Patents by Inventor Keisuke Araki

Keisuke Araki 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: 12145587
    Abstract: A leaning vehicle including a vehicle body, a steerable front wheel set swivelable around an axis extending in an up-down direction, a rear wheel set, a turn operation input device that receives a turn operation and transmits the turn operation non-mechanically, a leaning device including a lean actuator that leans the vehicle body, the steerable front wheel set and the rear wheel set to a leftward or rightward direction, and a centripetal force generator including a centripetal force generation actuator, which outputs a controllable torque to thereby generate an additional centripetal force that acts on the steerable front wheel set and the rear wheel set during a turn of the leaning vehicle. The controller controls the torque while controlling the lean actuator in accordance with the received turn operation, to thereby control a leaning condition of the vehicle body during the turn and to control generation of the additional centripetal force.
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: November 19, 2024
    Assignees: YAMAHA HATSUDOKI KABUSHIKI KAISHA, AISIN CORPORATION
    Inventors: Keisuke Terada, Toshifumi Uchiyama, Keizo Araki, Shota Kubo
  • Publication number: 20240318930
    Abstract: Provided are a copper-containing refrigerant pipe whose corrosion can be suppressed, a heat exchanger, and a method for producing a refrigerant pipe. A refrigerant pipe includes a pipe body including copper or copper alloy and an anticorrosive film formed on the outer surface of the pipe body. The anticorrosive film is obtained by applying a coating agent to the outer surface of the pipe body. The coating agent contains one or more anticorrosive agents selected from (A) an organic sulfonate compound, (B) a polyhydric alcohol-organic acid ester compound, and (C) an aliphatic amine compound having 8 to 24 carbon atoms. When the coating agent includes an anticorrosive agent of (C) the aliphatic amine compound having 8 to 24 carbon atoms, (C) the aliphatic amine compound having 8 to 24 carbon atoms is included in an amount of 2.0 wt % or more and 10.0 wt % or less in the coating agent.
    Type: Application
    Filed: June 5, 2024
    Publication date: September 26, 2024
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Mirei KANETAKE, Yuuji TANAKA, Kunihiro OKADA, Hideo OHYA, Hideo KATAYAMA, Keisuke IMAZU, Shouhei ARAKI
  • Publication number: 20240312446
    Abstract: There is provided an acoustic signal enhancement device that receives, as an input, a recording sound obtained by frequency division and updates parameters, the device including: assuming that a switch weight is a weight indicating a ratio of a classification to which a recording sound at each timing belongs in classifications of spatial states where a recording sound temporally changes, a beamformer unit that performs beamformer processing based on a weighted spatial covariance matrix which is updated and updates an auxiliary estimation value of a target sound; a switch unit that updates the switch weight and power of a target sound based on the updated auxiliary estimation value and outputs an estimation value of the target sound; and a weighted spatial covariance estimation unit that updates the weighted spatial covariance matrix based on the updated switch weight and the power.
    Type: Application
    Filed: September 30, 2021
    Publication date: September 19, 2024
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Tomohiro NAKATANI, Rintaro IKESHITA, Keisuke KINOSHITA, Hiroshi SAWADA, Naoyuki KAMO, Shoko ARAKI
  • Patent number: 12038240
    Abstract: A copper-containing refrigerant pipe having an anticorrosive film, a heat exchanger, and a method for producing the refrigerant pipe are disclosed. The refrigerant pipe includes a pipe body including copper or a copper alloy and an anticorrosive film formed on the outer surface of the pipe body. The anticorrosive film is obtained by applying a coating agent to the outer surface of the pipe body. The coating agent contains one or more anticorrosive agents selected from the group consisting of (A) an organic sulfonate compound, (B) a polyhydric alcohol-organic acid ester compound, and (C) an aliphatic amine compound having 8 to 24 carbon atoms. When the coating agent includes an anticorrosive agent of (C) the aliphatic amine compound having 8 to 24 carbon atoms, (C) the aliphatic amine compound having 8 to 24 carbon atoms is included in an amount of 2.0 wt % or more and 10.0 wt % or less in the coating agent.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: July 16, 2024
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Mirei Kanetake, Yuuji Tanaka, Kunihiro Okada, Hideo Ohya, Hideo Katayama, Keisuke Imazu, Shouhei Araki
  • Publication number: 20240145170
    Abstract: A multilayer ceramic capacitor includes a base body including dielectric ceramic layers and internal electrode layers stacked in a thickness direction, and a pair of external electrodes on first and second end surfaces and electrically connected to the internal electrode layers. The dielectric ceramic layers include, as a main component, crystal grains including a perovskite complex oxide including barium and titanium, and a rare earth element, and include, in a cross section including the thickness direction, a rare earth element high-concentration region in an area proportion of about 50% or more, the rare earth element high-concentration region including the rare earth element in a molar ratio of the rare earth element to titanium of about 0.04 or more and about 0.30 or less.
