Patent application number | Description | Published |
20090087672 | RARE EARTH MAGNET AND ITS PRODUCTION METHOD - The present invention has aimed to provide a method which is capable of producing a rare earth magnet having a protective layer that can provide a sufficient water resistance. The present invention provides a method for producing a rare earth magnet comprising a magnet body containing a rare earth element and a protective layer with high water resistance formed on the surface of the magnet body, the method comprising a first step in which a zinc compound soluble in an alkaline solution is dissolved in an alkali silicate solution to prepare a treatment solution, a second step in which the treatment solution is attached on the surface of the magnet body, and a third step in which the treatment solution attached on the magnet body surface is cured to form a protective layer comprising the cured product of the treatment solution. | 04-02-2009 |
20100144995 | METHOD FOR PRODUCING THERMOPLASTIC RESIN, POLYESTER RESIN AND POLYCARBONATE RESIN, AND THEIR APPLICATIONS - The invention relates to a method for producing a thermoplastic resin, comprising using a composition at least comprising a fluorene-containing dihydroxy compound represented by the following formula (1) and a fluorene-containing hydroxy compound represented by the following formula (2) in an amount of from 0.5 parts by weight to 1.5 parts by weight relative to 100 parts by weight of the fluorene-containing dihydroxy compound of formula (1). | 06-10-2010 |
20100194508 | RARE-EARTH PERMANENT MAGNET - There is provided a rare-earth permanent magnet optimized to an IPM type motor for a car, capable of improving corrosion resistance, abrasion resistance, and impact resistance. The rare-earth permanent magnet | 08-05-2010 |
20100210811 | POLYCARBONATE RESIN COMPOSITION AND METHOD OF PRODUCING THE SAME - The present invention relates to a polycarbonate resin composition which comprises a polycarbonate resin having the repeating unit that is represented by the following general formula (1) and a hydroxyl group at terminal thereof and has the concentration of the terminal hydroxyl group of 1000 ppm or more. | 08-19-2010 |
20100330361 | METAL MAGNET AND MOTOR USING THE SAME - A metal magnet | 12-30-2010 |
20110112271 | POLYCARBONATE RESIN HAVING ULTRAVIOLET ABSORBING CAPACITY, RESIN COMPOSITION AND OPTICAL MATERIAL - A polycarbonate resin having at least one terminal group which is represented by formula (1), and a resin composition and an optical material comprising the polycarbonate resin are disclosed. In the formula, R | 05-12-2011 |
20110201762 | POLYCARBONATE RESIN COMPOSITION AND OPTICAL MATERIALS USING THE SAME - To provide a polycarbonate resin composition excellent in low-birefringence and environment resistance properties to be used for optical materials such as lenses, films or sheets. | 08-18-2011 |
20120112862 | RARE EARTH MAGNET AND METHOD FOR MANUFACTURING SAME - A rare-earth element including a magnet body containing a rare-earth element, and a protective layer formed on a surface of the magnet body. The protective layer may include a first layer covering the magnet body and containing a rare-earth element, and a second layer covering the first layer and containing substantially no rare-earth element. Another protective layer in accordance may include an inner protective layer and an outer protective layer successively from the magnet body side. The outer protective layer is any of an oxide layer, a resin layer, a metal salt layer, and a layer containing an organic-inorganic hybrid compound. | 05-10-2012 |