Patents by Inventor Akihiko Fujiwara

Akihiko Fujiwara 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: 10680237
    Abstract: There is provided an active material-exfoliated graphite composite that allows a lithium ion secondary battery to be obtained in which the initial capacity is large and deterioration in charge and discharge cycle characteristics is less likely to occur, when used for a negative electrode material for lithium ion secondary batteries. An active material-exfoliated graphite composite comprising: partially exfoliated graphite having a structure in which graphite is partially exfoliated; and an active material that is in the form of particles capable of intercalating and deintercalating lithium ions by composite formation with the partially exfoliated graphite, or particles capable of adsorbing and desorbing lithium ions by composite formation with the partially exfoliated graphite, wherein the active material has an average particle diameter of 1 ?m or more and 100 ?m or less.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: June 9, 2020
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Akihiko Fujiwara, Shoji Nozato, Akira Nakasuga, Hiroshi Yoshitani
  • Publication number: 20200176816
    Abstract: Provided is a carbon material that can improve the cycle characteristic in charge and discharge of an all-solid-state battery. The carbon material is a carbon material to be contained in a positive electrode and/or a negative electrode of an all-solid-state battery comprising a group 1- or group 2-ionic conductive solid electrolyte, wherein in an X-ray diffraction spectrum of a mixture of the carbon material and Si in a weight ratio of 1:1, a ratio a/b is 0.2 or higher and 10.0 or lower, where a represents a height of the highest peak in the range of 2? of 24° or larger and smaller than 28° and b represents a height of the highest peak in the range of 2? of 28° or larger and smaller than 30°.
    Type: Application
    Filed: August 1, 2018
    Publication date: June 4, 2020
    Inventors: Yuuki Sawada, Hiroki Masuda, Akira Nakasuga, Akihiko Fujiwara
  • Patent number: 10658126
    Abstract: There is provided a capacitor electrode material that does not require the use of a conductive aid and can increase the capacitance of an electric double layer capacitor. A capacitor electrode material comprising resin-remaining partially exfoliated graphite obtained by pyrolyzing a resin in a composition in which the resin is fixed to graphite or primary exfoliated graphite by grafting or adsorption, the resin-remaining partially exfoliated graphite having a structure in which graphite is partially exfoliated, with part of the resin remaining; and a binder resin.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: May 19, 2020
    Assignees: SEKISUI CHEMICAL CO., LTD., OITA UNIVERSITY
    Inventors: Akihiko Fujiwara, Shoji Nozato, Akira Nakasuga, Shunji Hyodo, Hiroshi Yoshitani, Masahiro Toyoda
  • Publication number: 20200134697
    Abstract: A purchase support system includes a server including a memory storing a list of commodities and purchase conditions specified by a customer, and a first processor, and a terminal including a display, a camera acquiring an image, and a second processor transmitting the image to the server. The first processor, upon receipt of the image from the terminal, identifies commodities in the image, determines first commodities that are included in the list of commodities and are also identified in the image, generates second information indicating where the first commodities are displayed, and transmits the first and second information to the terminal, and the second processor, upon receipt of the first and second information, controls the display to display, in the image, guidance images each indicating a location of a first commodity and whether the first commodity satisfies the purchase condition.
    Type: Application
    Filed: September 20, 2019
    Publication date: April 30, 2020
    Inventors: Ryuichi AOYAMA, Akihiko FUJIWARA, Mika HIRAMA, Masami TAKAHATA
  • Publication number: 20200136143
    Abstract: Provided is a carbon material-containing dispersion liquid that is excellent in dispersibility when used as a slurry for electrode formation of a secondary battery, and is capable of enhancing the battery characteristics such as output characteristics of the secondary battery. A carbon material-containing dispersion liquid includes a carbon material and a dispersion medium for the carbon material. In the carbon material-containing dispersion liquid, a concentration of the carbon material in the carbon material-containing dispersion liquid is 0.01% by weight or more and 20% by weight or less, and a light transmittance at a wavelength of 650 nm of a supernatant of the carbon material-containing dispersion liquid when the carbon material-containing dispersion liquid is left to stand at 25° C. for 24 hours after preparation is 1% or more and 60% or less.
