专利名称：Field element core发明人：Kiyotaka Nishijima申请号：US12226914申请日：20070521公开号：US07863793B2公开日：20110104
专利附图：
摘要：A field element core has field magnet through holes and connecting portions.The field magnet through holes are circumferentially arranged in a circumferentialdirection around a given direction, and are adjacent each other in the circumferentialdirection to form pairs. Seen from the given direction, field magnet through holes
forming the same pair both extend along a certain one direction determined for eachpair. A connecting portion is provided between the field magnet through holes of thesame pair, and has the ends as its sides. The sides of the connecting portion are curved ina concave shape as a whole. Specifically, seen from the given direction, a tangent to theside is along the direction of extension of the connecting portion only at a certain oneposition between both ends of the side. The same holds true for the side.
申请人：Kiyotaka Nishijima
地址：Shiga JP
国籍：JP
代理机构：Birch, Stewart, Kolasch & Birch, LLP
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