Patents by Inventor Takeshi Okido

Takeshi Okido 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: 20150008358
    Abstract: A working fluid composition for a refrigerating machine of the invention comprises a refrigerant comprising difluoromethane and an unsaturated fluorinated hydrocarbon wherein a mass of the difluoromethane/the unsaturated fluorinated hydrocarbon is 95/5 to 10/90, and a refrigerating machine oil comprising at least one base oil selected from among polyol esters with a carbon/oxygen molar ratio of 3.2 to 5.8 and polyvinyl ethers with a carbon/oxygen molar ratio of 3.2 to 5.8.
    Type: Application
    Filed: October 25, 2012
    Publication date: January 8, 2015
    Inventors: Takeshi Okido, Masanori Saito, Kuniko Adegawa
  • Publication number: 20130207024
    Abstract: The refrigerating machine oil of the invention includes an ester of a polyhydric alcohol and a fatty acid, wherein the molar ratio of C4-C6 fatty acid and C7-C9 branched fatty acid in the fatty acid is between 15:85 and 90:10, the C4-C6 fatty acid includes 2-methylpropanoic acid, and the ratio of the total C4-C6 fatty acid and C7-C9 branched fatty acid in the total fatty acids composing the ester is at least 20 mol %. The working fluid composition for a refrigerating machine according to the invention comprises the refrigerating machine oil, a difluoromethane refrigerant and/or an unsaturated fluorinated hydrocarbon refrigerant.
    Type: Application
    Filed: August 5, 2011
    Publication date: August 15, 2013
    Applicant: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Katsuya Takigawa, Masanori Saito, Takeshi Okido, Kuniko Takahashi
  • Publication number: 20120322706
    Abstract: The lubricating oil composition of the invention comprises a lubricant base oil, a 3,4,5-trihydroxybenzoic acid ester at 5-5000 ppm by mass, and a phosphorus compound at 0.001-10.0% by mass, based on the total mass of the lubricating oil composition. The lubricating oil composition of the invention significantly lowers wear and exhibits a stable low frictional coefficient, while having a high rust-preventing effect for iron-based sliding sections. The lubricating oil composition of the invention is therefore suitable for prolonged use, and exhibits a notable effect for energy savings as well due to its stable low frictional coefficient property.
    Type: Application
    Filed: December 10, 2010
    Publication date: December 20, 2012
    Applicant: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Tomonari Matsumoto, Fumiyuki Nara, Takeshi Okido, Katsuya Takigawa
  • Publication number: 20120228541
    Abstract: The working fluid composition for a refrigerating machine of this invention comprises a base oil containing an ether-based compound, an amine salt of an acidic phosphoric acid ester, at least one compound selected from the group consisting of amine-based antioxidants, metal inactivating agents and alicyclic epoxy compounds, and an unsaturated fluorinated hydrocarbon refrigerant. The refrigerating machine oil of the invention comprises a base oil containing an ether-based compound, an amine salt of an acidic phosphoric acid ester, and at least one compound selected from the group consisting of amine-based antioxidants, metal inactivating agents and alicyclic epoxy compounds, and it is to be used together with an unsaturated fluorinated hydrocarbon refrigerant.
    Type: Application
    Filed: August 16, 2010
    Publication date: September 13, 2012
    Applicant: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Katsuya Takigawa, Yuji Shimomura, Masanori Saito, Ken Sawada, Takeshi Okido