Patents by Inventor Tetsuya Yokoyama

Tetsuya Yokoyama 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: 20220011135
    Abstract: The disclosure provides an information processing apparatus, an information processing system, and an information processing method capable of allowing a user to approach a destination intuitively. An information processing apparatus according to the present technology includes a position-coordinate acquisition part, a direction acquisition part, a direction calculation part, and a haptic-feedback determining part. The position-coordinate acquisition part acquires a position coordinate of the information processing apparatus. The direction acquisition part acquires an apparatus direction that the information processing apparatus faces. The direction calculation part calculates a target direction being a direction of a target with respect to the information processing apparatus from a position coordinate of the target and the position coordinate of the information processing apparatus.
    Type: Application
    Filed: September 24, 2021
    Publication date: January 13, 2022
    Inventors: Ryo YOKOYAMA, Akira ONO, Tetsuya NARUSE, Mikio TAKENAKA, Ryosuke MURAKAMI, Hideaki HAYASHI, Mioko AMBE, Ryosuke TAKEUCHI, Kazutoshi OHNO, Seiji MURAMATSU, Tetsuya TAKAHASHI
  • Patent number: 10895188
    Abstract: An exhaust gas purifier including a casing, SCR catalysts (comprising a first SCR catalyst and a second SCR catalyst), a first backflow prevention plate, and a second backflow prevention plate. In the casing, at least a part of the catalyst passage and at least a part of the bypass passage are formed. The SCR catalysts are disposed in the catalyst passage and selectively reduce NOx included in an exhaust gas flowing in the catalyst passage. The first backflow prevention plate prevents or reduces a backflow of an exhaust gas from a second exhaust passage to the catalyst passage.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: January 19, 2021
    Assignee: YANMAR POWER TECHNOLOGY CO., LTD.
    Inventors: Ryota Kobayashi, Shunji Hamaoka, Tsuyoshi Inoue, Tetsuya Yokoyama, Yoshinori Fukui, Seita Akimoto, Kenya Onishi, Kazuki Hirai
  • Patent number: 10843782
    Abstract: A ship including a plurality of engines and a plurality of exhaust gas purifiers provided on respective exhaust paths for exhaust gas from the engines. Each exhaust gas purifier includes a casing and an opening. The casing accommodates a purification catalyst for purifying the exhaust gas. The opening serves to place the purification catalyst into or displace the purification catalyst from the casing. The exhaust gas purifiers are arranged so that the respective openings of the exhaust gas purifiers face an identical space, and operation directions of an operation performed through the openings in at least two of the exhaust gas purifiers cross.
    Type: Grant
    Filed: July 4, 2017
    Date of Patent: November 24, 2020
    Assignee: YANMAR POWER TECHNOLOGY CO., LTD.
    Inventors: Shunji Hamaoka, Tetsuya Yokoyama
  • Patent number: 10842682
    Abstract: A nonwoven fabric layered body, including: an elastic nonwoven fabric; and an extensible spunbond nonwoven fabric that is disposed on at least one surface side of the elastic nonwoven fabric and that has a degree of maximum load elongation of 50% or more in at least one direction, the nonwoven fabric layered body satisfying the following (1) and (2). (1) The elastic nonwoven fabric includes a resin composition containing a specific low-crystalline polypropylene, and an ?-olefin copolymer A containing an ethylene-derived constitutional unit and a propylene-derived constitutional unit, and having a melting point of 100° C. or more and a crystallization degree of 15% or less. (2) The resin composition contains from 5 parts by mass to 50 parts by mass of the ?-olefin copolymer A with respect to 100 parts by mass of the resin composition.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: November 24, 2020
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Shouichi Takaku, Kenichi Suzuki, Tetsuya Yokoyama, Koichi Shimada
  • Patent number: 10605144
    Abstract: An exhaust gas purification device for a ship including: a main path communicated with outside and a bypass path branching off from a midway portion of the main path, each of the paths serving as an exhaust gas path of an engine to be mounted in the ship. A partition plate, by which the main and bypass paths are partitioned from the upstream side to the downstream side in an exhaust gas traveling direction, extends along the exhaust gas traveling direction. The partition plate has a downstream end extended through between an exhaust gas outflow port of the purification casing and an exhaust gas outlet of the main path, and the downstream end is formed with an opening to serve as a reverse-flow prevention plate.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: March 31, 2020
    Assignee: YANMAR CO., LTD.
