发明授权
- 专利标题： Ink and eraser of the ink
- 专利标题（中）： 油墨和橡皮擦油墨
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申请号： US452050申请日： 1982-12-22
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公开(公告)号： US4557618A公开(公告)日： 1985-12-10
- 发明人: Masahiro Iwata , Yushi Miyashita , Yuichi Taka
- 申请人： Masahiro Iwata , Yushi Miyashita , Yuichi Taka
- 申请人地址： JPX Tokyo
- 专利权人： Pentel Kabushiki Kaisha
- 当前专利权人： Pentel Kabushiki Kaisha
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX56-212257 19811225; JPX57-11999 19820128; JPX57-56625[U]JPX 19820419
- 主分类号： B43K8/02
- IPC分类号： B43K8/02 ; B43K23/12 ; B43K29/05 ; C09D10/00 ; C09D11/00 ; B43K27/12 ; B43K7/00
摘要：
Colored ink comprising a developer having a phenolic hydroxyl group, an electron-donating colorless dye which develops a color by the action of the developer, and a solvent which does not inhibit a color developing reaction. Handwriting written in this colored ink can be erased by using an eraser comprising a desensitizing compound which makes the colored electron-donating dye colorless.
公开/授权文献
- US4975638A Test probe assembly for testing integrated circuit devices 公开/授权日：1990-12-04
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