    Type: Application
    Filed: June 4, 2018
    Publication date: April 30, 2020
    Inventors: Hiroki Masuda, Yuuki Sawada, Akira Nakasuga, Akihiko Fujiwara
  • Patent number: 10634758
    Abstract: In accordance with an embodiment, a positioning apparatus comprises a first interface and a processor. The first interface receives a positioning signal. The processor sets an interval for searching the positioning signal with a first interface to a first searching interval, sets the interval for searching the positioning signal to a second searching interval which is shorter than the first searching interval if it is determined that the positioning signal is received through searching in the first searching interval and uses the positioning signal received through searching in the second searching interval to specify a position of the positioning apparatus.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: April 28, 2020
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Shigeo Uchida, Akihiko Fujiwara, Mika Hirama, Kazunori Hirabayashi, Koji Nagai
  • Patent number: 10506364
    Abstract: A positioning server determines a location of a mobile device within an area including a plurality of base stations. The positioning server includes a communication circuit through which positioning data is received, a display device, an input unit, and a controller. The controller is configured to: (i) generate a user interface for display by the display device, the user interface including a user interface element through which a positioning mode of base stations can be defined, and an image of a map of an area in which the mobile device is to be located and icons representing the base stations that are within the area, (ii) store the positioning mode of the base stations in response to the inputs made through the input unit, and (iii) determine the location of the mobile device based on the positioning data and the stored positioning modes of the base stations.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: December 10, 2019
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Akihiko Fujiwara, Kenji Ito, Shigeo Uchida
  • Patent number: 10499198
    Abstract: A positioning device includes a processor configured to calculate a first neighboring time at which the mobile device becomes closest to a first base station in the plurality of base stations based on the received signal strength data and a second neighboring time at which the mobile device becomes closest to a second base station of the plurality of base stations, and convert the relative movement data in the second storage device into position coordinates data specifying an absolute position of the mobile device in an absolute coordinate system using the first base station as a reference point from the first neighboring time to the second neighboring time.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: December 3, 2019
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Yu Yoshiie, Mika Hirama, Akihiko Fujiwara
  • Publication number: 20190324699
    Abstract: An image forming apparatus includes a printer, an input device configured to receive a user input, and a processor configured to acquire identification information that specifies a task in a predetermined service and is input through the input device, acquire document type information about document types used in the predetermined service based on the acquired identification information, generate a code for the task by encoding the acquired identification information, and control the printer to print an image of one of the document types and the generated code on a sheet of paper.
    Type: Application
    Filed: March 11, 2019
    Publication date: October 24, 2019
    Inventors: Akihiko FUJIWARA, Koji NAGAI, Shigeo UCHIDA, Masateru MITANI
  • Publication number: 20190324113
    Abstract: A positioning apparatus comprises an acquiring section which acquires an azimuth angle and an angular velocity of a moving object from values measured by sensors of the moving object moving in a positioning area; a storage section which stores a coefficient of a relational expression established between a moving speed and a standard deviation of the angular velocity of the moving object in association with each of a plurality of division areas for dividing the positioning area; and a positioning section which specifies a division area where the moving object is positioned per unit time to acquire the stored coefficient in association with the division area, and calculates the moving speed in the division area from the coefficient and the standard deviation of the acquired angular velocity to measure a position of the moving object in the positioning area from the moving speed and the acquired azimuth angle.
    Type: Application
    Filed: March 6, 2019
    Publication date: October 24, 2019
    Inventors: Shigeo Uchida, Yu Yoshiie, Akihiko Fujiwara
  • Patent number: 10412908
    Abstract: A hydroponic system (1) is provided with a light-collecting apparatus (3) having a pair of reflecting plates (31a) that are vertically arranged in parallel with a culture surface (23) of a culture panel (21) of a hydroponic unit (2). During a process in which natural light taken from a light-collecting opening (30) propagates while repeatedly reflected by opposing reflecting surfaces of a reflecting plates (31a), by allowing seedlings p that are transplanted into the culture panel (21) to be irradiated with the light through a light-emitting hole (32) bored in the reflecting plate (31a), a culture object can be grown efficiently at a low cost by taking natural light from the outside.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: September 17, 2019
    Assignee: TOYO SEIKAN GROUP HOLDINGS, LTD.
    Inventors: Jun Agari, Katsuhiro Muramoto, Kunio Murai, Takahiro Kamiya, Shinichirou Matsumoto, Kazuto Yoshimura, Akihiko Fujiwara, Shinji Kubo, Mari Nishi, Akane Itoh
  • Publication number: 20190223137
    Abstract: According to one embodiment, a base station as a verification target and a partner base station to be a set of a two-point positioning scheme with the base station as the verification target are detected from a list. It is determined whether the partner base station is already selected as the base station as the verification target. When the detected partner base station is not selected yet, and the detected partner base station is already selected, it is determined whether the base station as the verification target is included in the adjacent candidate base stations with respect to the partner base station. When the base station as the verification target is included in the adjacent candidate base stations, the base station as the verification target and the partner base station, which is determined to be already selected, are confirmed as a pair of base stations.
    Type: Application
    Filed: January 9, 2019
    Publication date: July 18, 2019
    Inventor: Akihiko Fujiwara
  • Publication number: 20190208367
    Abstract: A positioning device includes a processor configured to calculate a first neighboring time at which the mobile device becomes closest to a first base station in the plurality of base stations based on the received signal strength data and a second neighboring time at which the mobile device becomes closest to a second base station of the plurality of base stations, and convert the relative movement data in the second storage device into position coordinates data specifying an absolute position of the mobile device in an absolute coordinate system using the first base station as a reference point from the first neighboring time to the second neighboring time.
