| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a ball-point pen chip capable of maintaining its color display even when it rubs the other member such as an exterior body. <P>SOLUTION: In this ball-point pen chip, its recessed part formed on an outer face of a ball holder is colored with the color indicating an ink color. <P>COPYRIGHT: (C)2009,JPO&INPIT |
