| 摘要 |
<P>PROBLEM TO BE SOLVED: To attach a display having superior contrast and visibility by a laser marking. <P>SOLUTION: A colorant is incorporated into a thermoplastic resin, a thermosetting resin or a rubber constituting an endoscope 3, and a portion incorporated with the colorant is irradiated with a pulse laser beam of YAG or YVO<SB>4</SB>having a wavelength of 355, 532 or 1064 nm, whereby a marking including letters or symbols is color-developed. <P>COPYRIGHT: (C)2008,JPO&INPIT |
