Patents by Inventor Masato Kujime

Masato Kujime 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).

  • Refrigerating-machine oil composition and working fluid composition including same for refrigerating machine
    Patent number: 10266788
    Abstract: The present invention provides a refrigerating-machine oil composition which comprises the following ester additive (a) and the following ester base oil (b), the content of the ester additive (a) being 5-45 mass % with respect to the total amount of the refrigerating-machine oil composition. Ester additive (a): At least one ester of isotridecanoic acid with pentaerythritol Ester base oil (b): Polyhydric-alcohol esters comprising esters of two or more aliphatic monocarboxylic acids selected from among C4-9 aliphatic monocarboxylic acids with pentaerythritol.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: April 23, 2019
    Assignee: KH NEOCHEM CO., LTD.
    Inventors: Satoshi Hiyoshi, Junya Kishi, Masato Kujime
  • Refrigerating-Machine Oil Composition and Working Fluid Composition Including Same for Refrigerating Machine
    Publication number: 20170198236
    Abstract: The present invention provides a refrigerating-machine oil composition which comprises the following ester additive (a) and the following ester base oil (b), the content of the ester additive (a) being 5-45 mass % with respect to the total amount of the refrigerating-machine oil composition. Ester additive (a): At least one ester of isotridecanoic acid with pentaerythritol Ester base oil (b): Polyhydric-alcohol esters comprising esters of two or more aliphatic monocarboxylic acids selected from among C4-9 aliphatic monocarboxylic acids with pentaerythritol.
    Type: Application
    Filed: February 6, 2015
    Publication date: July 13, 2017
    Inventors: Satoshi Hiyoshi, Junya Kishi, Masato Kujime
  • Neopentyl glycol diester
    Patent number: 8772531
    Abstract: A neopentyl glycol diester which is a mixed ester of neopentyl glycol and carboxylic acids is provided, wherein the carboxylic acids consisting of isobutyric acid as well as 2-ethylhexanoic acid and/or 3,5,5-trimethylhexanoic acid. The neopentyl glycol diester may be used in a refrigerant oil or the like which exhibits excellent miscibility with a difluoromethane refrigerant among other properties.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: July 8, 2014
    Assignee: KH Neochem Co., Ltd.
    Inventors: Toshihiro Inayama, Satoshi Hiyoshi, Junya Kishi, Masato Kujime
  • Neopentyl Glycol Diester
    Publication number: 20130231498
    Abstract: A neopentyl glycol diester which is a mixed ester of neopentyl glycol and carboxylic acids is provided, wherein the carboxylic acids comprising isobutyric acid as well as 2-ethylhexanoic acid and/or 3,5,5-trimethylhexanoic acid. The neopentyl glycol diester may be used in a refrigerant oil or the like which exhibits excellent miscibility with a difluoromethane refrigerant among other properties.
    Type: Application
    Filed: June 30, 2011
    Publication date: September 5, 2013
    Applicant: KH NEOCHEM CO., LTD.
    Inventors: Toshihiro Inayama, Satoshi Hiyoshi, Junya Kishi, Masato Kujime