    Inventors: Ryota Kobayashi, Tsuyoshi Inoue, Tetsuya Yokoyama, Yasuyuki Takahata, Shunji Hamaoka
  • Patent number: 10598601
    Abstract: A gas concentration measuring device including a light emitter and a light receiver which are disposed so as to be opposed to each other with a hollow tube-like measurement pipe interposed therebetween. The device is configured to measure concentration of target gas passing through the measurement pipe using light applied from the light emitter, transmitted through the inside of the measurement pipe, and received by the light receiver. Purge gas guide pipes through which purge gas is introduced into optical systems of the light emitter and the light receiver are connected to a side wall of the measurement pipe. The measurement pipe includes a gas entrance portion having a tapered shape widening from a gas supply port toward a downstream side thereof.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: March 24, 2020
    Assignees: YANMAR CO., LTD., FUJI ELECTRIC CO., LTD.
    Inventors: Yoshinori Fukui, Ryota Kobayashi, Tetsuya Yokoyama, Tsuyoshi Inoue, Yusuke Oda, Michiyasu Okada, Kozo Akao, Ryouichi Higashi
  • Publication number: 20200040789
    Abstract: An exhaust gas purifier including a casing, SCR catalysts (comprising a first SCR catalyst and a second SCR catalyst), a first backflow prevention plate, and a second backflow prevention plate. In the casing, at least a part of the catalyst passage and at least a part of the bypass passage are formed. The SCR catalysts are disposed in the catalyst passage and selectively reduce NOx included in an exhaust gas flowing in the catalyst passage. The first backflow prevention plate prevents or reduces a backflow of an exhaust gas from a second exhaust passage to the catalyst passage.
    Type: Application
    Filed: November 22, 2017
    Publication date: February 6, 2020
    Applicant: Yanmar Co., Ltd.
    Inventors: Ryota KOBAYASHI, Shunji HAMAOKA, Tsuyoshi INOUE, Tetsuya YOKOYAMA, Yoshinori FUKUI, Seita AKIMOTO, Kenya ONISHI, Kazuki HIRAI
  • Patent number: 10518217
    Abstract: A catalytic reactor including: catalytic cassettes each including a catalyst part configured to reduce NOx in exhaust gas and an outer peripheral part made of a frame covering side surfaces of the catalyst part; and a lattice frame on which the catalytic cassettes are placed. The lattice frame includes a plurality of inflow holes through which exhaust gas flows into the catalyst parts and a plurality of frame parts which defines the respective plurality of inflow holes. The outer peripheral part of each of the catalytic cassettes is positioned so that the outer peripheral part is accommodated in a respective one of the frame parts.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: December 31, 2019
    Assignee: YANMAR CO., LTD.
    Inventors: Tetsuya Yokoyama, Arata Hayata, Ryota Kobayashi
  • Publication number: 20190329477
    Abstract: Provided is a method for manufacturing a container including a casing configured to contain a content, the casing including an inner layer having an inner layer opening and an outer layer having an air communication port communicating between a space between the outer layer and the inner layer and the outside. The method includes preparing a casing in which at least part of the inner layer and at least part of the outer layer are in contact with each other, inserting a support column inside the inner layer through the inner layer opening of the prepared casing, and separating the inner layer from the outer layer by supplying air into the space through the air communication port to bring part of the separated inner layer into contact with the support column. The support column includes a columnar portion and an extending portion extending from the columnar portion.
    Type: Application
    Filed: April 18, 2019
    Publication date: October 31, 2019
    Inventors: Tetsuya Yokoyama, Shigeki Fukui, Hitoshi Takada, Akira Shiba
  • Patent number: 10443469
    Abstract: An exhaust gas purification system includes, as an exhaust gas path of an engine to be mounted in a ship, a main path which is in communication with outside, a bypass path which branches off from a halfway portion of the main path, and a combined casing with which both the main path and the bypass path are in communication. A selective catalyst reduction device is accommodated in the combined casing at a location close to the main path. A path-switching member which switches exhaust gas moving direction is placed in a branched portion between the main path and the bypass path. A reducing agent injection body is placed in the main path between the path-switching member and the combined casing.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: October 15, 2019
    Assignee: YANMAR CO., LTD.
