Patents by Inventor Akihisa Oota

Akihisa Oota 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: 12145116
    Abstract: A production apparatus for a liquid containing gas bubbles includes a casing, a pump unit, and a gas bubble-mixing unit. The casing is provided with a main flow channel for a liquid, the main flow channel having a liquid inflow port and a liquid outflow port. The pump unit is disposed in the main flow channel and pumps the liquid to the liquid outflow port from the liquid inflow port. The gas bubble-mixing unit includes a first choke portion that is disposed in the main flow channel and has an inner diameter decreased and a gas supply channel that supplies the first choke portion with a gas.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: November 19, 2024
    Assignee: KYB Corporation
    Inventors: Akihisa Oota, Eishin Noguchi, Terumi Mori
  • Publication number: 20220203312
    Abstract: A production apparatus for a liquid containing gas bubbles includes a casing, a pump unit, and a gas bubble-mixing unit. The casing is provided with a main flow channel for a liquid, the main flow channel having a liquid inflow port and a liquid outflow port. The pump unit is disposed in the main flow channel and pumps the liquid to the liquid outflow port from the liquid inflow port. The gas bubble-mixing unit includes a first choke portion that is disposed in the main flow channel and has an inner diameter decreased and a gas supply channel that supplies the first choke portion with a gas.
    Type: Application
    Filed: March 23, 2020
    Publication date: June 30, 2022
    Inventors: Akihisa OOTA, Eishin NOGUCHI, Terumi MORI
  • Publication number: 20220184566
    Abstract: [Abstract] A production apparatus for a liquid containing gas bubbles according to an embodiment of the present invention includes a casing and a shearing mechanism unit. The casing includes an inlet, into which a liquid with a gas injected therein flows, and an outlet. The shearing mechanism unit is provided between the inlet and the outlet and applies shearing force to a liquid flowing to the outlet from the inlet. The shearing mechanism unit includes a rotor, a rotation applying unit, and a facing member. The rotor includes a rotary shaft and a tube portion having an outer peripheral portion including a first structure surface in which a plurality of recess portions is formed, and is rotatably disposed inside the casing. The rotation applying unit is provided in the rotary shaft and applies rotating force around the rotary shaft to the rotor.
    Type: Application
    Filed: March 23, 2020
    Publication date: June 16, 2022
    Inventors: Akihisa OOTA, Terumi MORI, Futoshi YOSHIDA, Ryunosuke ISHIKAWA
  • Publication number: 20190145482
    Abstract: A damper of the present invention includes: a damping portion that exerts a damping force by using a granular material at a time of extension and contraction; and an elastic portion that exerts an elastic force at the time of extension and contraction, wherein the damping portion is coupled to the elastic portion such that the damping force and the elastic force are exerted in parallel.
    Type: Application
    Filed: March 21, 2017
    Publication date: May 16, 2019
    Applicants: KYB CORPORATION, NAGOYA INSTITUTE OF TECHNOLOGY
    Inventors: Masakazu NAKAZATO, Akihisa OOTA, Shinichi SEKINE, Atsushi TOYOUCHI, Yuuji FUKUZAWA, Yasushi IDO
  • Publication number: 20190075926
    Abstract: Providing an overturn preventing device which can be easily mounted between a top surface of a piece of furniture and a ceiling and a method of mounting the overturn preventing device. The overturn preventing device includes a damper and a pair of bases. The damper has a cylinder and a piston slidably housed in the cylinder. The damper is mounted between a top surface of a piece of furniture (article) installed on an installation surface and a ceiling. The paired bases are respectively coupled to two ends of the damper. One of the bases abuts against the top surface of the furniture and the other base abuts against the ceiling. The cylinder has an inlet through which a hydraulic fluid (operating liquid) is poured into the cylinder.
    Type: Application
    Filed: February 20, 2017
    Publication date: March 14, 2019
    Applicant: KYB CORPORATION
    Inventors: Shinichi SEKINE, Akihisa OOTA, Masaya UNE, Atsushi TOYOUCHI, Yukiko ISHIHARA, Chika IIDA
  • Publication number: 20190069678
    Abstract: Providing an overturn preventing device which can inform in a case where a load applied to a base has changed. The overturn preventing device includes a damper to be mounted between a top surface of an article installed on an installation surface and a ceiling, and a pair of bases respectively coupled to both ends of the damper. One of the bases abuts against the top surface of the article and the other base abutting against the ceiling. The device further includes a shape-changeable part (an informing part) which informs in a case where the base has been subjected to a predetermined load.
    Type: Application
    Filed: February 28, 2017
    Publication date: March 7, 2019
    Applicant: KYB CORPORATION
    Inventors: Shinichi SEKINE, Akihisa OOTA
  • Publication number: 20190017564
    Abstract: Providing an overturn preventing device which can easily be mounted between a top surface of an article and a ceiling and a method of mounting the overturn preventing device. The overturn preventing device includes a damper. The damper is mounted between a top surface of a piece of furniture (an article) and a ceiling. The damper includes a cylinder and a piston. A hydraulic fluid (operating liquid) and a compressed gas are enclosed in the cylinder. The piston is slidably housed in the cylinder. When the damper is to be mounted between the top surface of the furniture and the ceiling, the piston is housed in the compressed gas enclosed above the hydraulic fluid. The piston can be moved into the hydraulic fluid when the furniture is tilted and the damper is contracted by a predetermined length.
    Type: Application
    Filed: February 20, 2017
    Publication date: January 17, 2019
    Applicant: KYB CORPORATION
    Inventors: Shinichi SEKINE, Akihisa OOTA, Masaya UNE, Atsushi TOYOUCHI, Yukiko ISHIHARA, Chika IIDA
  • Publication number: 20050263362
    Abstract: A piston rod insert axis portion 3 is provided in a top end of a piston rod 2 entering into and going out from a cylinder 1, a piston 4 is inserted into the piston rod insert axis portion 3, and the piston 4, as well as damping valves 6 and 7 similarly inserted into the piston rod insert axis portion 3 are clamped and fixed by a nut 8. The piston rod insert axis portion 3 is formed separately from the piston rod 2, as well as the piston rod insert axis portion 3 and the a base end of the piston rod 2 are connected by a screw bore 11 and a screw shaft 12 as fixation members.
    Type: Application
    Filed: May 20, 2005
    Publication date: December 1, 2005
    Inventors: Akihisa Oota, Atsushi Noritake
  • Publication number: 20050247531
    Abstract: A bump cushion (18) is inserted and fixed in an outer periphery of an upper portion of a piston rod (17) connected to a vehicle body mount (5), and the bumping of the upper portion of a cylinder (8) on the bump cushion (18) at the time of the compression operation absorbs the jolts. A circular clearance (25) is all the time formed between an inner periphery of the bump cushion (18) and an outer periphery of the piston rod (17) and the clearance (25) is communicated with an outside.
    Type: Application
    Filed: March 1, 2005
    Publication date: November 10, 2005
    Inventor: Akihisa Oota