发明授权
- 专利标题: Water-based ink composition and ballpoint pen using the same
- 专利标题(中): 水性墨水组合物和圆珠笔使用相同
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申请号: US10568315申请日: 2004-08-26
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公开(公告)号: US07473309B2公开(公告)日: 2009-01-06
- 发明人: Yoshito Tsumuraya
- 申请人: Yoshito Tsumuraya
- 申请人地址: JP Tokyo
- 专利权人: Mitsubishi Pencil Co., Ltd.
- 当前专利权人: Mitsubishi Pencil Co., Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Buchanan Ingersoll & Rooney PC
- 优先权: JPP2003-303300 20030827
- 国际申请: PCT/JP2004/012272 WO 20040826
- 国际公布: WO2005/021667 WO 20050310
- 主分类号: C09D11/02
- IPC分类号: C09D11/02
摘要:
Provided are a water-based ink composition characterized by containing 0.01 to 1.0% by weight of high molecular saccharides (trade name: Diutan gum) represented by Formula 1 as an essential component in the ink composition and a ballpoint pen in which an ink reservoir in a main body is charged with the above water-based ink composition.
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