Patents by Inventor Takuya Yoshikawa

Takuya Yoshikawa 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: 20200355252
    Abstract: A torsional vibration damper that a torsional vibration damper having a planetary gear unit, and a manufacturing method of the torsional vibration damper for limiting damages on gears of the planetary gear unit due to dimension errors. In the planetary gear unit, at least one of a sun gear, a ring gear, and a set of planetary gears is/are formed by a press forming method. The gear formed by the press forming method is engaged with the remaining gears in such a manner that a thinner portion of each tooth is individually engaged with a thicker portion of the adjacent teeth of the remaining gears.
    Type: Application
    Filed: April 27, 2020
    Publication date: November 12, 2020
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD., AISIN AW INDUSTRIES CO., LTD.
    Inventors: Masayuki ISHIBASHI, Hideyuki NISHIDA, Yoichi OI, Takuya YOSHIKAWA, Katsunori TANAKA, Tomoyuki HIRAMOTO
  • Publication number: 20200278008
    Abstract: A torsional vibration damper whose vibration damping performance will not be reduced in a high speed range. In the torsional vibration damper, a planetary gear is oscillated within a first oscillating range when a torsional torque is smaller than a reference torque, and within a second oscillating range when the torsional torque is greater than the reference torque. Each backlash between the pinion gear and at least one of a sun gear and a ring gear within the second oscillating range is individually wider than each backlash between the pinion gear and the sun gear and each backlash between the pinion gear and the ring gear within the first oscillating range.
    Type: Application
    Filed: February 25, 2020
    Publication date: September 3, 2020
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD., AISIN AW INDUSTRIES CO., LTD.
    Inventors: Masayuki ISHIBASHI, Hideyuki NISHIDA, lsamu HACHISUWA, Yoichi OI, Takuya YOSHIKAWA, Ryosuke OTSUKA, Katsunori TANAKA, Tomoyuki HIRAMOTO
  • Publication number: 20200263760
    Abstract: A damper device including an input element and an output element; an elastic body transmitting torque between the input element and the output element; and a rotary inertia mass damper having a mass body. The rotary inertia mass damper includes a sun gear, a carrier rotatably supporting pinion gears, and a ring gear that meshes with the pinion gears and serving as the mass body. A pair of washers is located on both sides of each pinion gear axially. The ring gear includes an annulus gear having internal teeth meshing with the pinion gears and a weight body fixed to the annulus gear such that the weight body is in contact with a side surface of the annulus gear. An inner circumferential surface of the weight body is supported in a radial direction by a tip of the pinion gear or an outer circumferential surface of the washer.
    Type: Application
    Filed: November 14, 2018
    Publication date: August 20, 2020
    Applicants: AISIN AW CO., LTD., AISIN AW INDUSTRIES CO., LTD
    Inventors: Takuya YOSHIKAWA, Tomonori KINOSHITA, Tetsuro TANIGUCHI, Akiyoshi KATO, Yoichi OI
  • Publication number: 20200263762
    Abstract: A torsional vibration damper that damps torsional vibration effectively in a low-speed range. In the torsional vibration damper, a spring holder is formed by apertures of an input element and an output element, and an elastic member is held in the spring holder. A first moveable range of a planetary element extending from an initial position in a drive direction is wider than a second movable range of the planetary element extending from the initial position in a counter direction.
    Type: Application
    Filed: February 12, 2020
    Publication date: August 20, 2020
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD., AISIN AW INDUSTRIES CO., LTD.
    Inventors: Tomo IWAGAKI, Hideyuki Nishida, Masayuki Ishibashi, Yoichi Ol, Yu Mizukami, Takuya Yoshikawa, Katsunori Tanaka, Tomoyuki Hiramoto
  • Publication number: 20200263761
    Abstract: A damper device includes rotating elements including an input element and an output element, first elastic bodies that each transmit torque between the input element and the output element, a plurality of second elastic bodies that act in parallel with the plurality of first elastic bodies when torque transmitted between the input element and the output element is greater than or equal to a predetermined value, and a rotary inertia mass damper. The rotary inertia mass damper includes a sun gear, a carrier that rotatably supports a plurality of pinion gears, and a ring gear that meshes with the plurality of pinion gears and that serves as a mass body. The plurality of second elastic bodies are located at a different position than the plurality of first elastic bodies in a radial direction of the rotating elements and are circumferentially aligned with the plurality of pinion gears.
