Patents by Inventor Takao Naito

Takao Naito 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: 20200248617
    Abstract: The invention provides a cogeneration system capable of adjusting a heat-to-electric power ratio not only in an increasing direction, but also in a decreasing direction. The cogeneration system includes: a power generation device configured to supply electric power; a first heat exchanger configured to exchange heat between exhaust of the power generation device and water, so as to lower a temperature of the exhaust and obtain steam from the water; a reformer configured to generate a reformed gas by the steam reacting with a fuel; a second heat exchanger configured to cool the reformed gas generated by the reformer by heat exchanging; a reformed gas supply device configured to supply the reformed gas cooled by the second heat exchanger to the power generation device; a distributor configured to supply the steam to at least one of the reformer and a heat utilization device; and a control device configure to adjust a heat-to-electric power ratio by changing a supply destination of the steam in the distributor.
    Type: Application
    Filed: January 31, 2020
    Publication date: August 6, 2020
    Inventors: Yuzo SHIRAKAWA, Hiroto NAITO, Takao ISHIKAWA
  • Publication number: 20190290183
    Abstract: A recovery evaluation apparatus includes a display that displays an image, an evaluating unit that evaluates balance of a subject who is viewing the image, a controller that, in accordance with temporal variation of an evaluation value of the balance, varies a degree of a visual stimulus provided by the image, and a recovery evaluation unit that evaluates balance recovery, the balance recovery representing balance recovery of the subject upon varying of the degree of the visual stimulus.
    Type: Application
    Filed: October 22, 2018
    Publication date: September 26, 2019
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Takao NAITO, Shin TAKEUCHI, Osamu TOCHIKUBO
  • Publication number: 20190163081
    Abstract: Provided are a ferrite carrier core material for an electrophotographic developer having a full length L1 of grain boundary and a circumference length L2 of the core material in a cross-section of the core material, and satisfying a relationship of 2?L1/L2?9; a carrier for an electrophotographic developer including the ferrite carrier core material and a coating layer containing a resin provided on a surface of the ferrite carrier core material; and an electrophotographic developer including the carrier and a toner.
    Type: Application
    Filed: November 26, 2018
    Publication date: May 30, 2019
    Inventors: Yuzuru YAMASAKI, Takao SUGIURA, Takeshi NAITO, Tetsuya UEMURA
  • Patent number: 10094731
    Abstract: A standing position evaluation apparatus includes a center-of-gravity position detection unit that detects a head-center-of-gravity position that is a position of a center of gravity of a head of a subject in a standing position projected onto a floor surface and a body-center-of-gravity position that is a position of a center of gravity of a body of the subject in the standing position projected onto the floor surface, and an evaluation unit that evaluates a standing position balance of the subject by using the detected head-center-of-gravity position and the detected body-center-of-gravity position.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: October 9, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Takao Naito, Osamu Tochikubo
  • Patent number: 9941994
    Abstract: Methods and systems are provided for wavelength shift elimination during spectral inversion in optical networks. The method includes receiving an input optical signal, and generating a combined optical signal by combining, by Bragg scattering, the input optical signal having an input wavelength with a first pump signal having a first wavelength. The method further includes converting the combined optical signal into an output optical signal, by phase-conjugation, using a second pump signal having a second wavelength. The output optical signal has the same wavelength as the input optical signal.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: April 10, 2018
    Assignee: Fujitsu Limited
    Inventors: Kevin Croussore, Inwoong Kim, Olga I. Vassilieva, Takao Naito
  • Publication number: 20180075848
    Abstract: A dialogue apparatus includes a memory, an estimation unit, and a dialogue unit. The memory associatively stores a certain topic and a change in an affective state of each user before and after a dialogue on that topic. The estimation unit estimates an affective state of a user using information obtained from a detector that detects a sign that expresses the affective state of the user. The dialogue unit extracts, from the memory, a topic where the affective state obtained by the estimation unit matches or is similar to a pre-dialogue affective state and where a target affective state matches or is similar to a post-dialogue affective state, and has a dialogue on the extracted topic with the user.
