发明授权
- 专利标题： Liquid consumption status detecting method, liquid container, and ink cartridge
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申请号： US09574015申请日： 2000-05-19
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公开(公告)号： US07267000B1公开(公告)日： 2007-09-11
- 发明人: Minoru Usui , Kenji Tsukada , Munehide Kanaya , Noboru Tamura
- 申请人： Minoru Usui , Kenji Tsukada , Munehide Kanaya , Noboru Tamura
- 申请人地址： JP Tokyo
- 专利权人： Seiko Epson Corporation
- 当前专利权人： Seiko Epson Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Sughrue Mion, PLLC
- 优先权： JP11-139683 19990520; JP11-147538 19990527; JP11-256522 19990910
- 主分类号： G01F23/00
- IPC分类号： G01F23/00
摘要：
A method of detecting a consumption status of liquid contained in a liquid container, comprising steps of: preparing a detection device having a piezoelectric element and attaching the detection device on a desired position of the liquid container so that at least a part of the detection device contacting the liquid; measuring a residual vibration of the detection device; and detecting the consumption status of the liquid contained in the liquid container on the basis of a result of the measurement of the residual vibration.