Patents by Inventor Hidetoshi OGATA

Hidetoshi OGATA 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: 20210054301
    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: Application
    Filed: February 15, 2017
    Publication date: February 25, 2021
    Applicants: JXTG NIPPON OIL & ENERGY CORPORATION, JXTG NIPPON OIL & ENERGY CORPORATION
    Inventors: Yohei SHONO, Akira TADA, Yuya MIZUTANI, Takeshi OKIDO, Hidetoshi OGATA, Tatsuki NAKAJIMA
  • Patent number: 10913918
    Abstract: The present invention provides a refrigerating machine oil comprising: a lubricating base oil; and 40 mass % or less of a polymer, based on a total amount of the refrigerating machine oil, the polymer having a structural unit represented by the following formula (I) and a weight average molecular weight of from 500 to 100000. [In formula (I), Ra, Rb and Rc each independently represents a hydrogen atom or a hydrocarbon group, and Rd represents an oxygen-containing organic group or a C1-18 hydrocarbon group.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: February 9, 2021
    Assignee: ENEOS CORPORATION
    Inventors: Hiroko Shimpo, Kentaro Yamaguchi, Hidetoshi Ogata, Takeshi Okido
  • Publication number: 20210032558
    Abstract: One aspect of the present invention is a refrigerating machine oil containing: a base oil containing an ester of an alcohol and a fatty acid; 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 40° C. of 10 mm2/s or less.
    Type: Application
    Filed: February 6, 2019
    Publication date: February 4, 2021
    Applicant: ENEOS Corporation
    Inventors: Yohei SHONO, Fumiyuki NARA, Takeshi OKIDO, Hidetoshi OGATA
  • Publication number: 20210009884
    Abstract: One aspect of the present invention is a refrigerating machine including a refrigerant circulation system including a compressor, a condenser, an expansion mechanism, and an evaporator, and the refrigerant circulation system being filled with a refrigerant and a refrigerating machine oil, wherein the refrigerating machine oil contains: a first base oil having a compatible region with the refrigerant in a range of a temperature of 30° C. or lower and an oil ratio of 1 to 80% by mass; and a second base oil having a kinematic viscosity at 40° C. lower than the first base oil and having a narrower compatible region with the refrigerant than the first base oil.
    Type: Application
    Filed: April 2, 2019
    Publication date: January 14, 2021
    Applicant: ENEOS Corporation
    Inventors: Kentaro YAMAGUCHI, Yuya MIZUTANI, Satoshi NAGAI, Hidetoshi OGATA
  • Publication number: 20200369979
    Abstract: A refrigerating machine oil having a kinematic viscosity at 100° C. of 0.5 mm2/s or more and 2.5 mm2/s or less, a distillation end point in gas chromatography distillation of 380° C. or more and 450° C. or less, and a sulfur content of 0.001 mass % or more and 0.2 mass % or less.
    Type: Application
    Filed: November 19, 2018
    Publication date: November 26, 2020
    Applicant: JXTG Nippon Oil & Energy Corporation
    Inventors: Fumiyuki NARA, Yohei SHONO, Takeshi OKIDO, Hidetoshi OGATA
  • Publication number: 20200354645
    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: Application
    Filed: February 6, 2019
    Publication date: November 12, 2020
    Applicant: ENEOS Corporation
    Inventors: Yohei SHONO, Fumiyuki NARA, Takeshi OKIDO, Hidetoshi OGATA
  • Publication number: 20200308504
    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: Application
    Filed: November 19, 2018
    Publication date: October 1, 2020
    Applicant: JXTG Nippon Oil & Energy Corporation
    Inventors: Fumiyuki NARA, Yohei SHONO, Takeshi OKIDO, Hidetoshi OGATA
  • Patent number: 10759982
    Abstract: The present invention provides a refrigerating machine oil comprising, as a base oil, at least one oxygen-containing oil having a carbon/oxygen molar ratio of 2.5 or more and 7.5 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: September 1, 2020
    Assignee: JXTG NIPPON OIL & ENERGY CORPORATION
    Inventors: Yohei Shono, Akira Tada, Yuya Mizutani, Takeshi Okido, Hidetoshi Ogata
  • Patent number: 10723926
    Abstract: The present invention provides a working fluid composition for a refrigerating machine containing: a refrigerating machine oil containing: a first ester that is a polyol ester of dipentaerythritol and at least one fatty acid selected from fatty acids having 4 to 10 carbon atoms, and has a kinematic viscosity at 100° C. of 7.0 mm2/s or more; and a second ester that is a complex ester of a polyhydric alcohol containing at least one selected from neopentyl glycol, trimethylolpropane and pentaerythritol, a polybasic acid having 6 to 12 carbon atoms, and a monohydric alcohol having 4 to 18 carbon atoms or a fatty acid having 4 to 18 carbon atoms; and a refrigerant containing difluoromethane.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: July 28, 2020
