专利名称：Keyboard musical instrument having keys
regulated with stable key balance piecesand process for fabricating keys
发明人：Satoshi Inoue申请号：US10734376申请日：20031211公开号：US07129404B2公开日：20061031
专利附图：
摘要：A key is an indispensable component parts of an acoustic or electronic
keyboard musical instrument, and key balancers are embedded in the key for varying the
moment exerted on the key; the key balancers are fastened to the key by means of ananchor so that the key balancers are neither chattered in nor dropped out from the key.
申请人：Satoshi Inoue
地址：Hamamatsu JP
国籍：JP
代理机构：Morrison & Foerster LLP
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