authentication unit that carries out, in a case the electronic appliance not having a function of carrying out authentication with a power management apparatus managing an amount of power to be supplied to the electronic appliance is connected to the first connection outlet and the power supply outlet is connected to the second connection outlet, authentication to be carried out on the power management apparatus by the electronic appliance connected to the first connection outlet on behalf of the electronic appliance.
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: March 25, 2014
    Assignee: Sony Corporation
    Inventors: Masakazu Ukita, Yu Tanaka, Asami Yoshida, Tomoyuki Asano, Shiho Moriai, Masanobu Katagi, Yohei Kawamoto, Seiichi Matsuda
  • Publication number: 20140075199
    Abstract: There is provided an information processing apparatus including a key selection section configured to select one out of a plurality of different secret keys, in a public key authentication scheme or a digital signature scheme in which each of the plurality of secret keys exists for one public key registered in a verifier, and a process execution section configured to execute, by using the secret key selected by the key selection section, an authentication process with the verifier by the public key authentication scheme or a digital signature generation process to the verifier by the digital signature scheme.
    Type: Application
    Filed: August 1, 2013
    Publication date: March 13, 2014
    Applicant: Sony Corporation
    Inventors: Harunaga HIWATARI, Koichi SAKUMOTO, Masanobu KATAGI, Kazuya KAMIO
  • Publication number: 20140075201
    Abstract: There is provided an information processing device including a distribution control unit configured to cause one or two external devices to distributively perform a repetitive process in a process for signature or authentication in which the repetitive process is included, and a processing unit configured to perform the process for signature or authentication using a processing result of each of the external devices.
    Type: Application
    Filed: September 5, 2013
    Publication date: March 13, 2014
    Applicant: SONY CORPORATION
    Inventors: Harunaga HIWATARI, Masanobu Katagi, Kazuya Kamio
  • Publication number: 20140068788
    Abstract: There is provided an information processing apparatus including a processing request acquisition unit configured to sequentially acquire a plurality of processing requests from a user, and an authentication execution unit configured to distribute and execute user authentication processing according to a timing of acquiring the plurality of processing requests.
    Type: Application
    Filed: August 6, 2013
    Publication date: March 6, 2014
    Applicant: Sony Corporation
    Inventors: Yu TANAKA, Yohei Kawamoto, Kazuya Kamio, Masanobu Katagi, Harunaga Hiwatari
  • Publication number: 20130027200
    Abstract: There is provided an information processing apparatus including a similar tag list acquiring unit that acquires a similar tag list from which wireless tags having similar tracking information are extracted, a tracker extracting unit that extracts users permitted to access information of the wireless tags included in the similar tag list, a determining unit that determines whether a suspicious tag, which is a wireless tag included in the similar tag list that does not permit the user to access the information of the wireless tag, is included, with respect to each of the extracted users, and a notifying unit that transmits a notification to the user for whom it is determined that the suspicious tag is included in the similar tag list.
    Type: Application
    Filed: July 3, 2012
    Publication date: January 31, 2013
    Applicant: Sony Corporation
    Inventors: Masakazu Ukita, Masanobu Katagi, Shiho Moriai
  • Patent number: 8364961
    Abstract: Provided is a method where a power management apparatus (a) acquires, from a server managed by a manufacturer of an electronic appliance, a public key paired with a secret key that the electronic appliance and the server hold, (b) generates a ciphertext by generating a random number and encrypting the random number by the public key, and (c) transmits the ciphertext to the electronic appliance and the server, where the electronic appliance (d) restores the random number by decrypting the ciphertext transmitted in (c), (e) causes an electrical part to operate, based on the random number, and (f) transmits to the server the value of current flowing through the electrical part, and where the server (g) restores the random number by decrypting the ciphertext transmitted in (c), (h) calculates the value of current to flow through the electrical part based on the random number, and (i) compares values of current.
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: January 29, 2013
    Assignee: Sony Corporation
    Inventors: Yu Tanaka, Masakazu Ukita, Yohei Kawamoto, Seiichi Matsuda, Tomoyuki Asano, Masanobu Katagi, Shiho Moriai, Asami Yoshida
  • Publication number: 20130015708
    Abstract: An energy control device, an energy management device, an energy control method, and an energy management system are provided. The energy management system includes the energy management device and the energy control device. The energy management device includes an electric power management unit configured to generate an instruction specifying a supply destination for electric power generated by an electric power generator, and includes a communication unit configured to transmit the instruction to the energy control device. The energy control device includes a power conditioner configured to distribute the electric power to the supply destination based on the instruction, and includes a control unit configured to control an operation of the power conditioner.
