| 发明名称 |
Friction body, writing instrument and writing instrument set |
| 摘要 |
There is provided a friction body which is adapted to rub a thermochromic image or handwriting formed on a paper surface by use of thermochromic ink to thermally discolor the thermochromic image or handwriting by frictional heat resultant from rubbing, a thermal conductivity of a friction portion of the friction body is set to be within 0.05 W/(m€¢K) to 50 W/(m€¢K). |
| 申请公布号 |
EP2368721(A1) |
申请公布日期 |
2011.09.28 |
| 申请号 |
EP20110169482 |
申请日期 |
2008.05.21 |
| 申请人 |
THE PILOT INK CO., LTD. |
发明人 |
WASE, TAKASHI;YASUDA, MICHIYUKI;OKAWARA, YOSHIAKI |
| 分类号 |
B43K7/00;B43K1/08;B43K7/02;B43K7/10;B43K8/04;B43K8/06;B43K23/12;B43K29/02;B43L19/00;C09D11/16;C09D11/18 |
主分类号 |
B43K7/00 |
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代理人 |
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