Patents by Inventor Hiromasa Takahashi

Hiromasa Takahashi 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: 20200205146
    Abstract: To provide a technique for suppressing interference caused by inter-modulation distortion in dual connectivity between a plurality of radio communication systems using different RATs. An aspect of the present invention relates to user equipment including an interference indication generator that generates an interference indication including interfered carrier information that indicates a serving carrier that receives intra-device interference; and a transmitter-receiver that transmits the interference indication to a base station.
    Type: Application
    Filed: June 1, 2018
    Publication date: June 25, 2020
    Applicant: NTT DOCOMO, INC.
    Inventors: Hideaki Takahashi, Hiromasa Umeda, Kei Andou
  • Patent number: 10677272
    Abstract: Provided is a construction machine capable of detecting a stuck-open state of a surplus flow control valve in real time during operation without involving a reduction in the operational speed.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: June 9, 2020
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Teppei Saitoh, Juri Shimizu, Kenji Hiraku, Hiromasa Takahashi, Shouhei Sugiki
  • Patent number: 10655740
    Abstract: A work machine includes a closed circuit system in which there is provided a flushing valve.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: May 19, 2020
    Assignee: HITACHI CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Juri Shimizu, Teppei Saitoh, Kenji Hiraku, Yuki Akiyama, Hiromasa Takahashi
  • Publication number: 20200131736
    Abstract: Provided is a work machine that can selectively establish a closed circuit connection between a single rod-type hydraulic cylinder and a plurality of bidirectional-type hydraulic pumps, the work machine being capable of enhancing responsiveness of the single rod-type hydraulic cylinder when a high-speed lever switching operation is conducted in a state in which a rod pressure of the single rod-type hydraulic cylinder is higher than a bottom pressure. When a bucket lever (70a) is operated to a side of extending the bucket cylinder in a state in which a pressure in a rod chamber (5b) of the bucket cylinder (5) is higher than a pressure in a bottom chamber (5a), a controller (50) opens a rod-side proportional valve (45) and discharges a working fluid in the rod chamber to a working fluid tank (25) such that a differential pressure between the pressure in the rod chamber and the pressure in the bottom chamber is reduced below a switching pressure (Psw) of a flushing valve (33).
    Type: Application
    Filed: April 6, 2018
    Publication date: April 30, 2020
    Inventors: Juri SHIMIZU, Kenji HIRAKU, Hiromasa TAKAHASHI, Shohei SUGIKI
  • Publication number: 20200115887
    Abstract: A construction machine is provided which includes a hydraulic closed circuit in which a single rod hydraulic cylinder is driven directly by a bidirectionally tiltable variable displacement pump and can stably speed up the contraction action of the single rod hydraulic cylinder. In the case where a contraction action of a hydraulic cylinder 10 is instructed through an operation lever 30, when a differential pressure obtained by subtracting the pressure of a cap chamber 10a from the pressure of a rod chamber 10b is equal to or lower than a first threshold value a set to a level equal to or higher than a selection setting pressure of a flushing valve 14, a controller 20 closes a rod side selector valve 12b to disable rod assist action for supplying hydraulic fluid from a second hydraulic pump 8 to the rod chamber, and when the differential pressure is higher than the first threshold value, the controller 20 opens the rod side selector valve to enable the rod assist action.
    Type: Application
    Filed: January 16, 2018
    Publication date: April 16, 2020
    Inventors: Hiromasa TAKAHASHI, Shohei SUGIKI, Kenji HIRAKU, Juri SHIMIZU, Teppei SAITOH
  • Patent number: 10597001
    Abstract: A plate for an electro-thermal window includes a heatable transparent conductive film, and bus bars that feed power to the transparent conductive film. The bus bars include a left bus bar connected to a left side edge and a right bus bar connected to a right side edge of the transparent conductive film. The transparent conductive film is divided into regions by a slit continuously or discontinuously formed from the left bus bar to the right bus bar. The regions include first and second regions. A distance between the left bus bar and the right bus bar of the first region is shorter than a distance between the left bus bar and the right bus bar of the second region. A width of the first region in a direction orthogonal to the slit is shorter than a width of the second region in the direction.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: March 24, 2020
    Assignee: AGC Inc.