    Assignee: JXTG NIPPON OIL & ENERGY CORPORATION
    Inventors: Takeshi Okido, Hiroko Shimpo, Yuya Mizutani, Hidetoshi Ogata
  • Publication number: 20200199476
    Abstract: In an aspect, the present invention provides a refrigerating machine oil comprising a poly(meth)acrylate as a base oil, wherein the poly(meth)acrylate comprises a hydrogenated poly(meth)acrylate, a content of a unit having a carbon-carbon double bond present at a terminal in the poly(meth)acrylate is 6% by mole or less relative to total units constituting the poly(meth)acrylate, and a kinematic viscosity at 40° C. of the hydrogenated poly(meth)acrylate is 1 to 1000 mm2/s, the refrigerating machine oil being used with a refrigerant comprising a refrigerant selected from difluoromethane, a mixture of difluoromethane and pentafluoroethane, a mixture of difluoromethane, pentafluoroethane, and 1,1,1,2-tetrafluoroethane, a mixture of pentafluoroethane, 1,1,1,2-tetrafluoroethane, and 1,1,1-trifluoroethane, an unsaturated hydrofluorocarbon, a hydrocarbon, and carbon dioxide.
    Type: Application
    Filed: October 20, 2017
    Publication date: June 25, 2020
    Applicant: JXTG NIPPON OIL & ENERGY CORPORATION
    Inventors: Kentaro YAMAGUCHI, Akira TADA, Tatsuki NAKAJIMA, Takeshi OKIDO, Hidetoshi OGATA
  • Patent number: 10670030
    Abstract: A turbo machine of the present disclosure includes a rotation shaft, a first bearing, a casing, an impeller, a first space, a second space, a storage tank, a first outlet passage, a supply passage, a pump, a main passage, and a sub-passage. The second space is in communication with a space formed between a bearing surface of the first bearing and an outer surface of the rotation shaft. The main passage is in communication with the second space and extends in the rotation shaft from an end of the rotation shaft in an axial direction of the rotation shaft. The sub-passage is formed in the rotation shaft and allows communication between the space between the bearing surface of the first bearing and the outer surface of the rotation shaft and the main passage.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: June 2, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Akira Hiwata, Kazuyuki Kouda, Mamoru Nishibu, Tadayoshi Shoyama, Takeshi Ogata, Hidetoshi Taguchi
  • Patent number: 10570775
    Abstract: A turbo machine of the present disclosure includes a cylindrical bearing housing, a rotation shaft, a bearing, a bearing holder, and an end elastic body. The rotation shaft is located in the bearing housing. The bearing rotatably supports the rotation shaft at least in a radial direction of the rotation shaft. The bearing holder faces one end of the bearing and is fixed to the bearing housing. The end elastic body is disposed between the one end of the bearing and the bearing holder in the axial direction of the bearing and is in contact with the bearing and the bearing holder. The end elastic body is formed of a material having a lower modulus of elasticity than a material forming the bearing holder.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: February 25, 2020
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Kazuyuki Kouda, Hidetoshi Taguchi, Akira Hiwata, Takeshi Ogata, Tadayoshi Shoyama, Hiroshi Hasegawa
  • Patent number: 10408232
    Abstract: A turbo machine according to present disclosure includes a rotating shaft, a first impeller, a first fluid bearing, a first holding member, a first lubricating liquid casing, a first supplying passage, and a first squeeze film damper. The first fluid bearing rotatably supports the first taper portion and the first cylindrical portion. The first fluid bearing is attached to the first holding member. The first lubricating liquid casing forms a first storing space. The first supplying passage is a passage through which a lubricating liquid is supplied to the first storing space. The first squeeze film damper is a space located between the first fluid bearing and the first holding member. The first squeeze film damper communicates with the first supplying passage.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: September 10, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takeshi Ogata, Tadayoshi Shoyama, Akira Hiwata, Hidetoshi Taguchi, Kazuyuki Kouda, Hiroshi Hasegawa
  • Publication number: 20190194567
    Abstract: The present invention, in one aspect, provides a refrigerating machine oil including a lubricating base oil and a compound represented by the following formula (A): wherein R1 and R2 each independently represent a monovalent hydrocarbon group, and R3 and R4 each independently represent a hydrogen atom or an alkyl group, the refrigerating machine oil being used with a refrigerant including an unsaturated hydrofluorocarbon.