    Inventors: Tetsuya Yokoyama, Tsuyoshi Inoue, Yasuyuki Takahata, Shunji Hamaoka
  • Patent number: 10413874
    Abstract: An exhaust gas purification device including: a spray nozzle provided in an exhaust pipe of an engine; a mixer provided downstream of the spray nozzle in a flow direction of exhaust gas; and a catalyst reactor provided downstream of the mixer. The exhaust gas purification device is configured to spray a reducing agent from the urea water spray nozzle to the exhaust gas from the engine, to mix the reducing agent with the exhaust gas in the mixer, and to reduce nitrogen oxides in the exhaust gas using the catalyst reactor. The mixer includes a cylindrical body and a plurality of fins arranged in the cylindrical body radially outward with respect to the axis of the cylindrical body. The upstream portion of each fin is shaped to provide a cutoff portion.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: September 17, 2019
    Assignee: YANMAR CO., LTD.
    Inventors: Ryota Kobayashi, Tetsuya Yokoyama, Yoshinori Fukui, Keiichi Tsujimoto, Kenya Onishi
  • Publication number: 20190111388
    Abstract: A catalytic reactor including: catalytic cassettes each including a catalyst part configured to reduce NOx in exhaust gas and an outer peripheral part made of a frame covering side surfaces of the catalyst part; and a lattice frame on which the catalytic cassettes are placed. The lattice frame includes a plurality of inflow holes through which exhaust gas flows into the catalyst parts and a plurality of frame parts which defines the respective plurality of inflow holes. The outer peripheral part of each of the catalytic cassettes is positioned so that the outer peripheral part is accommodated in a respective one of the frame parts.
    Type: Application
    Filed: August 23, 2016
    Publication date: April 18, 2019
    Applicant: Yanmar Co., Ltd.
    Inventors: Tetsuya YOKOYAMA, Arata HAYATA, Ryota KOBAYASHI
  • Patent number: 10253681
    Abstract: An engine device which can simplify a supply air cooling structure of an engine as well as simplifying a support structure of a first supercharger and a second supercharger. In an engine device in which the first supercharger and the second supercharger are arranged in series in an exhaust gas discharge channel of the engine, the first supercharger and the second supercharger are arranged in one side surface of the engine, the second supercharger is arranged so as to be close to the one side surface of the engine, and the first supercharger is arranged so as to be away from the one side surface of the engine.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: April 9, 2019
    Assignee: Yanmar Co., Ltd.
    Inventors: Shunji Hamaoka, Fumihiro Nishimura, Tetsuya Yokoyama
  • Patent number: 10151261
    Abstract: A stop control system includes a direct-injection type internal combustion engine, a fuel injection valve, an accessory configured to be driven by the internal combustion engine, and a controller configured to operate the internal combustion engine. The controller is configured to control the accessory during a period from start of fuel cut to a moment immediately after the internal combustion engine stops, such that when the internal combustion engine stops completely, the output shaft comes, in a rotational direction, to a target stop position where an intake port is closed.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: December 11, 2018
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Tetsuya Yokoyama, Ryoji Kagawa
  • Publication number: 20180340458
    Abstract: An exhaust gas purification device for a ship 1 including: a main path 31 communicated with outside and a bypass path 32 branching off from a midway portion of the main path 31, each of the paths serving as an exhaust gas path 30 of an engine 25 to be mounted in the ship 1. A partition plate 40, by which the main and bypass paths 31, 32 are partitioned from the upstream side to the downstream side in an exhaust gas traveling direction, extends along the exhaust gas traveling direction. The partition plate 40 has a downstream end extended through between an exhaust gas outflow port 49 of the purification casing 33 and an exhaust gas outlet of the main path 31, and the downstream end is formed with an opening 401 to serve as a reverse-flow prevention plate 400.