    Inventors: Osamu Kagaya, Hiromasa Tominaga, Tomohiro Takahashi
  • Patent number: 10582377
    Abstract: Techniques are disclosed for controlling carrier aggregation appropriately in a radio communication system having a mixture of harmonic measure equipped user equipments and harmonic measure unequipped user equipments. One aspect of the present invention relates to user equipment having a carrier aggregation function. The user equipment manages requirements regarding transmission and reception characteristics supported by the user equipment for respective combinations of carrier aggregation frequency bands and uses an identifier for identifying a combination of channel bandwidths supported for a combination of inter-band carrier aggregation capable frequency bands to report the requirements as capability information to a base station.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: March 3, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Hideaki Takahashi, Hiromasa Umeda, Kunihiko Teshima
  • Publication number: 20200053330
    Abstract: The present disclosure relates to an image processing apparatus and method that enable suppression of a reduction in subjective image quality. Image processing is performed on each of a plurality of frame images before projection. The image processing suppresses an influence of superimposition of the plurality of frame images in a projection image in projecting each of the plurality of frame images cyclically using a corresponding one of a plurality of projection sections. The plurality of frame images is included in a moving image. The present disclosure can be applied to, for example, an image processing apparatus, an image projection apparatus, a control apparatus, an information processing apparatus, an image projection system, an image processing method, a program, or the like.
    Type: Application
    Filed: February 26, 2018
    Publication date: February 13, 2020
    Inventors: NORIAKI TAKAHASHI, TAKAHIRO NAGANO, HIROMASA NAGANUMA
  • Publication number: 20200036860
    Abstract: An image reading device includes a document placing table, and a cover. The cover is rotatably attached to the document placing table, and includes a receptacle for a portable terminal with a camera, the receptacle being configured to hold the portable terminal so that the camera faces the document placing table.
    Type: Application
    Filed: October 8, 2019
    Publication date: January 30, 2020
    Inventors: Masaki TAKAHASHI, Naomi NAKANE, Hiromasa TANAKA, Akihiro MORO, Sunao TABATA, Takahiro FUCHIGAMI, Nobuaki TAKAHASHI
  • Patent number: 10491780
    Abstract: An image reading device includes a document placing table, and a cover. The cover is rotatably attached to the document placing table, and includes a receptacle for a portable terminal with a camera, the receptacle being configured to hold the portable terminal so that the camera faces the document placing table.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: November 26, 2019
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Masaki Takahashi, Naomi Nakane, Hiromasa Tanaka, Akihiro Moro, Sunao Tabata, Takahiro Fuchigami, Nobuaki Takahashi
  • Publication number: 20190352884
    Abstract: A construction machine includes a bidirectionally tiltable type hydraulic pump 2, a hydraulic cylinder 1 having a cap chamber 1e and a rod chamber 1f, a first flow path 11 connecting the hydraulic pump 2 and the cap chamber 1e, a second flow path 12 connecting the hydraulic pump 2 and the rod chamber 1f, a discharge flow path 16 branched from the first flow path 11, a discharge valve 32 that is disposed in the discharge flow path 16 and controls a discharge rate of hydraulic working oil from the cap chamber 1e to the discharge flow path 16, an operation device 54 that instructs an action of the hydraulic cylinder 1, and a controller 56.
    Type: Application
    Filed: November 7, 2017
    Publication date: November 21, 2019
    Inventors: Takamasa KAI, Hiromasa TAKAHASHI, Teppei SAITOH, Juri SHIMIZU
  • Publication number: 20190345692
    Abstract: A construction machine incorporates a hydraulic closed circuit system capable of suppressing, even where a selector valve is stuck in an open state by a failure of the selector valve or a control system therefor, unintended operation of a hydraulic actuator and continuing operation of a machine body. The construction machine includes first sensors that detect open-closed states of a plurality of switching valves, first compulsory valve closing devices that change over the plurality of switching valves to a closed position irrespective of open-close control by a machine body controller, and a valve device controller that controls, when it is detected based on the open-closed states of the plurality of selector values detected by the first sensors that one of the plurality of selector values is stuck in an open state, the first compulsory valve closing device such that other selector valve connected to one of the plurality of closed circuit pumps to which the one selector valve is connected is closed.
    Type: Application
    Filed: February 6, 2018
    Publication date: November 14, 2019
    Inventors: Teppei SAITOH, Takamasa KAI, Kenji HIRAKU, Hiromasa TAKAHASHI, Juri SHIMIZU
  • Patent number: 10476702
    Abstract: There is provided user equipment for communicating with a base station in a radio communication system supporting carrier aggregation, the user equipment including a generator that generates band combination information indicating one or more band combinations capable of being used for the carrier aggregation in the user equipment; and a transmitter that transmits the generated band combination information to the base station, wherein the generator generates the band combination information including highest band combination information indicating a highest band combination having a largest number of CCs to be combined, among the one or more band combinations capable of being used for the carrier aggregation in the user equipment.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: November 12, 2019
    Assignee: NTT DOCOMO, INC.