    Type: Application
    Filed: July 3, 2012
    Publication date: January 17, 2013
    Applicant: SONY CORPORATION
    Inventors: Masakazu Ukita, Asami Yoshida, Shiho Moriai, Masanobu Katagi
  • Publication number: 20120310428
    Abstract: A power control device forms energy storage equipment together with a storage battery. The power control device includes: a communication portion that communicates with a power management device, which manages charge and discharge of the storage battery; a power conditioner that supplies electricity to a predetermined destination for supply; a control portion that controls operation of the power conditioner based on instructions from the power management device that are received by the communication portion; and an authentication processing portion that performs authentication processing with the power management device.
    Type: Application
    Filed: May 29, 2012
    Publication date: December 6, 2012
    Applicant: Sony Corporation
    Inventors: Masanobu Katagi, Masakazu Ukita, Shiho Moriai, Asami Yoshida
  • Publication number: 20120286723
    Abstract: There is provided a power management system including a power receiving unit for receiving power from outside according to consumption of power, an electrical storage unit for storing the power received by the power receiving unit, and a discharge control unit for controlling a second power amount discharged from the electrical storage unit so that a first power amount provided by the power receiving unit attains a predetermined time-series pattern.
    Type: Application
    Filed: January 4, 2011
    Publication date: November 15, 2012
    Inventors: Masakazu Ukita, Asami Yoshida, Tomoyuki Asano, Shiho Moriai, Masanobu Katagi, Yohei Kawamoto, Seiichi Matsuda, Yu Tanaka
  • Publication number: 20120249056
    Abstract: Disclosed herein is an electrical-charging/discharging control apparatus composing an electric-power accumulation facility in conjunction with an electric-power accumulation battery and including: a communication section configured to receive a command to carry out either of electrical charging and discharging operations on the electric-power accumulation battery from an electric-power management apparatus for managing the electrical charging and discharging operations carried out on the electric-power accumulation battery; a control section configured to control the electrical charging and discharging operations carried out on the electric-power accumulation battery on the basis of the command; and a power conditioner for supplying electric power from an electric-power network to the electric-power accumulation battery and transferring electric power accumulated in the electric-power accumulation battery to the electric-power network in accordance with control carried out by the control section.
    Type: Application
    Filed: February 22, 2012
    Publication date: October 4, 2012
    Inventors: Masakazu UKITA, Asami Yoshida, Shiho Moriai, Masanobu Katagi
  • Publication number: 20120159508
    Abstract: A task management system includes a capacity information acquisition section which acquires, from a computation device which executes a computation using electrical power derived from renewable energy, capacity information which shows the computation capacity of the computation device which is predicted based on weather information of a region where the computation device is disposed, and a task management section which allocates a computation task to a plurality of the computation devices based on the capacity information which is acquired from the plurality of computation devices using the capacity information acquisition section.
    Type: Application
    Filed: December 7, 2011
    Publication date: June 21, 2012
    Inventors: Masanobu KATAGI, Atsushi OKAMORI, Masakazu UKITA, Shiho MORIAI
  • Publication number: 20120110679
    Abstract: A service providing system includes a portable communication terminal operated by a user; a service providing apparatus providing a service to the user, and a server managing the service providing apparatus, wherein the service providing apparatus calculates a response using a challenge, and the portable communication terminal transmits a challenge generated by the server to the service providing apparatus subjected to a legitimacy check of the service providing apparatus and presents a result of the legitimacy check based on a response calculated by the service providing apparatus subjected to the legitimacy check using the transmitted challenge.
    Type: Application
    Filed: October 17, 2011
    Publication date: May 3, 2012
    Applicant: SONY CORPORATION
    Inventors: Tomoyuki Asano, Masakazu Ukita, Masanobu Katagi, Yohei Kawamoto, Yu Tanaka, Seiichi Matsuda, Shiho Moriai
  • Publication number: 20120089430
    Abstract: A distributed processing system includes a plurality of operation devices that perform an operation using power derived from natural energy; and an operation control device that includes a task assigning unit that assigns the same operation task to the plurality of operation devices, and an operation control unit that controls the plurality of operation devices to perform the operation task assigned by the task assigning unit.
    Type: Application
    Filed: December 1, 2011
    Publication date: April 12, 2012
    Inventors: Masakazu Ukita, Atsushi Okamori, Shiho Moriai, Masanobu Katagi
  • Publication number: 20120072042
    Abstract: A power supply device including: (a) a power supply unit group composed of a plurality of power supply units and connected with a power consuming appliance; and (b) a control device configured to control the power supply unit group, wherein the control device and each of the power supply units are connected to each other by a communicating circuit.
