Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


Harutomo Ikeda, Chiba JP

Harutomo Ikeda, Chiba JP

Patent application numberDescriptionPublished
20090082232REFRIGERATING-MACHINE OIL COMPOSITION AND COMPRESSOR AND REFRIGERATING APPARATUS BOTH EMPLOYING THE SAME - The present invention provides a refrigerating machine oil composition for use in a compressor for a refrigerator in which a sliding surface of at least a part of constitutional members of the compressor is coated with a lubrication film-forming composition containing a resin having a heat distortion temperature of 100° C. or higher as a binder, and a solid lubricant, wherein the refrigerating machine oil composition contains a base oil made of a polyoxyalkylene glycol having a kinematic viscosity of from 3 to 50 mm03-26-2009
20100005829LUBRICANT FOR COMPRESSION REFRIGERATING MACHINE AND REFRIGERATING APPARATUS USING THE SAME - The present invention provides a lubricating oil for a compression type refrigerator including a polyvinyl ether-based compound which containing an alkylene glycol or polyoxyalkylene glycol unit and a vinyl ether unit in a molecule and having a molecular weight in a range of 300 to 3,000 and one or more kinds of phosphorous compound selected from a phosphate having 25 or more carbon atoms, a phosphite having 10 to 60 carbon atoms, an amine salt of phosphate having 10 to 60 carbon atoms, and a metal salt of phosphate having to 60 carbon atoms. The lubricating oil for a compression type refrigerator of the present invention has high compatibility and high viscosity index, and is excellent in anti-seizure property and also in stability under carbon dioxide atmosphere.01-14-2010
20100005830LUBRICANT FOR COMPRESSION REFRIGERATING MACHINE AND REFRIGERATING APPARATUS USING THE SAME - The present invention provides a lubricating oil for a compression type refrigerator including a polyvinyl ether-based compound containing an alkylene glycol or polyoxyalkylene glycol unit and a vinyl ether unit in a molecule and having a molecular weight in a range of 300 to 3,000, and a dehydrating agent. The lubricating oil for a compression type refrigerator of the present invention has high miscibility and high viscosity index, and excellent in stability without degradation and alteration due to hydrolysis under carbon dioxide atmosphere.01-14-2010
20100025621LUBRICANT FOR COMPRESSION REFRIGERATING MACHINE AND REFRIGERATING APPARATUS USING THE SAME - The present invention provides a lubricating oil for a compression type refrigerator including a polyvinyl ether-based compound containing an alkylene glycol or polyoxyalkylene glycol unit and a vinyl ether unit in a molecule and having a molecular weight in a range of 300 to 3,000, and an organic carboxylic acid alkali metal salt. The lubricating oil for a compression type refrigerator of the present invention has high miscibility and high viscosity index, and excellent in wear resistance and storage stability under carbon dioxide atmosphere.02-04-2010
20100037648LUBRICANT FOR COMPRESSION REFRIGERATING MACHINE AND REFRIGERATING APPARATUS USING THE SAME - The present invention provides a lubricating oil for a compression type refrigerator including a polyvinyl ether-based compound containing an alkylene glycol or polyoxyalkylene glycol unit and a vinyl ether unit in a molecule and having a molecular weight in a range of 300 to 3,000, a metal deactivator, and at least one kind phosphorous compound selected from a phosphate and a phosphite. The lubricating oil for a compression type refrigerator of the present invention has high miscibility and high viscosity index, and is excellent in anti-seizure property and corrosion stability under carbon dioxide atmosphere.02-18-2010
20100071406LUBRICANT FOR COMPRESSION REFRIGERATING MACHINE AND REFRIGERATING APPARATUS USING THE SAME - The present invention provides a lubricating oil for a compression type refrigerator including a polyvinyl ether-based compound containing an alkylene glycol or polyoxyalkylene glycol unit and a vinyl ether unit in a molecule and having a molecular weight in a range of 300 to 3,000; and an organic carboxylic acid ester of a polyhydric alcohol in which the ester contains two or more free hydroxyl groups. The lubricating oil for a compression type refrigerator of the present invention has high miscibility and high viscosity index, and is excellent in wear resistance and also corrosion prevention property under carbon dioxide atmosphere.03-25-2010