    Type: Application
    Filed: November 14, 2018
    Publication date: August 20, 2020
    Applicants: AISIN AW CO., LTD., AISIN AW INDUSTRIES CO., LTD
    Inventors: Takuya YOSHIKAWA, Tomonori KINOSHITA, Tetsuro TANIGUCHI, Akiyoshi KATO, Yoichi OI
  • Patent number: 10746254
    Abstract: An intermediate member includes first and second intermediate members. The first and the second intermediate members are provided with a spring supporting portion that extends along springs and supports the springs from an outer side. An expansion and contraction of the springs enables the intermediate member to be movable in a circumferential direction. Accordingly, sliding distances caused by the expansion and contraction of the first and the second springs become shorter, compared with a configuration where the first and the second spring are supported by the driven member or drive member from the outer side, thereby decreasing an energy loss (hysteresis) caused by the sliding. As a result, a vibration damping performance of the damper device can be improved.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: August 18, 2020
    Assignees: AISIN AW INDUSTRIES CO., LTD, AISIN AW CO., LTD.
    Inventors: Takuya Yoshikawa, Aki Ogawa, Akiyoshi Kato, Ryosuke Otsuka, Kazuyoshi Ito, Masaki Wajima, Kazuhiro Itou
  • Patent number: 10718401
    Abstract: An intermediate member is configured to include first and second intermediate members. Connecting portions that respectively extend outward from the first or the second intermediate plates are coupled with each other at two positions on the same circumference as pinion gears by two rivets (total six rivets at three connecting portions) as viewed in a central axis of the damper device. Such an arrangement enables spaces between the pinion gears to be used effectively, increases spaces for the first spring, the second spring and the inner spring and improves a vibration damping performance of a damper device.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: July 21, 2020
    Assignees: AISIN AW INDUSTRIES CO., LTD, AISIN AW CO., LTD.
    Inventors: Takuya Yoshikawa, Aki Ogawa, Akiyoshi Kato, Ryosuke Otsuka, Kazuyoshi Ito, Masaki Wajima, Kazuhiro Itou
  • Publication number: 20200217395
    Abstract: An intermediate member is configured to include first and second intermediate members. Connecting portions that respectively extend outward from the first or the second intermediate plates are coupled with each other at two positions on the same circumference as pinion gears by two rivets (total six rivets at three connecting portions) as viewed in a central axis of the damper device. Such an arrangement enables spaces between the pinion gears to be used effectively, increases spaces for the first spring, the second spring and the inner spring and improves a vibration damping performance a damper device.
    Type: Application
    Filed: March 18, 2020
    Publication date: July 9, 2020
    Applicants: AISIN AW INDUSTRIES CO., LTD., AISIN AW CO., LTD.
    Inventors: Takuya YOSHIKAWA, Aki OGAWA, Akiyoshi KATO, Ryosuke OTSUKA, Kazuyoshi ITO, Masaki WAJIMA, Kazuhiro ITOU
  • Patent number: 10677313
    Abstract: A rotary inertia mass damper of a damper device is configured to include a planetary gear that includes a driven member with outer teeth, first and second input plate member as a carrier which rotatably supports a plurality of pinion gears, and a ring gear that meshes with the plurality of pinion gears and works as the mass body. The outer teeth of the driven member are arranged to be disposed outside first and second springs in a radial direction of the damper device. The driven member, the plurality of pinion gears and the ring gear are arranged to at least partially overlap with the first and second springs as viewed in the radial direction. A motion of the ring gear in the axial direction is restricted by the plurality of pinion gears.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: June 9, 2020
    Assignees: AISIN AW INDUSTRIES CO., LTD., AISIN AW CO., LTD.
    Inventors: Takuya Yoshikawa, Aki Ogawa, Akiyoshi Kato, Ryosuke Otsuka, Yoshihiro Inoue, Yoshihiro Takikawa, Hiroki Nagai, Masaki Wajima, Takao Sakamoto, Kazuhiro Itou
  • Publication number: 20200114336
    Abstract: An object of the present disclosure is to provide a structured photocatalyst that can effectively prevent aggregation of photocatalyst particles and maintain favorable photocatalytic functionality over a long period of time. A structured photocatalyst including a support of porous structure including a zeolite-type compound and at least one photocatalytic substance present in the support, the support including channels connecting with each other, and the photocatalytic substance including metal oxide nanoparticles and being present at least at the channels of the support.