    Type: Application
    Filed: February 22, 2017
    Publication date: March 15, 2018
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Takao NAITO, Roshan THAPLIYA
  • Patent number: 9871580
    Abstract: A transmission apparatus being one of a plurality of transmission apparatuses included in a ring network, including: a processor configured to: receive a specified message from a first transmission apparatus, the specified message being for setting loopback for at least one wavelength in a ring network, the specified message being transmitted when a failure of at least one optical signal having the at least one wavelength is detected in a specified link of the ring network, and set a loopback to a switch, the loopback being set for a specified wavelength of the at least one wavelength when a specified optical signal having the specified wavelength is terminated by the switch and converted to an electrical signal and when the specified optical signal having the specified wavelength is not terminated and not converted to an electrical signal by any apparatus from a second transmission apparatus to the specified link.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: January 16, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Yasuki Fujii, Takao Naito
  • Patent number: 9680566
    Abstract: A transmission apparatus includes: a storage unit to store a table in which a wavelength terminated by each of transmission apparatuses is associated with each of the transmission apparatuses; a transmission unit to transmit a message including failure information to other transmission apparatus when a failure occurs; a switch controller to determine whether its own transmission apparatus is a last transmission apparatus that terminates the wavelength among transmission apparatuses that are present on a path up to a link where the failure, based on the table, when receiving the message from other transmission apparatus, and to perform a control of switching a transmission direction of a signal having the wavelength when the switch controller determines that its own transmission apparatus is the last transmission apparatus to terminate the wavelength; and a switch to switch a transmission direction of the signal for each wavelength under a control of the switch controller.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: June 13, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Yasuki Fujii, Takao Naito
  • Publication number: 20170126353
    Abstract: Methods and systems are provided for wavelength shift elimination during spectral inversion in optical networks. The method includes receiving an input optical signal, and generating a combined optical signal by combining, by Bragg scattering, the input optical signal having an input wavelength with a first pump signal having a first wavelength. The method further includes converting the combined optical signal into an output optical signal, by phase-conjugation, using a second pump signal having a second wavelength. The output optical signal has the same wavelength as the input optical signal.
    Type: Application
    Filed: October 30, 2015
    Publication date: May 4, 2017
    Inventors: Kevin Croussore, Inwoong Kim, Olga I. Vassilieva, Takao Naito
  • Publication number: 20160308604
    Abstract: A transmission apparatus being one of a plurality of transmission apparatuses included in a ring network, including: a processor configured to: receive a specified message from a first transmission apparatus, the specified message being for setting loopback for at least one wavelength in a ring network, the specified message being transmitted when a failure of at least one optical signal having the at least one wavelength is detected in a specified link of the ring network, and set a loopback to a switch, the loopback being set for a specified wavelength of the at least one wavelength when a specified optical signal having the specified wavelength is terminated by the switch and converted to an electrical signal and when the specified optical signal having the specified wavelength is not terminated and not converted to an electrical signal by any apparatus from a second transmission apparatus to the specified link.
    Type: Application
    Filed: April 11, 2016
    Publication date: October 20, 2016
    Applicant: FUJITSU LIMITED
    Inventors: Yasuki FUJII, Takao Naito
  • Patent number: 9459103
    Abstract: A non-transitory computer readable medium stores a movement situation determining program for causing a computer to function as a two-axial direction correlation value calculating portion that calculates a correlation value indicating a relationship between motions in two axial directions of a plurality of axial directions on the basis of information obtained by detecting motions of a moving target in the plurality of axial directions, and a movement situation determining portion that determines a movement situation of the moving target on the basis of the correlation value.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: October 4, 2016
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Masahiro Sato, Takayuki Takeuchi, Kyotaro Tomoda, Minoru Mitsui, Tsutomu Ishii, Shigehiko Sasaki, Akira Ichiboshi, Takao Naito
  • Publication number: 20160278683
    Abstract: A standing position evaluation apparatus includes a center-of-gravity position detection unit that detects a head-center-of-gravity position that is a position of a center of gravity of a head of a subject in a standing position projected onto a floor surface and a body-center-of-gravity position that is a position of a center of gravity of a body of the subject in the standing position projected onto the floor surface, and an evaluation unit that evaluates a standing position balance of the subject by using the detected head-center-of-gravity position and the detected body-center-of-gravity position.
    Type: Application
    Filed: August 18, 2015
    Publication date: September 29, 2016
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Takao NAITO, Osamu TOCHIKUBO
  • Publication number: 20160282215
    Abstract: A standing position evaluation apparatus includes a center-of-gravity position detection unit that detects a head-center-of-gravity position that is a position of a center of gravity of a head of a subject in a standing position projected onto a floor surface and a body-center-of-gravity position that is a position of a center of gravity of a body of the subject in the standing position projected onto the floor surface, and an evaluation unit that evaluates a standing position balance of the subject by using the detected head-center-of-gravity position and the detected body-center-of-gravity position.
    Type: Application
    Filed: March 18, 2016
    Publication date: September 29, 2016
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Takao NAITO, Osamu TOCHIKUBO
  • Patent number: 9344483
    Abstract: A method for facilitating remote downloading, in accordance with particular embodiments, includes receiving, at a proxy server maintained by a wireless service provider, a remote download request. The remote download request is relayed to the proxy server via at least one component of a wireless service provider's network. The remote download request includes an address associated with at least one file hosted by a remote server. The method also includes downloading the at least one file from the remote server to the proxy server. Upon detecting a presence of the endpoint, the method includes transferring the at least one file from the proxy server to the endpoint via a femto base station associated with the endpoint.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: May 17, 2016
    Assignee: Fujitsu Limited
    Inventors: Chenxi Zhu, Wei-Peng Chen, Takao Naito
  • Publication number: 20150326310
    Abstract: A transmission apparatus includes: a storage unit to store a table in which a wavelength terminated by each of transmission apparatuses is associated with each of the transmission apparatuses; a transmission unit to transmit a message including failure information to other transmission apparatus when a failure occurs; a switch controller to determine whether its own transmission apparatus is a last transmission apparatus that terminates the wavelength among transmission apparatuses that are present on a path up to a link where the failure, based on the table, when receiving the message from other transmission apparatus, and to perform a control of switching a transmission direction of a signal having the wavelength when the switch controller determines that its own transmission apparatus is the last transmission apparatus to terminate the wavelength; and a switch to switch a transmission direction of the signal for each wavelength under a control of the switch controller.
