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| Number | Title | Issue Date |
| 7794915 | Hydrogenated ring-opening metathesis polymer, resist composition comprising the same and patterning method Provided is a resin having an alicyclic structure in a main chain, which is excellent in etching resistance and developing property, a resist composition for exposure with a high energy radiation using the resin, and a method for forming a pattern using the resist c... | 09/14/2010 |
| 7752869 | Optical fiber preform, method for manufacturing thereof, and optical fiber obtained by drawing thereof A method for manufacturing a preform having a core and a multilayer clad, includes covering a circumference of a rod including at least the core and an inner clad layer with a first tube including at least a high viscosity clad layer, and unifying the rod and the fi... | 07/13/2010 |
| 7694536 | Manufacturing apparatus of porous glass base material and glass base material for optical fiber A manufacturing apparatus of a porous glass base material is provided. The manufacturing apparatus includes a burner repeatedly moving back and forthreciprocating in a direction along a longitudinal direction of an axis-rotating base member glass rod, where the burn... | 04/13/2010 |
| 7691323 | Rare-earth alloy, rare-earth sintered magnet, and methods of manufacturing A rare-earth alloy ingot is produced by melting an alloy composed of 20-30 wt % of a rare-earth constituent which is Sm alone or at least 50 wt % Sm in combination with at least one other rare-earth element, 10-45 wt % of Fe, 1-10 wt % of Cu and 0.5-5 wt % of Zr, wi... | 04/06/2010 |
| 7638259 | Polyimide resin soluble in aqueous alkaline solution, composition comprising the resin and cured coating prepared from the composition A polyimide resin, characterized in that the polyimide resin comprises three kinds of repeating units represented by the formula (1), and has a weight average molecular weight, reduced to polystyrene, of from 5,000 to 500,000, an acryl equivalent of from 400 to 3,00... | 12/29/2009 |
| 7476454 | Substrate for magnetic recording medium Provided is a surface-treated substrate in which the roughness of the surface of the substrate is controlled. The surface-treated substrate can form a magnetic recording medium in which head flying stability is maintained and which has a magnetic film that can achie... | 01/13/2009 |
| 7355839 | Electrode for an electrochemical capacitor, a composition used for the electrode, a method of manufacturing the electrode, and an electrochemical capacitor using the electrode An electrode for an electrochemical capacitor which contains an electrode, a collector, an electrolyte solution and a separator, wherein the electrode contains at least a conductive material and a polyimide silicone of formula (1) | 04/08/2008 |
| 7351504 | Photomask blank substrate, photomask blank and photomask In a quadrangular photomask blank substrate with a length on each side of at least 6 inches, which has a pair of strip-like regions that extend from 2 to 10 mm inside each of a pair of opposing sides along an outer periphery of a substrate top surface, with a 2 mm e... | 04/01/2008 |
| 7239018 | Composition for forming a porous film prepared by hydrolysis and condensation of an alkoxysilane using a trialkylmethylammonium hydroxide catalyst Provided is a composition formed by hydrolysis and condensation composition of the alkoxysilane, the composition comprising a reduced amount of metallic and halogen impurities and being applicable as electronic material. Also provided is an insulating film having lo... | 07/03/2007 |
