Patent application number | Description | Published |
20090010585 | ROLLING BEARING AND METHOD FOR MANUFACTURING THE SAME - The present invention provides a rolling bearing excellent in insulating property and resistance to corrosion and chemicals such as acids, alkalis, and the like by forming a dense ceramic layer by using a method instead of a thermally spraying method. The rolling bearing includes an inner ring | 01-08-2009 |
20100090905 | DIELECTRIC ELASTOMER COMPOSITION AND ANTENNA MEMBER - The present invention provides a dielectric elastomer composition which has been improved to have an excellent flame-retardant property in consideration of influence on environment and a satisfactory dielectric characteristic as a material for an antenna; and a member for the antenna formed by molding the dielectric elastomer composition. The dielectric elastomer composition contains 50 to 400 parts by weight of a metal hydroxide such as aluminum hydroxide powder, magnesium hydroxide powder and 10 to 200 parts by weight of a brominated flame retardant except polybromodiphenyl ether and polybromobiphenyl for 100 parts by weight of an elastomer such as ethylene propylene rubber. At a frequency of 1 GHz and a temperature of 30° C., a dielectric constant of the dielectric elastomer composition is not less than 3, and a dielectric loss tangent thereof is not more than 0.02. The member for the antenna is formed by molding the dielectric elastomer composition. | 04-15-2010 |
20100103638 | HIGHLY DIELECTRIC ELASTOMER MOLDED BODY AND ELECTRONIC COMPONENT MATERIAL FOR HIGH FREQUENCY USE - The present invention provides a highly dielectric elastomer molded body which is inexpensive and excellent in its dielectric property, shock resistance, flexibility, and processability and can be used at a UHF band having 800 to 960 MHz and an electronic component material for a high frequency use. The highly dielectric elastomer molded body is formed by molding a highly dielectric elastomer composition comprising an elastomer and dielectric ceramic powder added thereto. The molded body has a tensile elongation not less than 250% and a hardness not more than 70. In measurement at a frequency of 950 MHz, a dielectric constant of the highly dielectric elastomer molded body is 4 to 10, and a dielectric dissipation factor thereof is not more than 0.02. An electronic component material for a high frequency use is made of the highly dielectric elastomer molded body. | 04-29-2010 |
20100200816 | DIELECTRIC ELASTOMER COMPOSITION AND HIGH-FREQUENCY ELECTRONIC COMPONENT MATERIAL - It is an object of the present invention to provide a dielectric elastomer composition which has a sufficient dielectric property as a high-frequency electronic component material and to which an excellent flame retardance can be imparted as necessary in consideration of an influence on environment and the high-frequency electronic component material formed by molding the dielectric elastomer composition. The dielectric elastomer composition of the present invention comprises an elastomer to which (A) carbon black and (B) at least one powder selected from among magnesium hydroxide powder and dielectric ceramic powder is added. An average particle diameter of the carbon black is 50 to 200 nm, and 5 to 40 parts by weight thereof is added to 100 parts by weight of the elastomer. In the magnesium hydroxide powder, a content of ferric oxide is not more than 0.02 wt %. In at least one measuring condition selected from among a measuring condition (1) in which a frequency is 400 MHz and a temperature is 30° C. and a measuring condition (2) in which a frequency is 5 GHz and a temperature is 25° C., a dielectric constant is not less than three, and a dielectric dissipation factor is not more than 0.01. | 08-12-2010 |
20110195265 | HARD MULTILAYER FILM FORMED BODY AND METHOD FOR MANUFACTURING SAME - The present invention provides a hard multilayer film formed body which has an intermediate layer excellent in its adhesion to a base material and a DLC film which is a surface layer excellent in its wear resistance, prevents peeling from occurring between the DLC film and the intermediate layer, and is excellent in its wear resistance and a method for producing the same. A hard multilayer film formed body | 08-11-2011 |
20130016937 | ROLLING BEARINGAANM Tsutsui; HideyukiAACI MieAACO JPAAGP Tsutsui; Hideyuki Mie JPAANM Oohira; KouyaAACI MieAACO JPAAGP Oohira; Kouya Mie JPAANM Ito; NaokoAACI MieAACO JPAAGP Ito; Naoko Mie JP - The present invention provides a rolling bearing in which the peeling resistances of a DLC film formed on raceway of inner and outer rings and a sliding surface of a cage are improved to allow the intrinsic properties of the DLC film to be displayed so that the rolling bearing is excellent in its resistance to seizing, wear, and corrosion. A rolling bearing ( | 01-17-2013 |
20130182987 | CAGE FOR ROLLING BEARING AND ROLLING BEARING - It is an object of the present invention to provide a rolling bearing which can be used in conditions in which a DN value is not less than 1,500,000 and an operating temperature is not less than 200° C. and which can be securely operated for a sufficiently long period of time without seizing, even though the rolling bearing is used in a dry run state and a cage for the rolling bearing. A cage ( | 07-18-2013 |
20130301965 | MEMBER FOR ROLLING BEARING AND ROLLING BEARING - The present invention provides a member, for a resin-made rolling bearing, which has a low extent of a moisture absorption-caused change in its dimension and mechanical properties, keeps sufficiently high mechanical properties after the member absorbs moisture, and is excellent in its resistance to hydrolysis, grease deterioration, and heat and also provides the rolling bearing in which the member for the rolling bearing is used. A rolling bearing ( | 11-14-2013 |
20140030512 | AMORPHOUS CARBON FILM AND METHOD FOR FORMING SAME - The present invention provides a film formation method capable of forming a favorable amorphous carbon film under a low vacuum by using a bipolar-type PBII apparatus and the amorphous carbon film to be produced by the film formation method. The film formation method is carried out to form the amorphous carbon film under a low vacuum (1000 to 30000 Pa) by using a power source for the bipolar-type PBII apparatus. There are provided inside a chamber ( | 01-30-2014 |
20140219595 | HARD FILM, HARD FILM FORMED BODY, AND ROLLING BEARING - The present invention provides a hard film which has high wear resistance and excellent peeling resistance and can be prevented from peeling off a base material over a long period of time and a hard film formed body on which the hard film is formed. A hard film ( | 08-07-2014 |