    Type: Application
    Filed: March 18, 2015
    Publication date: November 12, 2015
    Applicant: FUJITSU LIMITED
    Inventors: Yasuki FUJII, Takao Naito
  • Patent number: 9178575
    Abstract: In accordance with particular embodiments, a method for adjusting power distribution includes establishing a connection between a base station and a plurality of remote transceivers. The method also includes establishing a plurality of wireless connections with a plurality of endpoints via one or more of the plurality of remote transceivers. The method further includes determining a plurality of signal quality indications. Each signal quality indication is associated with a different one of a plurality of unique endpoint-remote transceiver pairs. The method additionally includes determining a power distribution for the plurality of remote transceivers based on the plurality of signal quality indications and an optimization equation. The optimization equation is configured to optimize a data throughput associated with the plurality of wireless connections by determining a power gain for each of the wireless connections.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: November 3, 2015
    Assignee: Fujitsu Limited
    Inventors: Wei-Peng Chen, Chenxi Zhu, Takao Naito
  • Patent number: 9154193
    Abstract: A method for adjusting power distribution that includes establishing a connection between a base station and a plurality of remote transceivers. The method also includes establishing a plurality of wireless connections with a plurality of endpoints via one or more of the plurality of remote transceivers. The method further includes receiving a signal quality indication from each of the plurality of remote transceivers for any endpoint for which the remote transceiver is able to receive a wireless communication. The method additionally includes determining a power distribution for the plurality of remote transceivers based on the received signal quality indication from each of the remote transceivers. The method also includes transmitting a control signal to the plurality of remote transceivers. The control signal comprises the power distribution and is indicative of the amount of power each remote transceiver is to use for each endpoint when transmitting wireless communications.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: October 6, 2015
    Assignee: Fujitsu Limited
    Inventors: Wei-Peng Chen, Chenxi Zhu, Takao Naito
  • Patent number: 9092083
    Abstract: A contact detecting device includes a plurality of detecting elements, a generating unit, and a determining unit. The plurality of detecting elements are related to one another in a two-dimensional configuration on a predetermined contacted surface, and respectively detect a contact of an object with the contacted surface. The generating unit generates, on the basis of the result of detection by the plurality of detecting elements, feature information representing a feature of a trajectory drawn on the basis of a contact of an object with the contacted surface. The determining unit determines whether or not the feature information generated by the generating unit corresponds to previously registered specific contact feature information representing a feature of a trajectory drawn on the basis of a specific contact of an object with the contacted surface.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: July 28, 2015
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Akira Ichiboshi, Tsutomu Ishii, Takayuki Takeuchi, Shigehiko Sasaki, Masahiro Sato, Kyotaro Tomoda, Takao Naito, Minoru Mitsui
  • Patent number: 9014395
    Abstract: An audio analysis apparatus includes the following components. A main body includes a discrimination unit and a transmission unit. A strap is used for hanging the main body from a user's neck. A first audio acquisition device is provided to the strap or the main body. A second audio acquisition device is provided to the strap at a position where a distance between the second audio acquisition device and the user's mouth is smaller than the distance between the first audio acquisition device and the user's in a state where the strap is worn around the user's neck. The discrimination unit discriminates whether an acquired sound is an uttered voice of the user or of another person by comparing audio signals of the sound acquired by the first and second audio acquisition devices. The transmission unit transmits information including the discrimination result to an external apparatus.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: April 21, 2015
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Haruo Harada, Hirohito Yoneyama, Kei Shimotani, Yohei Nishino, Kiyoshi Iida, Takao Naito
  • Publication number: 20150071294
    Abstract: An apparatus generates plural communication-route candidates corresponding to a requested communication channel by combining first transmission-paths providing connections between particular nodes in a network and second transmission-paths providing connections between three or more nodes in the network, where the first transmission paths are accommodated in plural communication cables together with the second transmission paths. The apparatus holds a table indicating first and second association relationships, where the first association relationship associates the first transmission paths with communication cables that accommodate the first transmission paths and are provided at opposite ends of each of the first transmission-paths, and the second association relationship associates the second transmission paths with communication cables accommodating the second transmission paths.
    Type: Application
    Filed: August 12, 2014
    Publication date: March 12, 2015
    Applicant: FUJITSU LIMITED
    Inventors: Takao NAITO, Kazuyuki TAJIMA, Yutaka TAKITA, Tomohiro HASHIGUCHI