发明公开
- 专利标题: PEN POINT MADE OF INORGANIC MATERIAL
- 专利标题(中): 由无机材料制成的笔尖
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申请号: EP90908649.8申请日: 1990-06-07
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公开(公告)号: EP0433459A1公开(公告)日: 1991-06-26
- 发明人: SHIMOISHI, Tetsuo , KAWASHIMA, Kenshi 25-602, Ebitsuka 2-chome , TEZUKA, Kanji
- 申请人: TEIBOW COMPANY LIMITED
- 申请人地址: 1-2-1 Mukojuku Hamamatsu-shi Shizuoka JP
- 专利权人: TEIBOW COMPANY LIMITED
- 当前专利权人: TEIBOW COMPANY LIMITED
- 当前专利权人地址: 1-2-1 Mukojuku Hamamatsu-shi Shizuoka JP
- 代理机构: Denmark, James
- 优先权: JP145860/89 19890607
- 国际公布: WO9014963 19901213
- 主分类号: B43K1/00
- IPC分类号: B43K1/00
摘要:
A pen point made of an inorganic material, which is free of restrictions on the viscosity of ink and the particle diameter of pigment to be used, excellent in buckling strength, highly resistant to wear and solvent, and capable of mass production at low cost. It has such a structure that a mixture of fine particles of metal or ceramic with a binder is extruded, degreased, and sintered to form a continuous piece having a uniform cross-section and provided with through holes of various profiles along its axis permitting capillary movement of ink and grooves for ink passage with one end thereof forming a part of the surface sharpened at its tip to be used mainly for writing.
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