    Type: Application
    Filed: December 22, 2023
    Publication date: May 2, 2024
    Inventors: Hiroyuki WADA, Taku MIZUNO, Keisuke ARAKI
  • Publication number: 20230299452
    Abstract: In a transmission line, a multilayer body includes a hollow portion above a signal conductor layer and below a ground conductor layer and overlapping the ground conductor layer when viewed in an up-down direction, and a spacer facing the hollow portion. In a cross section orthogonal to a front-back direction, an overlapping region is a region in the hollow portion in which the hollow portion overlaps the spacer in the up-down direction. In a cross section orthogonal to the front-back direction, a non-overlapping region is a region in the hollow portion in which the hollow portion does not overlap the spacer in the up-down direction. A length of the hollow portion in the up-down direction in the overlapping region is shorter than a length of the hollow portion in the up-down direction in the non-overlapping region.
    Type: Application
    Filed: May 22, 2023
    Publication date: September 21, 2023
    Inventors: Nobuo IKEMOTO, Noriaki OKUDA, Kosuke NISHIO, Keisuke ARAKI
  • Publication number: 20220130593
    Abstract: A multilayer resin substrate includes a stacked body, and a coil including a first coil conductor pattern and a second coil conductor pattern. The second coil conductor pattern includes a wide portion with a line width larger than a line width of the first coil conductor pattern. The wide portion includes overlapping portions that overlap with the first coil conductor pattern, and non-overlapping portions that do not overlap with the first coil conductor pattern, when viewed in a Z-axis direction. Adjacent non-overlapping portions in the Z-axis direction, when viewed in the Z-axis direction, protrude in opposite directions to each other in a radial direction, with respect to the first coil conductor pattern.
    Type: Application
    Filed: January 6, 2022
    Publication date: April 28, 2022
    Inventors: Rintaro SUGI, Keisuke ARAKI
  • Publication number: 20220130608
    Abstract: A dielectric ceramic that includes multiple crystal grains, each of the multiple crystal grains having an interface, a barium titanate (BaTiO3)-based compound as a main component thereof, and a rare earth element. The dielectric ceramic has a cross-section in which the multiple crystal grains has a concentration varying region, a high concentration region, and a low concentration region. The concentration varying region has an RE/Ti ratio differing by 3% or more. The high concentration region has an RE/Ti ratio of 5% to 20%. The low concentration region has an RE/Ti ratio of 0% to 2%.
    Type: Application
    Filed: October 7, 2021
    Publication date: April 28, 2022
    Inventors: Taku Mizuno, Keisuke Araki, Hiroyuki Wada
  • Publication number: 20220130592
    Abstract: A multilayer resin substrate includes a stacked body and a coil including coil conductor patterns. A first coil conductor pattern includes a first non-overlapping portion not overlapping with a second coil conductor pattern, when viewed in a Z-axis direction. A second coil conductor pattern includes a second non-overlapping portion not overlapping with the first coil conductor pattern, when viewed in the Z-axis direction. The first non-overlapping portion protrudes more to an outer peripheral side in a radial direction than the second coil conductor pattern, and the second non-overlapping portion protrudes to an inner peripheral side in the radial direction.
    Type: Application
    Filed: January 6, 2022
    Publication date: April 28, 2022
    Inventors: Rintaro SUGI, Keisuke ARAKI
  • Patent number: 11276527
    Abstract: A multilayer ceramic capacitor that includes a laminate having a plurality of dielectric layers and a plurality of internal electrodes that are alternately stacked, and external electrodes. Each of the dielectric layers contains first crystal grains and second crystal grains that each contain Ba, Ti, and a rare-earth element. A first mole ratio M1 of the rare-earth element to the Ti in a range from an interface to 50 nm inclusive of the first crystal grains and a second mole ratio M2 of the rare-earth element to the Ti in a range of 50 nm to 100 nm inclusive from the interface satisfy 0.95?M1/M2?1.05. A third mole ratio M3 of the rare-earth element to the Ti in the second crystal grains is half or less of a fourth mole ratio M4 of the rare-earth element to the Ti in the first crystal grains.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: March 15, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Keisuke Araki
  • Patent number: 10988494
    Abstract: To provide europium complexes having high photostability.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: April 27, 2021
    Assignees: TOSOH CORPORATION, SAGAMI CHEMICAL RESEARCH INSTITUTE
    Inventors: Keisuke Araki, Hiroya Honda, Naoyuki Koiso, Ryo Nakagame, Fumiaki Yoshitomi, Kohei Iwanaga, Taishi Furukawa
  • Publication number: 20200354389
    Abstract: To provide europium complexes having high photostability.
    Type: Application
    Filed: November 27, 2018
    Publication date: November 12, 2020
    Inventors: Keisuke ARAKI, Hiroya HONDA, Naoyuki KOISO, Ryo NAKAGAME, Fumiaki YOSHITOMI, Kohei IWANAGA, Taishi FURUKAWA
  • Publication number: 20200105470
    Abstract: A multilayer ceramic capacitor that includes a laminate having a plurality of dielectric layers and a plurality of internal electrodes that are alternately stacked, and external electrodes. Each of the dielectric layers contains first crystal grains and second crystal grains that each contain Ba, Ti, and a rare-earth element. A first mole ratio M1 of the rare-earth element to the Ti in a range from an interface to 50 nm inclusive of the first crystal grains and a second mole ratio M2 of the rare-earth element to the Ti in a range of 50 nm to 100 nm inclusive from the interface satisfy 0.95?M1/M2?1.05. A third mole ratio M3 of the rare-earth element to the Ti in the second crystal grains is half or less of a fourth mole ratio M4 of the rare-earth element to the Ti in the first crystal grains.