    Type: Application
    Filed: September 12, 2011
    Publication date: March 22, 2012
    Applicant: SONY CORPORATION
    Inventors: Shiho Moriai, Tsuyoshi Masato, Shinichi Uesaka, Atsushi Ozawa, Masanobu Katagi, Tomoyuki Ono, Kazuhito Tsuchida, Shin Hotta, Kazuo Nakamura, Kentaro Marutani
  • Publication number: 20120054042
    Abstract: An ID-value assessment device includes: an assessment calculation section that calculates a value assessment of a user to be assessed by using an assessment function of outputting the value assessment, which represents values of the corresponding user, in response to inputs of user attribute information representing an attribute of the user and service attribute information representing an attribute of a service and general information; and an assessment output section that outputs a user ID of the user to be assessed and the value assessment of the corresponding user, which is calculated by the assessment calculation section, in association with each other.
    Type: Application
    Filed: July 14, 2011
    Publication date: March 1, 2012
    Applicant: SONY CORPORATION
    Inventors: Yohei KAWAMOTO, Tomoyuki Asano, Seiichi Matsuda, Masakazu Ukita, Masanobu Katagi, Yu Tanaka, Shiho Moriai
  • Publication number: 20120054485
    Abstract: Disclosed is a terminal device, which includes an encrypting section encrypting input data in a fully homomorphic encryption scheme to generate encrypted data; an encrypted data transmission section transmitting the encrypted data generated by the encrypting section to a server; an encrypted data reception section receiving the encrypted data on which the server implements a predetermined process; and a decrypting section decrypting the encrypted data on which the predetermined process is implemented.
    Type: Application
    Filed: August 5, 2011
    Publication date: March 1, 2012
    Applicant: Sony Corporation
    Inventors: Yu TANAKA, Tomoyuki Asano, Masakazu Ukita, Masanobu Katagi, Yohei Kawamoto, Seiichi Matsuda, Shiho Moriai
  • Publication number: 20110238988
    Abstract: Provided is a method where a power management apparatus (a) acquires, from a server managed by a manufacturer of an electronic appliance, a public key paired with a secret key that the electronic appliance and the server hold, (b) generates a ciphertext by generating a random number and encrypting the random number by the public key, and (c) transmits the ciphertext to the electronic appliance and the server, where the electronic appliance (d) restores the random number by decrypting the ciphertext transmitted in (c), (e) causes an electrical part to operate, based on the random number, and (f) transmits to the server the value of current flowing through the electrical part, and where the server (g) restores the random number by decrypting the ciphertext transmitted in (c), (h) calculates the value of current to flow through the electrical part based on the random number, and (i) compares values of current.
    Type: Application
    Filed: January 18, 2011
    Publication date: September 29, 2011
    Inventors: Yu Tanaka, Masakazu Ukita, Yohei Kawamoto, Seiichi Matsuda, Tomoyuki Asano, Masanobu Katagi, Shiho Moriai, Asami Yoshida
  • Patent number: 8014521
    Abstract: A system and method for achieving secure and fast computation in hyperelliptic cryptography is realized. Fast scalar multiplication is achieve by executing computing operations including halving as computing processing in scalar multiplication with respect to a divisor D in hyperelliptic curve cryptography. For example, computing operations including halving are executed in scalar multiplication with respect to a divisor D on a hyperelliptic curve of genus 2 in characteristic 2 having h(x)=x2+x+h0, f4=0 as parameters, a hyperelliptic curve of genus 2 in characteristic 2 having h(x)=x2+h1x+h0, f4=0 as parameters, or a hyperelliptic curve of genus 2 in characteristic 2 having h(x)=x as a parameter. Further, reduced complexity and faster computation are realized through the application of a table that records which of k1, k1?, (k0, k0?) is correct on the basis of a computed value of [½iD] with respect to a fixed divisor D, and through a reduction in the number of inversion operations.
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: September 6, 2011
    Assignee: Sony Corporation
    Inventors: Izuru Kitamura, Masanobu Katagi, Tsuyoshi Takagi
  • Publication number: 20110184575
    Abstract: There is provided an analysis server including a first verifying unit that analyzes data acquired from a local power management system composed of an electronic appliance provided with a sensor and a power management apparatus managing power supply to the electronic appliance connected to a power network, by using history information of the local power management system or data acquired from another local power management system with a power usage state similar to that of the local power management system, a second verifying unit that analyzes the data acquired from the local power management system, by using an estimated value calculated by simulation using characteristics information and/or specification information of the electronic appliance, and a control unit that controls the first verifying unit and the second verifying unit.
    Type: Application
    Filed: January 14, 2011
    Publication date: July 28, 2011
    Inventors: Yohei KAWAMOTO, Asami Yoshida, Tomoyuki Asano, Masakazu Ukita, Shiho Moriai, Masanobu Katagi, Yu Tanaka, Seiichi Matsuda