    Type: Application
    Filed: November 27, 2019
    Publication date: April 16, 2020
    Inventors: Takao Masuda, Yuta Nakasaka, Takuya Yoshikawa, Sadahiro Kato, Masayuki Fukushima, Hiroko Takahashi, Yuichiro Banba, Kaori Sekine
  • Publication number: 20200114335
    Abstract: To provide a highly active structured catalyst for methanol reforming that suppresses the decline in catalytic function and has excellent catalytic function, and a methanol reforming device. A structured catalyst for methanol reforming, including: a support of a porous structure composed of a zeolite-type compound; and a catalytic substance present in the support, in which the support has channels communicating with each other, and the catalytic substance is present at least in the channels of the support.
    Type: Application
    Filed: November 27, 2019
    Publication date: April 16, 2020
    Inventors: Takao MASUDA, Yuta NAKASAKA, Takuya YOSHIKAWA, Sadahiro KATO, Masayuki FUKUSHIMA, Hiroko TAKAHASHI, Yuichiro BANBA, Kaori SEKINE
  • Publication number: 20200114341
    Abstract: To provide a functional structural body that can realize ong life time by suppressing the decline in function of the functional substance and that can attempt to save resources without requiring a complicated replacement operation, and to provide a method for making the functional structural body. The functional structural body (1) includes a skeletal body (10) of a porous structure composed of a zeolite-type compound, and at least one functional substance (20) present in the skeletal body (10), the skeletal body (10) has channels (11) connecting with each other, and the functional substance is present at least the channels (11) of the skeletal body (10).
    Type: Application
    Filed: November 27, 2019
    Publication date: April 16, 2020
    Inventors: Takao MASUDA, Yuta NAKASAKA, Takuya YOSHIKAWA, Sadahiro KATO, Masayuki FUKUSHIMA, Kojiro INAMORI, Hiroko TAKAHASHI, Yuichiro BANBA, Kaori SEKINE
  • Publication number: 20200115248
    Abstract: A functional structural body that can realize a prolonged life time by suppressing the decrease in function and that can fulfill resource saving without requiring a complicated replacement operation is provided. A functional structural body includes a skeletal body of a porous structure composed of a zeolite-type compound; and at least one solid acid present in the skeletal body, the skeletal body has channels connecting with each other, and the solid acid is present at least in the channels of the skeletal body.
    Type: Application
    Filed: November 27, 2019
    Publication date: April 16, 2020
    Inventors: Takao MASUDA, Yuta NAKASAKA, Takuya YOSHIKAWA, Sadahiro KATO, Masayuki FUKUSHIMA, Kojiro INAMORI, Hiroko TAKAHASHI, Yuichiro BANBA, Kaori SEKINE
  • Publication number: 20200114337
    Abstract: Provided are a structured catalyst for aromatic hydrocarbon production and an aromatic hydrocarbon producing device including a structured catalyst for aromatic hydrocarbon production, in which a reduction in catalytic activity is suppressed and an aromatic hydrocarbon can be efficiently produced. A structured catalyst for aromatic hydrocarbon production, including: a support of a porous framework composed of a zeolite-type compound; and at least one catalytic substance present in the support, in which the support has channels communicating with each other, and the catalytic substance is made of metal nanoparticles and is present at least in the channels of the support.
    Type: Application
    Filed: November 27, 2019
    Publication date: April 16, 2020
    Inventors: Takao MASUDA, Yuta NAKASAKA, Takuya YOSHIKAWA, Sadahiro KATO, Masayuki FUKUSHIMA, Hiroko TAKAHASHI, Yuichiro BANBA, Kaori SEKINE
  • Publication number: 20200114338
    Abstract: Provided are a structured catalyst for CO shift or reverse shift that can realize a long life time by suppressing the decline in function, a method for producing the same, a CO shift or reverse shift reactor, a method for producing carbon dioxide and hydrogen, and a method for producing carbon monoxide and water. The structured catalyst for CO shift or reverse shift (1) includes a support (10) of a porous structure composed of a zeolite-type compound, and at least one CO shift or reverse shift catalytic substance (20) present in the support (10), the support (10) has channels (11) connecting with each other, and the CO shift or reverse shift catalytic substance (20) is present at least in the channels (11) of the support (10).
