| 20110286312 | MAGNETICALLY INSENSITIVE, HIGHLY HARD AND CONSTANT-MODULUS ALLOY, AND ITS PRODUCTION METHOD, AS WELL AS HAIR SPRING, MECHANICAL DRIVING APPARATUS AND WATCH AND CLOCK - [Task] A constant-modulus alloy, which has a low saturation magnetic flux density to provide weakly magnetic properties, a high Young's modulus, a low temperature coefficient of Young's modulus, and high hardness, is provided. A hairspring, a mechanical driving apparatus and a watch and clock, in which the alloy is used, are provided. | 11-24-2011 |
