TOP > 外国特許検索 > Flow control method for micro system

Flow control method for micro system

外国特許コード F110005285
整理番号 E04901US
掲載日 2011年8月29日
出願国 アメリカ合衆国
出願番号 43289701
公報番号 20040050436
公報番号 7204263
出願日 平成13年11月8日(2001.11.8)
公報発行日 平成16年3月18日(2004.3.18)
公報発行日 平成19年4月17日(2007.4.17)
国際出願番号 JP2001009782
国際公開番号 WO2002044823
国際出願日 平成13年11月8日(2001.11.8)
国際公開日 平成14年6月6日(2002.6.6)
優先権データ
  • 特願2000-362915 (2000.11.29) JP
  • 2001WO-JP09782 (2001.11.8) WO
発明の名称 (英語) Flow control method for micro system
発明の概要(英語) (US7204263)
A method of simply controlling the flow of fluid in a micro system without using a complicated value structure, comprising the steps of adding the substance transformed from sol-gel by stimulation to the fluid flowing through the micro flow passage of the micro system, and adding the stimulation to the fluid at a desired position on the micro flow passage to transform the fluid into gel for flow control.
特許請求の範囲(英語) [claim1]
1. A method for controlling the flow of a fluid in a micro system which includes a minute flow passage, comprising the steps of adding a sol-gel transitional substance to a fluid flowing in the minute flow passage of the micro system, wherein the sol-gel transitional substance transforms from a sol state to a gel state upon application of a stimulation, and applying the stimulation to a point on the minute flow passage to transform the sol-gel transitional substance at the point in the minute flow passage from the sol state to the gel state, and wherein the sol-gel transitional substance is added to the fluid in an amount sufficient upon stimulation to transform the fluid to a gel state and to stop the flow of the fluid or to adjust the flow amount of the fluid or to adjust the flow rate of the fluid in the minute flow passage of the micro system.
[claim2]
2. The method for controlling the flow in the micro system according to claim 1, wherein the stimulation is a temperature change.
[claim3]
3. The method for controlling the flow in the micro system according to claim 2, wherein the temperature change is generated by a local irradiation of an infrared ray.
[claim4]
4. The method for controlling the flow in the micro system according to claim 3, wherein the sol-gel transitional substance is a methyl cellulose.
[claim5]
5. A micro system for controlling the flow of a fluid by the method according to claim 3, comprising a substrate containing a minute flow passage for a fluid and a device for applying a stimulation to a point on the minute flow passage, wherein the stimulation transforms a sol-gel transitional substance at the point in the minute flow passage from a sol state to a gel state.
[claim6]
6. An apparatus containing the micro system of claim 5.
[claim7]
7. The method for controlling the flow in the micro system according to claim 2, wherein the sol-gel transitional substance is a methyl cellulose.
[claim8]
8. A micro system for controlling the flow of a fluid by the method according to claim 2, comprising a substrate containing a minute flow passage for a fluid and a device for applying a stimulation to a point on the minute flow passage, wherein the stimulation transforms a sol-gel transitional substance at the point in the minute flow passage from a sol state to a gel state.
[claim9]
9. An apparatus containing the micro system of claim 8.
[claim10]
10. The method for controlling the flow in the micro system according to claim 1, wherein the stimulation is a voltage.
[claim11]
11. The method for controlling the flow in the micro system according to claim 10, wherein the sol-gel transitional substance is a methyl cellulose.
[claim12]
12. A micro system for controlling the flow of a fluid by the method according to claim 10, comprising a substrate containing a minute flow passage for a fluid and a device for applying a stimulation to a point on the minute flow passage, wherein the stimulation transforms a sol-gel transitional substance at the point in the minute flow passage from a sol state to a gel state.
[claim13]
13. An apparatus containing the micro system of claim 12.
[claim14]
14. The method for controlling the flow in the micro system according to claim 1, wherein the sol-gel transitional substance is a methyl cellulose.
[claim15]
15. A micro system for controlling the flow of a fluid by the method according to claim 14, comprising a substrate containing a minute flow passage for a fluid and a device for applying a stimulation to a point on the minute flow passage, wherein the stimulation transforms a sol-gel transitional substance at the point in the minute flow passage from a sol state to a gel state.
[claim16]
16. Previously An apparatus containing the micro system of claim 15.
[claim17]
17. A micro system for controlling the flow of a fluid by the method according to claim 1, comprising a substrate containing a minute flow passage for a fluid and a device for applying a stimulation to a point on the minute flow passage, wherein the stimulation transforms a sol-gel transitional substance at the point in the minute flow passage from a sol state to a gel state.
[claim18]
18. An apparatus containing the micro system of claim 17.
  • 発明者/出願人(英語)
  • TSUKITA SHOUICHIROU
  • FUNATSU TAKASHI
  • SHOUJI SHUICHI
  • JAPAN SCIENCE AND TECHNOLOGY AGENCY
国際特許分類(IPC)
米国特許分類/主・副
  • 137/2
  • 137/807
  • 137/828
  • 204/601
参考情報 (研究プロジェクト等) ERATO TSUKITA Cell Axis AREA
ライセンスをご希望の方、特許の内容に興味を持たれた方は、問合せボタンを押してください。

PAGE TOP

close
close
close
close
close
close