    Type: Application
    Filed: November 27, 2019
    Publication date: April 16, 2020
    Inventors: Takao MASUDA, Yuta NAKASAKA, Takuya YOSHIKAWA, Sadahiro KATO, Masayuki FUKUSHIMA, Hiroko TAKAHASHI, Yuichiro BANBA, Kaori SEKINE
  • Publication number: 20200114339
    Abstract: The structured catalyst for oxidation for exhaust gas purification includes a support having a porous structure constituted by a zeolite-type compound, and at least one type of oxidation catalyst that is present in the support and selected from the group consisting of metal and metal oxide, the support having channels that communicate with each other, and the oxidation catalyst being present in at least the channels of the support.
    Type: Application
    Filed: November 27, 2019
    Publication date: April 16, 2020
    Inventors: Takao MASUDA, Yuta NAKASAKA, Takuya YOSHIKAWA, Sadahiro KATO, Masayuki FUKUSHIMA, Hiroko TAKAHASHI, Yuichiro BANBA, Kaori SEKINE
  • Publication number: 20200115640
    Abstract: Provided is a structured catalyst for hydrodesulfurization that suppresses the decline in catalytic activity and achieves efficient hydrodesulfurization. The structured catalyst for hydrodesulfurization (1) includes a support (10) of a porous structure composed of a zeolite-type compound, and at least one catalytic substance (20) present in the support (10), the support (10) having channels (11) connecting with each other, and the catalytic substance (20) being present at least in the channels (11) of the support (10).
    Type: Application
    Filed: November 27, 2019
    Publication date: April 16, 2020
    Inventors: Takao MASUDA, Yuta NAKASAKA, Takuya YOSHIKAWA, Sadahiro KATO, Masayuki FUKUSHIMA, Hiroko TAKAHASHI, Yuichiro BANBA, Kaori SEKINE
  • Publication number: 20200108378
    Abstract: Provide is a functional structural body that can suppress aggregation of metal oxide nanoparticles and prevent functional loss of metal oxide nanoparticles, and thus exhibit a stable function over a long period of time. A functional structural body (1) includes: a skeletal body (10) of a porous structure composed of a zeolite-type compound; and at least one type of metal oxide nanoparticles (20) containing a perovskite-type oxide present in the skeletal body (10), the skeletal body (10) having channels (11) that connect with each other, and the metal oxide nanoparticles (20) being present at least in the channels (11) of the skeletal body (10).
    Type: Application
    Filed: November 27, 2019
    Publication date: April 9, 2020
    Inventors: Takao MASUDA, Yuta NAKASAKA, Takuya YOSHIKAWA, Sadahiro KATO, Masayuki FUKUSHIMA, Kojiro INAMORI, Hiroko TAKAHASHI, Yuichiro BANBA, Kaori SEKINE
  • Publication number: 20200108374
    Abstract: A functional structural body includes a skeletal body of a porous structure composed of a zeolite-type compound, and at least one type of metallic nanoparticles present in the skeletal body, the skeletal body having channels connecting with each other, the metallic nanoparticles being present at least in the channels of the skeletal body.
    Type: Application
    Filed: November 27, 2019
    Publication date: April 9, 2020
    Inventors: Takao MASUDA, Yuta NAKASAKA, Takuya YOSHIKAWA, Sadahiro KATO, Masayuki FUKUSHIMA, Kojiro INAMORI, Hiroko TAKAHASHI, Yuichiro BANBA, Kaori SEKINE
  • Publication number: 20200094232
    Abstract: A structured catalyst for steam reforming of the present disclosure is used for producing reformed gas containing hydrogen from a reforming raw material containing hydrocarbon, and includes a support having a porous structure constituted of a zeolite-type compound, and at least one catalytic substance present inside the support. The support includes channels connecting with each other, and the catalytic substance is metal nanoparticles and present at least in the channels of the support.
    Type: Application
    Filed: November 27, 2019
    Publication date: March 26, 2020
    Inventors: Takao MASUDA, Yuta NAKASAKA, Takuya YOSHIKAWA, Sadahiro KATO, Masayuki FUKUSHIMA, Hiroko TAKAHASHI, Yuichiro BANBA, Kaori SEKINE