    Type: Application
    Filed: March 11, 2019
    Publication date: July 4, 2019
    Inventors: Yu Yoshiie, Mika Hirama, Akihiko Fujiwara
  • Patent number: 10318989
    Abstract: A method for providing information related to information displayed on a signage device to a mobile device carried by a user includes displaying on a screen of the signage device one or more images, establishing a connection between a mobile device and the signage device, displaying on the screen of the signage device a mark unique to the user, after the connection has been established, moving the mark on the screen in accordance with an operation of the mobile device by the user, and transmitting, to the mobile device, information related to an image at which the mark is located.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: June 11, 2019
    Assignee: Toshiba TEC Kabushiki Kaisha
    Inventors: Akihiko Fujiwara, Mika Hirama, Masaaki Yasunaga, Tetsuya Nobuoka
  • Publication number: 20190173087
    Abstract: There is provided an electrode material for electricity storage devices, which enables suppression of heat generation in charge and discharge at large currents. The electrode material for electricity storage devices comprises a first carbon material having a graphite structure wherein graphite is partially exfoliated, and a second carbon material different from the first carbon material, wherein the ratio A/B, where A represents a weight of the first carbon material and B represents a weight of the second carbon material, is within the range of 0.01 or higher and 100 or lower.
    Type: Application
    Filed: August 29, 2017
    Publication date: June 6, 2019
    Inventors: Yuuki Sawada, Hiroki Masuda, Akira Nakasuga, Akihiko Fujiwara, Takuya Wada
  • Publication number: 20190147833
    Abstract: A content providing apparatus includes a selecting unit, a setting unit, and an output unit. The selecting unit selects additional information output while being superimposed on content output to a display device. The setting unit sets the additional information selected by the selecting unit in any position overlapping the content. The output unit outputs the content, for which the additional information is set by the setting unit, to the display device.
    Type: Application
    Filed: November 2, 2018
    Publication date: May 16, 2019
    Applicant: Toshiba Tec Kabushiki Kaisha
    Inventors: Mika Hirama, Akihiko Fujiwara, Masami Takahata, Ryuichi Aoyama
  • Publication number: 20190147615
    Abstract: An information providing apparatus including a detection unit of at least one computer, a decision unit of the at least one computer, and a sound control circuit. The detection unit detects a position and a movement direction of a moving object in an area in which an article, corresponding to information that is provided, is disposed. The decision unit decides a direction in which the information is provided to the moving object from a relationship between the position of the moving object, the movement direction of the moving object, and a position in the area of the article. The sound control circuit controls a sound output attached to the moving object to localize a sound image according to the information in the direction decided.
    Type: Application
    Filed: November 2, 2018
    Publication date: May 16, 2019
    Applicant: Toshiba Tee Kabushiki Kaisha
    Inventors: Akihiko Fujiwara, Mika Hirama, Masami Takahata, Ryuichi Aoyama
  • Patent number: 10257659
    Abstract: A positioning device includes a first storage device having stored therein received signal strength data in time series according to mobile device data, a second storage device having stored therein relative movement data of the mobile device in time series within a relative coordinate system, and a processor configured to calculate a first neighboring time at which the mobile device becomes closest to a first base station in the plurality of base stations based on the received signal strength data and a second neighboring time at which the mobile device becomes closest to a second base station of the plurality of base stations, and convert the relative movement data in the second storage device into position coordinates data specifying an absolute position of the mobile device in an absolute coordinate system using the first base station as a reference point from the first neighboring time to the second neighboring time.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: April 9, 2019
    Assignee: Toshiba TEC Kabushiki Kaisha
    Inventors: Yu Yoshiie, Mika Hirama, Akihiko Fujiwara
  • Patent number: 10247198
    Abstract: The object is to provide a compressor housing which can suppress blowback of oil. A compressor housing (1) is used in a compressor which uses a compressor impeller (5) provided in an intake air flow path more to a downstream side than a blow-by gas inlet. The compressor housing (1) includes an impeller chamber (2), and an intake air duct (6) which extends along an axis line (C). The duct (6) includes an inner-wall face (61). A step part (67) that is arc shaped along a circumferential direction of the impeller (5) and has a distance along the radial direction of the impeller (5) from the axis line (C) that is farther at a downstream side than at an upstream side thereof is formed in the inner-wall face (61) more to an upstream side along the axis line (C) than the intake air inlet (22).
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: April 2, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Akihiko Fujiwara, Atsushi Shimizu, Shota Kadokura
  • Publication number: 20190014442
    Abstract: A positioning device includes a first storage device having stored therein received signal strength data in time series according to mobile device data, a second storage device having stored therein relative movement data of the mobile device in time series within a relative coordinate system, and a processor configured to calculate a first neighboring time at which the mobile device becomes closest to a first base station in the plurality of base stations based on the received signal strength data and a second neighboring time at which the mobile device becomes closest to a second base station of the plurality of base stations, and convert the relative movement data in the second storage device into position coordinates data specifying an absolute position of the mobile device in an absolute coordinate system using the first base station as a reference point from the first neighboring time to the second neighboring time.
    Type: Application
    Filed: March 21, 2018
    Publication date: January 10, 2019
    Inventors: Yu Yoshiie, Mika Hirama, Akihiko Fujiwara