Patents by Inventor Yohei Shono

Yohei Shono 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).

  • Refrigerator oil, and working fluid composition for refrigerator
    Patent number: 12270007
    Abstract: A refrigerating machine oil having a flash point of 130° C. or lower and a carbon residue of 10% residual oil of 0.02% by mass or more.
    Type: Grant
    Filed: December 20, 2021
    Date of Patent: April 8, 2025
    Assignee: ENEOS CORPORATION
    Inventors: Fumiyuki Nara, Yohei Shono, Hidetoshi Ogata
  • Refrigerator oil, and working fluid composition for refrigerator
    Patent number: 12258532
    Abstract: An aspect of the present invention provides a refrigerating machine oil containing: a lubricating base oil; and a polymer containing an unsaturated carboxylic acid ester as a monomer unit, wherein the unsaturated carboxylic acid ester contains an ester of an unsaturated carboxylic acid and an alcohol having a hydrocarbon group represented by the following formula (1): wherein x represents an integer of 5 to 18, and y represents an integer of 3 to 18.
    Type: Grant
    Filed: April 27, 2021
    Date of Patent: March 25, 2025
    Assignee: ENEOS CORPORATION
    Inventors: Hidetoshi Ogata, Fumiyuki Nara, Yohei Shono
  • Refrigerator oil and refrigerator working fluid composition
    Patent number: 12252662
    Abstract: One aspect of the present invention is a refrigerating machine oil comprising a base oil, a dithiophosphoric acid ester, and a phosphonate ester.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: March 18, 2025
    Assignee: ENEOS CORPORATION
    Inventors: Yohei Shono, Tatsuki Nakajima, Shogo Hashimoto, Yuya Mizutani, Hidetoshi Ogata
  • Refrigerator oil and refrigerator working fluid composition
    Patent number: 12247177
    Abstract: One aspect of the present invention is a refrigerating machine oil comprising a base oil, a dithiophosphoric acid ester, and an amine salt of an acidic phosphoric acid ester.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: March 11, 2025
    Assignee: ENEOS CORPORATION
    Inventors: Yohei Shono, Tatsuki Nakajima, Shogo Hashimoto, Yuya Mizutani, Hidetoshi Ogata
  • Refrigerating machine oil, working fluid composition for refrigerating machine, lubricating method, and method for producing refrigerating machine oil
    Patent number: 12227712
    Abstract: A refrigerating machine oil containing: a lubricating base oil; and a polymer additive, wherein a carbon residue of 10% residual oil is 0.05% by mass or more.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: February 18, 2025
    Assignee: ENEOS CORPORATION
    Inventors: Yohei Shono, Fumiyuki Nara
  • Refrigerating machine oil
    Patent number: 12122976
    Abstract: An aspect of the present invention provides a refrigerating machine oil containing: a lubricating base oil; a phosphorus-containing additive; and a polymer comprising an unsaturated carboxylic acid ester as a monomer unit.
    Type: Grant
    Filed: April 27, 2021
    Date of Patent: October 22, 2024
    Assignee: ENEOS CORPORATION
    Inventors: Fumiyuki Nara, Yohei Shono, Hidetoshi Ogata
  • Refrigerating machine oil, working fluid composition for refrigerating machine, and method for producing refrigerating machine oil
    Patent number: 12098346
    Abstract: An aspect of the present invention provides a refrigerating machine oil containing a mixed base oil of a first hydrocarbon base oil having a kinematic viscosity at 40° C. of less than 6 mm2/s and a second hydrocarbon base oil having a kinematic viscosity at 40° C. of 6 mm2/s or more, wherein a (A)/(B) ratio is more than 1 and 1.5 or less, wherein (A) is a kinematic viscosity at 40° C. of the mixed base oil, and (B) is the kinematic viscosity at 40° C. of the first hydrocarbon base oil.