    Inventors: Hideaki Takahashi, Hiromasa Umeda, Wuri Andarmawanti Hapsari, Tooru Uchino
  • Patent number: 10433296
    Abstract: A user terminal carries out radio communication with a plurality of cells by employing carrier aggregation, and has a receiver that, when a connection is established with a TDD cell, receives information about a given DL/UL configuration that is selected from a plurality of DL/UL configurations, and a processor that controls transmission and reception to and from the TDD cell, and a DL/UL configuration to carry out DL communication in all subframes is included as one in the plurality of DL/UL configurations, and the processor uses the DL/UL configuration to carry out DL communication in all subframes as one of the DL/UL configurations only when the connecting TDD cell is a secondary cell. If so, the processor feeds back an A/N in response to each DL subframe of the secondary cell by using a given UL subframe of a primary cell.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: October 1, 2019
    Assignee: NTT DOCOMO, INC.
    Inventors: Kazuki Takeda, Kazuaki Takeda, Hideaki Takahashi, Hiromasa Umeda, Satoshi Nagata
  • Patent number: 10415215
    Abstract: A drive system for a construction machine capable of appropriately controlling a distribution flow rate to each hydraulic actuator and improving operability by an operator is provided.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: September 17, 2019
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Hiromasa Takahashi, Kenji Hiraku, Juri Shimizu, Shohei Sugiki
  • Patent number: 10397923
    Abstract: A user equipment that includes a transmission and reception unit configured to transmit and receive a radio signal to and from a base station and a capability information indication unit configured to transmit capability information to the base station. The capability information indicates carrier aggregation (CA) capable carrier combinations as well as bandwidths of the respective carriers. The capability information indication unit indicates that all carrier combinations indicated in the capability information are CA capable.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: August 27, 2019
    Assignee: NTT DOCOMO, INC.
    Inventors: Hideaki Takahashi, Hiromasa Umeda
  • Patent number: 10379364
    Abstract: A head-mounted display includes a mounting fixture mounted on a user's head, an image display device including an image light unit that generates image light, a half mirror, and a casing, a connection fixture that mounts the image display device with respect to the mounting fixture, a first ball joint that connects the mounting fixture and the connection fixture, and a second ball joint that connects the image display device and the connection fixture. The connection fixture holds the image display device in front of a user's eyes. The second ball joint extends in right and left directions, and rotatably supports the image display device with respect to the connection fixture in a state in which a rotational axis, disposed on a rear side of the image display device, is set as a supporting point. The second ball joint changes a direction of image light that is emitted.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: August 13, 2019
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Hiromasa Takahashi
  • Patent number: 10377487
    Abstract: A display device, configured to display an image photographed by a camera mounted on a remotely controlled mobile object, includes a display part which is mountable on a head of a user and capable of displaying an image, a receiving part configured to receive a photographed image and position information of the mobile object transmitted from the mobile object, a position detection part configured to detect a position of the display part, a direction detection part configured to detect a direction of the display part, and a controller configured to control image displaying on the display part, determine whether the mobile object exists in the direction of the display part and within a particular range with respect to a position of the display part, and switch images to be displayed on the display part depending on whether the mobile object exists within the particular range or not.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: August 13, 2019
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Hiromasa Takahashi
  • Patent number: 10378185
    Abstract: To provide a work machine capable of efficiently regenerating the energy owned by hydraulic fluid during a swing deceleration.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: August 13, 2019
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Teppei Saitoh, Yuki Akiyama, Kenji Hiraku, Hiromasa Takahashi, Juri Shimizu
  • Patent number: 10370824
    Abstract: To provide a work machine which, in a configuration provided with a closed-circuit pump and an open-circuit pump, is capable of stabilizing respective pump operations of the closed-circuit pump and the open-circuit pump and of improving the mountability of the closed-circuit pump and the open-circuit pump. The present invention is provided with a closed circuit in which a closed-circuit pump and a boom cylinder are connected annularly, and an open circuit which has an open-circuit pump for making hydraulic fluid flow in from a reservoir and flow out and a connection passage capable of introducing hydraulic fluid into the closed circuit, wherein the closed-circuit pump is installed above the open-circuit pump.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: August 6, 2019
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Kenji Hiraku, Hiromasa Takahashi