    Type: Application
    Filed: September 14, 2017
    Publication date: June 27, 2019
    Applicant: JXTG NIPPON OIL & ENERGY CORPORATION
    Inventors: Yohei SHONO, Kentaro YAMAGUCHI, Yuya MIZUTANI, Takeshi OKIDO, Hidetoshi OGATA
  • Publication number: 20190161701
    Abstract: The present invention provides a refrigerating machine oil including a lubricating base oil and a compound represented by the following formula (A): wherein Ra and Rb each independently represent a monovalent hydrocarbon group, Rc represents a divalent hydrocarbon group, X represents a polar group, and Za and Zb each independently represent oxygen atom or sulfur atom.
    Type: Application
    Filed: July 28, 2017
    Publication date: May 30, 2019
    Applicant: JXTG NIPPON OIL & ENERGY CORPORATION
    Inventors: Yohei SHONO, Yuya MIZUTANI, Kentaro YAMAGUCHI, Akira TADA, Hidetoshi OGATA
  • Publication number: 20190127659
    Abstract: The present invention provides a refrigerating machine oil comprising: a lubricating base oil; and 40 mass % or less of a polymer, based on a total amount of the refrigerating machine oil, the polymer having a structural unit represented by the following formula (I) and a weight average molecular weight of from 500 to 100000. [In formula (I), Ra, Rb and Rc each independently represents a hydrogen atom or a hydrocarbon group, and Rd represents an oxygen-containing organic group or a C1-18 hydrocarbon group.
    Type: Application
    Filed: April 14, 2017
    Publication date: May 2, 2019
    Applicant: JXTG Nippon Oil & Energy Corporation
    Inventors: Hiroko SHIMPO, Kentaro YAMAGUCHI, Hidetoshi OGATA, Takeshi OKIDO
  • Publication number: 20190078005
    Abstract: The present invention provides a refrigerating machine oil comprising, as a base oil, at least one oxygen-containing oil having a carbon/oxygen molar ratio of 2.5 or more and 7.5 or less, and the refrigerating machine oil being used with a 1-chloro-2,3,3,3-tetrafluoropropene refrigerant.
    Type: Application
    Filed: February 15, 2017
    Publication date: March 14, 2019
    Applicant: JXTG NIPPON OIL & ENERGY CORPORATION
    Inventors: Yohei SHONO, Akira TADA, Yuya MIZUTANI, Takeshi OKIDO, Hidetoshi OGATA
  • Publication number: 20180215977
    Abstract: The present invention provides a working fluid composition for a refrigerating machine containing: a refrigerating machine oil containing: a first ester that is a polyol ester of dipentaerythritol and at least one fatty acid selected from fatty acids having 4 to 10 carbon atoms, and has a kinematic viscosity at 100° C. of 7.0 mm2/s or more; and a second ester that is a complex ester of a polyhydric alcohol containing at least one selected from neopentyl glycol, trimethylolpropane and pentaerythritol, a polybasic acid having 6 to 12 carbon atoms, and a monohydric alcohol having 4 to 18 carbon atoms or a fatty acid having 4 to 18 carbon atoms; and a refrigerant containing difluoromethane.
    Type: Application
    Filed: July 26, 2016
    Publication date: August 2, 2018
    Applicant: JXTG NIPPON OIL & ENERGY CORPORATION
    Inventors: Takeshi OKIDO, Hiroko SHIMPO, Yuya MIZUTANI, Hidetoshi OGATA