    Type: Grant
    Filed: April 27, 2021
    Date of Patent: September 24, 2024
    Assignee: ENEOS CORPORATION
    Inventors: Fumiyuki Nara, Yohei Shono, Hidetoshi Ogata
  • REFRIGERATOR OIL AND WORKING FLUID COMPOSITION FOR REFRIGERATOR
    Publication number: 20230365886
    Abstract: A refrigerating machine oil containing a hydrocarbon base oil having a 90% distillation temperature of 270° C. or lower.
    Type: Application
    Filed: December 20, 2021
    Publication date: November 16, 2023
    Applicant: ENEOS Corporation
    Inventors: Fumiyuki NARA, Yohei SHONO, Hidetoshi OGATA
  • REFRIGERATOR OIL, AND WORKING FLUID COMPOSITION FOR REFRIGERATOR
    Publication number: 20230365887
    Abstract: A refrigerating machine oil having a flash point of 130° C. or lower and a carbon residue of 10% residual oil of 0.02% by mass or more.
    Type: Application
    Filed: December 20, 2021
    Publication date: November 16, 2023
    Applicant: ENEOS Corporation
    Inventors: Fumiyuki NARA, Yohei SHONO, Hidetoshi OGATA
  • Lubrication method
    Patent number: 11702608
    Abstract: A lubrication method including lubricating a sliding member which contains at least one selected from the group consisting of a liquid crystal polymer and polyetheretherketone by using a lubricating oil composition which contains an ester as a lubricating base oil.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: July 18, 2023
    Assignee: ENEOS CORPORATION
    Inventors: Yuji Shitara, Yohei Shono, Hidetoshi Ogata, Kazushi Kodama, Hiroshi Matsuura, Satoshi Masuyama
  • Refrigeration machine oil and refrigeration machine oil production method
    Patent number: 11680220
    Abstract: The present invention provides a method for producing a refrigerating machine oil, comprising blending a hydrocarbyl hydrogen phosphite having an acid value of 100 mgKOH/g or less with a lubricating base oil or an oil composition containing a lubricating base oil, and a refrigerating machine oil obtained by the method.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: June 20, 2023
    Assignee: ENEOS CORPORATION
    Inventors: Yohei Shono, Tatsuki Nakajima, Shogo Hashimoto, Hidetoshi Ogata
  • REFRIGERATOR OIL, AND WORKING FLUID COMPOSITION FOR REFRIGERATOR
    Publication number: 20230167377
    Abstract: An aspect of the present invention provides a refrigerating machine oil containing: a lubricating base oil; and a polymer containing an unsaturated carboxylic acid ester as a monomer unit, wherein the unsaturated carboxylic acid ester contains an ester of an unsaturated carboxylic acid and an alcohol having a hydrocarbon group represented by the following formula (1): wherein x represents an integer of 5 to 18, and y represents an integer of 3 to 18.
    Type: Application
    Filed: April 27, 2021
    Publication date: June 1, 2023
    Applicant: ENEOS CORPORATION
    Inventors: Hidetoshi OGATA, Fumiyuki NARA, Yohei SHONO
  • REFRIGERATING MACHINE OIL
    Publication number: 20230159851
    Abstract: An aspect of the present invention provides a refrigerating machine oil containing: a lubricating base oil; a phosphorus-containing additive; and a polymer comprising an unsaturated carboxylic acid ester as a monomer unit.
    Type: Application
    Filed: April 27, 2021
    Publication date: May 25, 2023
    Applicant: ENEOS CORPORATION
    Inventors: Fumiyuki NARA, Yohei SHONO, Hidetoshi OGATA
  • REFRIGERATING MACHINE OIL, WORKING FLUID COMPOSITION FOR REFRIGERATING MACHINE, AND METHOD FOR PRODUCING REFRIGERATING MACHINE OIL
    Publication number: 20230134730
    Abstract: An aspect of the present invention provides a refrigerating machine oil containing a mixed base oil of a first hydrocarbon base oil having a kinematic viscosity at 40° C. of less than 6 mm2/s and a second hydrocarbon base oil having a kinematic viscosity at 40° C. of 6 mm2/s or more, wherein a (A)/(B) ratio is more than 1 and 1.5 or less, wherein (A) is a kinematic viscosity at 40° C. of the mixed base oil, and (B) is the kinematic viscosity at 40° C. of the first hydrocarbon base oil.