20100132397LUBRICANT FOR COMPRESSION REFRIGERATING MACHINE AND REFRIGERATING APPARATUS USING THE SAME - The present invention provides a lubricating oil for a compression type refrigerator including a polyvinyl ether-based compound containing an alkylene glycol or polyoxyalkylene glycol unit and a vinyl ether unit in a molecule and having a molecular weight in a range of 300 to 3,000, an epoxy compound having 8 or more carbon atoms The lubricating oil for a compression type refrigerator of the present invention has high miscibility and high viscosity index, and is excellent in stability, and does not have an unpleasant odor under carbon dioxide atmosphere.06-03-2010
20100133463LUBRICATING OIL COMPOSITION FOR REFRIGERATORS - A lubricating oil composition for refrigerators including (A) a base oil containing as a main component a polyol ester compound obtained from a polyhydric alcohol selected from among pentaerythritol, dipentaerythritol, trimethylolpropane and neopentyl glycol and a C06-03-2010
20100147016LUBRICATING OIL COMPOSITION FOR REFRIGERATORS AND COMPRESSORS WITH THE COMPOSITION - A lubricating oil composition for refrigerators comprising a base oil which comprises as a main component a polyol ester compound obtained from a polyhydric alcohol selected from among pentaerythritol, dipentaerythritol, trimethylolpropane, and neopentyl glycol and a C06-17-2010
20100175421LUBRICANT COMPOSITION FOR REFRIGERATOR AND COMPRESSOR USING THE SAME - Provided is a lubricant composition for a refrigerator, which is characterized by using a substance mainly containing a polyoxyalkylene glycol derivative and having a hydroxyl number of 5 mgKOH/g or less, as a base oil. Also provided is a compressor using such the lubricant composition for a refrigerator. The lubricant composition for a refrigerator is used for a refrigerator which uses a refrigerant having a specific structure such as an unsaturated fluorohydrocarbon and being usable in current air-conditioning systems for cars or the like. The lubricant composition for a refrigerator exhibits excellent compatibility with the refrigerant, while having excellent stability. The compressor uses such the lubricant composition for a refrigerator.07-15-2010
20100234256LUBRICATING OIL COMPOSITION FOR REFRIGERATING MACHINE - A lubricating oil composition for refrigerator is formed by adding an organic compound that includes a double bond in the molecule such as α-olefin or conjugated diene to a base oil. Capable of being stably used for a long time in the presence of oxygen, the lubricating oil composition for refrigerator according to the invention is suitable for an open-type car air-conditioner, an electric driven car air-conditioner, a gas heat pump, an air conditioning device, a refrigerator, a vending machine, a showcase, various hot-water supply systems or a heating/cooling system.09-16-2010
20100281912LUBRICANT COMPOSITION FOR REFRIGERATING MACHINE AND COMPRESSOR USING THE SAME - A lubricating oil composition for refrigerator including a base oil and an acid scavenger, and a compressor using the composition are provided, where the acid scavenger is a polyalkylene glycol derivative represented by a formula (1) as follows:11-11-2010
20110000253LUBRICANT COMPOSITION FOR REFRIGERATING MACHINE - A lubricating oil composition for refrigerator is provided by adding base oil with biphenols selected from 4,4′-methylenebis(2,6-di-t-butyl-phenol), 2′2-methylenebis(4-methyl-6-t-butylphenol), 2,2′-methylenebis(4-ethyl-6-t-butylphenol) and 4,4′-butylidenebis(3-methyl-6-t-butylphenol).01-06-2011
20110049414LUBRICANT COMPOSITION FOR REFRIGERATING MACHINES - Provided is a lubricating oil composition for a refrigerator, the refrigerator using a refrigerant which has a low global warming potential and is applicable to, in particular, current car air conditioning systems or the like, that is, the refrigerant including at least one kind of fluorine-containing organic compounds selected from compounds represented by the following molecular formula (A) or including a combination of the fluorine-containing organic compound and a saturated fluorinated hydrocarbon compound,03-03-2011
20110057146LUBRICANT COMPOSITION FOR REFRIGERATING MACHINES - Provided is a lubricating oil composition for a refrigerator, the refrigerator using a refrigerant which has a low global warming potential and is applicable to, in particular, current car air conditioning systems or the like, that is, the refrigerant including at least one kind of fluorine-containing organic compounds selected from compounds represented by the following molecular formula (A) or including a combination of the fluorine-containing organic compound and a saturated fluorinated hydrocarbon compound,03-10-2011

Patent applications by Harutomo Ikeda, Chiba JP