发明名称 |
WRITING IMPLEMENT AND WRITING IMPLEMENT SET |
摘要 |
<p>Provided are a writing instrument produced at a lower cost than conventional thermochromic writing instruments utilizing frictional heat, slim like a pencil and not bulky because it contains an ink directly in a barrel thereof, and excellent in portability; and a set of the writing instruments. The writing instrument 1 is obtained by directly filling a barrel thereof with an ink 2 which becomes colorless or colored, or undergoes a color change by heating and an ink follower 5 following the ink with its consumption; firmly fixing a writing tip portion 3 to the end of the barrel directly or via a relay member; and disposing a friction body 6 having an elasticity at the rear end portion of the barrel. The writing instrument set has a plurality of the writing instruments respectively different from each other in color tone.</p> |
申请公布号 |
EP2072277(A1) |
申请公布日期 |
2009.06.24 |
申请号 |
EP20070829930 |
申请日期 |
2007.10.16 |
申请人 |
THE PILOT INK CO., LTD. |
发明人 |
FUJITA, KATSUYUKI;TAKASU, YOUICHI;SENGA, KUNIYUKI |
分类号 |
B43K29/02;B43K1/08;B43K7/00;B43K8/02;B43K23/08;B43K29/00;C09D11/16;C09D11/17;C09D11/18 |
主分类号 |
B43K29/02 |
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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