| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a thermochromic writing utensil comprising a pen nib capable of writing as the thermochromic writing utensil, a friction portion capable of heat-decoloring the trace of the writing by friction and an input portion that enables inputting into an electrostatic input device.SOLUTION: A friction portion 6b also serves as an input portion 6b having electroconductivity that operates an input screen with an input pen and fingers and performs inputting into an input device that detects a position of an operation portion of the input screen by an electrostatic capacitance system, where a friction coefficient when the friction portion 6b slidably contacts the input screen of the input device is set to be smaller than a friction coefficient when the friction portion 6b slidably contacting the paper surface.</p> |
