| KYODO YUSHI CO., LTD. Patent applications |
| Patent application number | Title | Published |
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| 20110294705 | NOISE REDUCING GREASE COMPOSITION - The invention provides a grease composition capable of smoothly operating the lubricated parts even under wide-ranging temperature conditions, and at the same time, exhibiting excellent noise reducing effect on, the lubricated parts. The grease composition containing a base oil and a thickener is provided, wherein the base oil includes at least one first base oil selected from the group consisting of poly-α-olefins and ethylene-α-olefin oligomers and at least one second base oil selected from the group consisting of polybutene, polyisobutylene, polymethacrylate, and styrene based copolymers, with the first base oil being contained in an amount of 65 mass % or more and the second base oil being contained in an amount of 1 mass % or more and less than 35 mass % based on the total mass of the base oil, the base oil having a kinematic viscosity of 350 to 1400 mm | 12-01-2011 |
| 20110168479 | LUBRICANT COMPOSITION, SPEED REDUCTION GEAR, AND ELECTRIC POWER STEERING APPARATUS - A lubricant composition, which is low in friction, does not have an attacking property against polyamide resin, etc., is excellent in heat resistance, and especially does not undergo deterioration or loss of the respective characteristics in a short term when used under a high temperature environment, is provided along with a speed reduction gear and an electric power steering apparatus that use the lubricant composition. The lubricant composition has blended therein a synthetic hydrocarbon oil, a urea thickener, zinc stearate, and a sulfur-based antioxidant. A speed reduction gear has a portion of engagement of a small gear and a large gear filled with the lubricant composition. In an electric power steering apparatus, an output of a steering assisting electric motor is speed reduced and transmitted to a steering mechanism via the speed reduction gear. | 07-14-2011 |
| 20110086785 | GREASE COMPOSITION FOR AUTOMOBILE WHEEL BEARING - The present invention provides a grease composition for automobile wheel bearings, which contains (a) an urea thickener represented by general formula (1); R | 04-14-2011 |
| 20110059875 | GREASE COMPOSITION FOR CONSTANT VELOCITY JOINT AND THE CONSTANT VELOCITY JOINT - The invention provides a grease composition that can improve the durability and the temperature control properties of constant velocity joints and reduce the rotating torque at low temperatures, and a constant velocity joint where the above-mentioned grease composition is packed. The grease composition for constant velocity joints includes (a) a base oil containing a synthetic oil, (b) a thickener, (c) zinc dithiophosphate, (d) molybdenum dialkyl dithiocarbamate sulfide, and (e) zinc dialkyl dithiocarbamate. | 03-10-2011 |
| 20100298178 | LUBRICANT COMPOSITION AND MECHANICAL MEMBER - The invention provides a lubricant composition capable of favorably preventing the members from causing hydrogen embrittlement-induced flaking when the members are operated under the conditions where the oil film is thin (namely, the metal surfaces considerably come in contact with each other). The lubricant composition used for lubricating the steel mechanical members operated by a rolling motion or rolling-sliding motion is characterized by containing a base oil and additives, the additives including an organic sulfonate rust inhibitor and a load carrying additive. | 11-25-2010 |
| 20100093567 | GREASE COMPOSITION AND BEARING - A grease is provided which has an improved inflow property of the grease into a lubrication unit and has a long life when used for bearings even under a high temperature environment. | 04-15-2010 |
| 20100087344 | GREASE COMPOSITION AND MACHINE PART - A grease composition which has an excellent anti-fretting property and general versatility, and a machine part which uses the same are provided. A grease composition comprising a urea thickener, a base oil, a phosphorothioate compound and an amine compound and a machine part which uses the same are provided. | 04-08-2010 |
| 20090298730 | METALWORKING OIL COMPOSITION, METALWORKING METHOD AND METALWORK - The invention provides a metalworking oil composition which is used for a very small amount of oil-feeding type metalworking method, said composition comprising a base oil selected from the group consisting of natural fats and oils, derivatives thereof and synthetic ester oils; and an antirust agent comprising a sorbitan fatty acid ester and a phospholipid, and a metalworking method using the composition and metalwork obtained by the metalworking method. The oil composition shows excellent lubricity and antirust property and is suitably used for metalworking of metallic materials such as cast iron, steel, stainless steel, and nonferrous metal (such as Al alloy and Mg alloy) by a method in which a very small amount of oil is supplied. | 12-03-2009 |
| 20090118151 | Metal-Processing Oil Composition and Metal-Processing Method - The present invention provides a water-soluble metal-processing oil composition which is excellent in putrefaction resistant properties and sparingly has any bad influence upon global environment and human body and a method for processing metals which makes use of the metal-processing oil composition. | 05-07-2009 |
| 20090003742 | Grease Composition For Hub Unit Bearing, And Hub Unit Bearing For Vehicle - An object of the invention is to provide a grease composition capable of keeping a good lubrication condition for a long period of time even when water has mixed therein, thereby inhibiting white structure flaking and corrosion. Another object is to provide a vehicular hub unit bearing which hardly suffers from white structure flaking and corrosion even when used in an environment where water may penetrate into it and which therefore has a long life. | 01-01-2009 |
| 20080219610 | Waterproof Grease Composition and Wheel-Supporting Roller Bearing - The waterproof grease composition of the present application comprises a base oil that comprises at least one of mineral oil and synthetic oil and having a kinematic viscosity of from 10 to 400 mm | 09-11-2008 |
