![热变色书写工具](/CN/2013/1/22/images/201310110536.jpg)
基本信息:
- 专利标题: 热变色书写工具
- 专利标题(英):Thermochromic writing instrument
- 申请号:CN201310110536.4 申请日:2008-02-08
- 公开(公告)号:CN103192624A 公开(公告)日:2013-07-10
- 发明人: 今村善典 , 关根伸雄 , 安藤正史
- 申请人: 百乐墨水株式会社
- 申请人地址: 日本爱知县
- 专利权人: 百乐墨水株式会社
- 当前专利权人: 百乐墨水株式会社,株式会社百乐
- 当前专利权人地址: 日本爱知县
- 代理机构: 北京天昊联合知识产权代理有限公司
- 代理人: 顾红霞; 何胜勇
- 优先权: 2007-046226 2007.02.26 JP; 2007-190261 2007.07.21 JP; 2008-005267 2008.01.15 JP
- 分案原申请号: 2008800062231 2008.02.08
- 主分类号: B43K1/08
- IPC分类号: B43K1/08 ; B43K7/00 ; B43K23/12 ; B43K24/06 ; B43K24/08 ; B43K24/12 ; B43K27/12 ; B43K29/02
There is provided a thermochromic writing instrument containing a thermochromic ink. The thermochromic writing instrument contains a writing body internally accommodating the thermochromic ink; a barrel internally accommodating the writing body and enabling the writing body to move in a longitudinal direction; an operation portion used for enabling a pen tip of the writing body to be projectable/retractable from/into a front-end hole of the barrel; and a friction portion made of a elastic material with a lower wear feature and capable of thermally changing the color of the handwriting of the thermochromic ink by the frictional heat generated when the handwriting is rubbed. The operation portion and the friction portion are arranged at different parts in the barrel.
公开/授权文献:
- CN103192624B 热变色书写工具 公开/授权日:2016-06-29
IPC结构图谱:
B | 作业;运输 |
--B43 | 书写或绘图器具;办公用品 |
----B43K | 书写或绘图器具 |
------B43K1/00 | 笔尖(可连续调整的笔尖入B43K17/00);书写末端 |
--------B43K1/08 | .有圆珠的;圆珠或珠槽 |