| 摘要 |
PROBLEM TO BE SOLVED: To provide a nib of a fountain pen which is completely different from conventional one, by using raw material which has not been used for the nib of the fountain pen.SOLUTION: A nib of a fountain pen is mainly formed of any one of corundum, topaz, emerald, and garnet. It is also possible to form a groove on a rear surface of the nib, instead of a breather hole and a slit cut of the nib. These jewels are used for main material of the nib of the fountain pen, so that the nib of the fountain pen has wear resistance and chemical resistance, and high-quality feeling and novelty can be imparted to the fountain pen.SELECTED DRAWING: Figure 1 |
