Electronic pen stylus

1. An electronic pen stylus comprising:

a front-end part which, in operation, comes into contact with a position pointing input surface; and

a rod-shaped axial center part formed integrally with the front-end part,

wherein at least the front-end part is made of a filler-mixed resin of which a base resin is mixed with a fibrous material as a filler having a hardness that is harder than a hardness of the base resin,

wherein both the front-end part and the axial center part are made of the filler-mixed resin,

wherein the fibrous material in the front-end part is higher in density than in the axial center part, and

wherein the axial center part is thinner than the front-end part.

2. The electronic pen stylus according to claim 1 , wherein a fiber length of the fibrous material is less than a thickness of the front-end part and a thickness of the axial center part.

3. The electronic pen stylus according to claim 2 , wherein a lengthwise direction of the fibrous material in the front-end part is oblique along a contour of a tip surface of the front-end part.

4. The electronic pen stylus according to claim 1 , wherein the hardness of the fibrous material is lower than a hardness of glass fiber or carbon fiber.

5. The electronic pen stylus according to claim 4 , wherein the fibrous material is poly-paraphenylene terephthalamide fiber.

6. The electronic pen stylus according to claim 1 , wherein, in operation, the base resin is worn off by friction between the front-end part and the position pointing input surface.

7. The electronic pen stylus according to claim 1 , wherein the fibrous material is made of a material having a tensile strength that is higher than a tensile strength the base resin.

8. The electronic pen stylus according to claim 1 , wherein the axial center part is covered with an outer coat made of a material having a hardness that is higher than the hardness of the base resin.