发明名称 |
Friction body, writing instrument and writing instrument set |
摘要 |
A friction body for allowing an image having reversible thermochromism to change color from a first state to a second state by frictional heat, wherein the above-mentioned frictional body has a contact area ranging from 0.5 to 15 mm 2 when pressed onto a glass plate with a load of 1000 g, a writing instrument containing a reversible thermochromic ink, which is provided with the above-mentioned frictionbody, and a writing instrument set having the writing instrument containing a reversible thermochromic ink and the above-mentioned friction body.
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申请公布号 |
EP1820662(A2) |
申请公布日期 |
2007.08.22 |
申请号 |
EP20070001743 |
申请日期 |
2007.01.26 |
申请人 |
THE PILOT INK CO., LTD. |
发明人 |
SENGA, KUNIYUKI;ITO, YOSHIHIRO |
分类号 |
B43K29/00;B44F1/00;C09K9/00 |
主分类号 |
B43K29/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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