Patents by Inventor Yuki TSUKAGOSHI

Yuki TSUKAGOSHI 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: 11939896
    Abstract: A blowby gas return apparatus is provided that achieves inhibition of condensation of water vapor in blowby gas in branched return passages. A blowby gas return apparatus that returns blowby gas generated in an engine having a plurality of cylinders to an intake system of the engine includes a distribution portion inside a head cover of the engine, and distributes the blowby gas to intake paths of the cylinders. The distribution portion includes an introduction portion through which the blowby gas is introduced and a plurality of branch passages communicating with the introduction portion, plurality of branch passages branching from the introduction portion to communicate with the intake paths.
    Type: Grant
    Filed: March 21, 2023
    Date of Patent: March 26, 2024
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Takashi Kashiwabara, Yuki Tsukagoshi
  • Publication number: 20240039361
    Abstract: A rotating electrical machine includes a cylindrical housing having a flow path configured to allow a refrigerant to flow therethrough, an inlet configured to allow the refrigerant to flow into the flow path, and an outlet configured to allow the refrigerant to flow out of the flow path. The flow path being formed so as to spirally surround a circumferential surface of the housing. The flow path includes: a first flow path that is formed along one end surface of the housing and formed such that a width along the circumferential surface increases along a flow direction of the refrigerant from the inlet; and a second flow path that is formed along the other end surface of the housing and formed such that a width along the circumferential surface decreases toward the outlet along the flow direction of the refrigerant.
    Type: Application
    Filed: March 8, 2021
    Publication date: February 1, 2024
    Inventors: Yuki TSUKAGOSHI, Yasuyuki KUBOTA
  • Patent number: 11821016
    Abstract: An objective of the present invention is to provide a culturing method, by which Bacillus bacterial spores can be efficiently produced. The present invention provides a method for producing Bacillus bacterial spores, comprising culturing Bacillus bacteria in a liquid medium containing a sugar or a sugar-source raw material at a concentration between 50.1 g/L and 100 g/L at the start of culture, and then in the course of the culture, feeding a fed-batch medium containing a sugar or a sugar-source raw material and a nitrogen-containing compound, and having the weight ratio (C/N ratio) of carbon atoms to nitrogen atoms ranging from 5.5 to 13.5 to the liquid medium.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: November 21, 2023
    Assignee: SDS BIOTECH K.K.
    Inventor: Yuki Tsukagoshi
  • Publication number: 20230349307
    Abstract: A blowby gas return apparatus is provided that achieves inhibition of condensation of water vapor in blowby gas in branched return passages. A blowby gas return apparatus that returns blowby gas generated in an engine having a plurality of cylinders to an intake system of the engine includes a distribution portion inside a head cover of the engine, and distributes the blowby gas to intake paths of the cylinders. The distribution portion includes an introduction portion through which the blowby gas is introduced and a plurality of branch passages communicating with the introduction portion, plurality of branch passages branching from the introduction portion to communicate with the intake paths.
    Type: Application
    Filed: March 21, 2023
    Publication date: November 2, 2023
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Takashi KASHIWABARA, Yuki TSUKAGOSHI
  • Publication number: 20230155445
    Abstract: A drive unit includes an electric drive motor for driving and an electric generator motor in a series hybrid vehicle. Each of the motors includes a helical cooling passage helically surrounding an outer periphery of its stator. The first and second electric motors are housed in an outer housing such that the rotor axes are parallel. The helical cooling passages of the motors are connected in series via a connecting passage. The coolant outlet of the upstream helical cooling passage is connected to the connecting passage. The coolant inlet of the downstream helical cooling passage is connected to the connecting passage. The coolant outlet of the upstream helical cooling passage and the coolant inlet of the downstream helical cooling passage are arranged at end portions on the same side in a direction of the rotor axes.
    Type: Application
    Filed: May 22, 2020
    Publication date: May 18, 2023
    Inventor: Yuki TSUKAGOSHI
  • Publication number: 20220354124
    Abstract: The present invention aims to provide a disease control agent for a plant selected from the group consisting of Brassicaceae plant; beans; maize; wheat variety; tubers and roots; and sugar beet; the disease being a disease caused by a fungus selected from the group consisting of fungi belonging to the genus Rhizoctonia, fungi belonging to the genus Fusarium, fungi belonging to the genus Pythium, fungi belonging to the genus Microdochium, fungi belonging to the genus Tilletia, fungi belonging to the genus Ustilago, fungi belonging to the genus Streptomyces, fungi belonging to the genus Erwinia, and fungi belonging to the genus Aphanomyces. The disease is controlled by treating seeds, seedlings, or soil of the plant using a filamentous fungus belonging to the genus Talaromyces.
    Type: Application
    Filed: June 26, 2020
    Publication date: November 10, 2022
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventor: Yuki TSUKAGOSHI
  • Patent number: 11008545
    Abstract: A method of producing Bacillus spores comprising a step of culturing the Bacillus bacterium using a liquid medium having a C/N ratio (weight ratio of carbon content to nitrogen content) of greater than 4 and less than 9.5.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: May 18, 2021
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Takanori Eguchi, Yasuyuki Morishita, Yuki Tsukagoshi
  • Publication number: 20190241924
    Abstract: An objective of the present invention is to provide a culturing method, by which Bacillus bacterial spores can be efficiently produced. The present invention provides a method for producing Bacillus bacterial spores, comprising culturing Bacillus bacteria in a liquid medium containing a sugar or a sugar-source raw material at a concentration between 50.1 g/L and 100 g/L at the start of culture, and then in the course of the culture, feeding a fed-batch medium containing a sugar or a sugar-source raw material and a nitrogen-containing compound, and having the weight ratio (C/N ratio) of carbon atoms to nitrogen atoms ranging from 5.5 to 13.5 to the liquid medium.
    Type: Application
    Filed: October 6, 2017
    Publication date: August 8, 2019
    Applicant: IDEMITSU KOSAN CO., LTD
    Inventor: Yuki TSUKAGOSHI
  • Publication number: 20190048311
    Abstract: A method of producing Bacillus spores comprising a step of culturing the Bacillus bacterium using a liquid medium having a C/N ratio (weight ratio of carbon content to nitrogen content) of greater than 4 and less than 9.5.
    Type: Application
    Filed: April 8, 2016
    Publication date: February 14, 2019
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Takanori EGUCHI, Yasuyuki MORISHITA, Yuki TSUKAGOSHI