    Type: Application
    Filed: April 27, 2021
    Publication date: May 4, 2023
    Applicant: ENEOS CORPORATION
    Inventors: Fumiyuki NARA, Yohei SHONO, Hidetoshi OGATA
  • Refrigerator oil and hydraulic fluid composition for refrigerators
    Patent number: 11549077
    Abstract: A refrigerating machine oil containing: a lubricating base oil; and a compound represented by the following formula (1): wherein R1 and R2 each independently represent a monovalent hydrocarbon group, R3 represents a divalent hydrocarbon group, and R4 represents hydrogen atom or a monovalent hydrocarbon group, and the refrigerating machine oil having a kinematic viscosity at 100° C. of 0.5 mm2/s or more and 2.5 mm2/s or less.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: January 10, 2023
    Assignee: ENEOS CORPORATION
    Inventors: Yohei Shono, Fumiyuki Nara, Takeshi Okido, Hidetoshi Ogata
  • REFRIGERATING MACHINE OIL, WORKING FLUID COMPOSITION FOR REFRIGERATING MACHINE, LUBRICATING METHOD, AND METHOD FOR PRODUCING REFRIGERATING MACHINE OIL
    Publication number: 20220411710
    Abstract: A refrigerating machine oil containing: a lubricating base oil; and a polymer additive, wherein a carbon residue of 10% residual oil is 0.05% by mass or more.
    Type: Application
    Filed: November 13, 2020
    Publication date: December 29, 2022
    Applicant: ENEOS CORPORATION
    Inventors: Yohei SHONO, Fumiyuki NARA
  • Refrigerator oil
    Patent number: 11505760
    Abstract: The present invention provides a refrigerating machine oil comprising a hydrocarbon-based base oil having a viscosity index of 120 or less, and the refrigerating machine oil being used with a 1-chloro-2,3,3,3-tetrafluoropropene refrigerant.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: November 22, 2022
    Assignee: ENEOS CORPORATION
    Inventors: Yohei Shono, Akira Tada, Yuya Mizutani, Takeshi Okido, Hidetoshi Ogata, Tatsuki Nakajima
  • Refrigerator oil and hydraulic fluid composition for refrigerators
    Patent number: 11499114
    Abstract: A refrigerating oil comprising a lubricating base oil, a first extreme pressure agent containing sulfur and phosphorus as constituent elements and a second extreme pressure agent containing phosphorus but not containing sulfur as constituent elements, and having a kinematic viscosity at 100° C. of 0.5 mm2/s or more and 2.5 mm2/s or less.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: November 15, 2022
    Assignee: ENEOS CORPORATION
    Inventors: Fumiyuki Nara, Yohei Shono, Takeshi Okido, Hidetoshi Ogata
  • Refrigerant oil and method for producing refrigerant oil
    Patent number: 11485926
    Abstract: The present invention provides a refrigerating machine oil comprising a lubricating base oil and at least one selected from the group consisting of an amine salt of phosphonic acid and an amine salt of phosphonic acid monoester, and a method for producing the same.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: November 1, 2022
    Assignee: ENEOS CORPORATION
    Inventors: Yohei Shono, Tatsuki Nakajima, Shogo Hashimoto, Yuya Mizutani, Hidetoshi Ogata
  • Refrigerator oil
    Patent number: 11453839
    Abstract: The present invention provides a refrigerating machine oil containing a lubricating base oil, a dialkyl hydrogen phosphite having two alkyl groups having 1 to 12 carbon atoms in the molecule, and an epoxy compound.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: September 27, 2022
    Assignee: ENEOS CORPORATION
    Inventors: Yohei Shono, Tatsuki Nakajima, Shogo Hashimoto, Hidetoshi Ogata