    Type: Application
    Filed: May 27, 2016
    Publication date: November 29, 2018
    Applicant: Yanmar Co., Ltd.
    Inventors: Ryota KOBAYASHI, Tsuyoshi INOUE, Tetsuya YOKOYAMA, Yasuyuki TAKAHATA, Shunji HAMAOKA
  • Patent number: 10125651
    Abstract: An exhaust purification system for a ship includes a main path in communication with the outside and a bypass path branched from an intermediate portion of the main path, each serving as a discharge path for an engine installed in the ship. The main path and the bypass path are provided with and opened and closed by respective fluid operated switching valves of a normally open type.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: November 13, 2018
    Assignee: Yanmar Co., Ltd.
    Inventors: Yasuyuki Takahata, Tetsuya Yokoyama, Tsuyoshi Inoue
  • Publication number: 20180264422
    Abstract: An exhaust gas purification device (1) including: a spray nozzle (2) provided in an exhaust pipe of an engine (18); a mixer (11) provided downstream of the spray nozzle in a flow direction of exhaust gas; and a catalyst reactor (12) provided downstream of the mixer. The exhaust gas purification device is configured to spray a reducing agent from the urea water spray nozzle to the exhaust gas from the engine, to mix the reducing agent with the exhaust gas in the mixer, and to reduce nitrogen oxides in the exhaust gas using the catalyst reactor. The mixer includes a cylindrical body (21) and a plurality of fins (22) arranged in the cylindrical body radially outward with respect to the axis of the cylindrical body. The upstream portion of each fin is shaped to provide a cutoff portion (221).
    Type: Application
    Filed: June 17, 2016
    Publication date: September 20, 2018
    Applicant: Yanmar Co., Ltd.
    Inventors: Ryota KOBAYASHI, Tetsuya YOKOYAMA, Yoshinori FUKUI, Keiichi TSUJMOTO, Kenya ONISHI
  • Patent number: 9970364
    Abstract: A vehicle includes a generator, an internal combustion engine for driving the generator, a catalytic device, and a controller for controlling the operation of the internal combustion engine. At a start of the internal combustion engine to allow the generator to start generating electricity, the controller, until the catalytic device reaches an activated state, operates the internal combustion engine in a warm-up mode such that the driving force of the internal combustion engine for driving the generator is below a value at which electricity is generated, and the controller, after the catalytic device reaches the activated state, operates the internal combustion engine in an electricity generating operating mode such that the driving force of the internal combustion engine is enhanced to the value at which electricity is generated to allow the generator to generate a predetermined quantity of electricity.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: May 15, 2018
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Tetsuya Yokoyama, Kiyotaka Tanaka, Hiromi Yoshioka, Yasutaka Sakura
  • Patent number: 9956673
    Abstract: A tightening tool such as a torque wrench is provided in which electric power can be fed to an electronic circuit with eliminating the need for a battery and achieving daily maintenance-free. In the tightening tool, when a tightening torque has reached a set torque value and a torque limiter is actuated, an electronic circuit unit that has obtained a detection signal outputted from a torque limiter actuation detection unit outputs a tightening completion signal. The tightening tool has a power generation unit for feeding electric power to the electronic circuit unit at least during the actuation of the torque limiter. The power generation unit performs photovoltaic power generation, electromagnetic induction power generation, power generation by conversion from mechanical energy into electrical energy, or temperature difference power generation.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: May 1, 2018
    Assignee: TOHNICHI MFG. CO., LTD.
    Inventors: Tetsuya Yokoyama, Yasuhiro Yamamoto, Tomohiro Ogata, Satoshi Takaku
  • Publication number: 20180084931
    Abstract: A transmission apparatus includes a plurality of blades mounted in a juxtaposed relationship in an open rack and including a first blade and a second blade disposed next to the first blade, wherein the second blade includes: a sensor, and a processor coupled to the sensor and configured to: receive first position information indicating a mounting position of the first blade from the first blade, measure a distance between the first blade and the second blade using the sensor, and calculate second position information indicating a mounting position of the second blade based on the first position information and the measured distance.
    Type: Application
    Filed: August 3, 2017
    Publication date: March 29, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Tetsuya YOKOYAMA, Takashi HONDA