    Type: Application
    Filed: September 18, 2019
    Publication date: April 2, 2020
    Inventor: Keisuke Araki
  • Patent number: 10476133
    Abstract: An electrical element includes a flexible antenna and a rigid member higher in rigidity than the flexible antenna. At least one of the flexible antenna and the rigid member is made of thermoplastic resin. A conductor pattern defining at least a portion of a section that performs the main function of the electrical element is provided at the flexible antenna. No conductor pattern that performs the main function of the electrical element is provided at the rigid member. Opposing surfaces of the flexible antenna and the rigid member are directly joined to each other.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: November 12, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Bunta Okamoto, Isamu Morita, Satoshi Ishino, Jun Sasaki, Yoshihito Otsubo, Keisuke Araki, Norio Sakai
  • Patent number: 10175126
    Abstract: A pressing force sensor that includes a sensor element configured with a piezoelectric film, a lead terminal for connection to an external circuit, a wiring conductor which connects pressing force detection electrodes and the lead terminal, and a flexible printed circuit board which withstands solder reflow temperatures. The flexible printed circuit board has the pressing force detection electrodes formed on a first principal surface thereof, and is folded via a folding line while the first principal surface faces inward. The sensor element is deflected by a pressing force applied to a second principal surface which faces outward and is in a first area of the flexible printed circuit board which is on one side with respect to the folding line, and a signal corresponding to the pressing force is thus taken out from the pressing force detection electrodes.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: January 8, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Keisuke Araki, Hideki Kawamura, Jun Endo
  • Patent number: 10124440
    Abstract: A laser processing device forms a modified region in an object to be processed by converging ultrashort pulse laser light at the object and comprises a laser light source emitting the laser light, a converging optical system converging the laser light emitted from the laser light source at the object, and an aberration providing part imparting an aberration to the laser light converged at the object by the converging optical system.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: November 13, 2018
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Daisuke Kawaguchi, Makoto Nakano, Ryota Sugio, Tsubasa Hirose, Keisuke Araki
  • Patent number: 10124439
    Abstract: The laser processing device comprises a laser light source emitting a laser light, a converging optical system converging the laser light at an object to be processed, and an aberration providing part for imparting an aberration to the laser light converged at the object by the converging optical system. In an optical axis direction of the laser light, letting a reference aberration range be a range of a converging-induced aberration as an aberration occurring at a position where the laser light is converged as a result of converging the laser light at the object, the aberration providing part imparts a first aberration to the laser light such that the laser light has an elongated range longer than the reference aberration range in the optical axis direction as an aberration range and an intensity distribution in the optical axis direction with a continuous undulation in the elongated range.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: November 13, 2018
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Daisuke Kawaguchi, Makoto Nakano, Ryota Sugio, Tsubasa Hirose, Keisuke Araki
  • Patent number: 10021787
    Abstract: A resin substrate combined structure includes a first resin substrate including a flexible resin defining a main material and includes a first portion, a second resin substrate including a flexible resin defining a main material and includes a second portion spaced from the first portion in a thickness direction, and an insulating member that envelops the first portion and the second portion while retaining a relative positional relationship between the first portion and the second portion. The insulating member includes a material with a higher rigidity than any of the main material of the first resin substrate and that of the second resin substrate.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: July 10, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yoshihito Otsubo, Keisuke Araki, Yuki Ito, Kenji Kubota
  • Patent number: 9914183
    Abstract: A laser processing device converges laser light at an object to be processed so as to form a modified region within the object along a line to cut. The laser processing device comprises a laser light source emitting the laser light, a spatial light modulator modulating the laser light emitted from the laser light source, and a converging optical system converging the laser light modulated by the spatial light modulator at the object. The spatial light modulator displays an axicon lens pattern as a modulation pattern so as to form converging points at a plurality of positions juxtaposed close to each other along a laser light irradiation direction.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: March 13, 2018
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Daisuke Kawaguchi, Makoto Nakano, Ryota Sugio, Tsubasa Hirose, Keisuke Araki
  • Patent number: 9902017
    Abstract: A laser processing device comprises a laser light source emitting the laser light, a spatial light modulator modulating the laser light emitted from the laser light source, and a converging optical system converging the laser light modulated by the spatial light modulator at the object. A plurality of rows of modified regions include at least an entrance-surface-side modified region located on the laser light entrance surface side, an opposite-surface-side modified region located on the opposite surface side of the laser light entrance surface, and a middle modified region located between the entrance-surface-side modified region and opposite-surface-side modified region. When forming the middle modified region, the spatial light modulator displays an axicon lens pattern as a modulation pattern so as to form converging points at a plurality of positions juxtaposed close to each other along a laser light irradiation direction.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: February 27, 2018
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Daisuke Kawaguchi, Tsubasa Hirose, Keisuke Araki