Writing implement

专利名称：Writing implement

发明人：Hisashi Iida,Shigeru Okumura,Kazuaki

Matsumoto,Seiichi Kobayashi,TakeshiKobayashi,Yusuke Kobayashi,Yosuke Mito

申请号：US10488049申请日：20040227

公开号：US20040240925A1公开日：20041202

专利附图：

摘要：A writing implement includes a cylindrical shaft member, a pen tip memberwhich is fixed to one end of the shaft member and from which colored ink seeps out,

liquid for ink which is stored in the shaft member and which comprises a major

component of the colored ink seeping out from an end of the pen tip member, colorantto be added to the liquid for ink, and a valve member for isolating the colorant from theliquid for ink. In the writing implement, at least a part of a cylindrical side surface of theshaft member corresponding to a part where the liquid for ink is stored is formed to betransparent, the valve member is positioned between the storing part of the liquid for inkand the colorant, and the storing part of the liquid for ink is provided with a pressure-regulating part.

申请人：IIDA HISASHI,OKUMURA SHIGERU,MATSUMOTO KAZUAKI,KOBAYASHISEIICHI,KOBAYASHI TAKESHI,KOBAYASHI YUSUKE,MITO YOSUKE

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