The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 15, 2013
Filed:
Mar. 17, 2009
Kazuki Yamamoto, Kyoto, JP;
Masateru Fukuoka, Osaka, JP;
Yoshinori Akagi, Osaka, JP;
Hiroji Fukui, Kouka, JP;
Kazuki Yamamoto, Kyoto, JP;
Masateru Fukuoka, Osaka, JP;
Yoshinori Akagi, Osaka, JP;
Hiroji Fukui, Kouka, JP;
Sekisui Chemical Co., Ltd., Osaka, JP;
Abstract
To provide a micropump device having good controllability over the amount of gas generated from the gas generating material and thus the amount of liquid fed by the micropump. The micropump device includes a micropumpand a controller. The micropumpincludes: a microchannelserving as a channel for liquid; a gas generating materialgenerating a gas upon exposure to light and supplying the gas to the microchannel; and a light sourcefor irradiating the gas generating materialwith light. The controllersupplies to the light sourcea control pulse signal CS that causes the light sourceto blink on and off in a binary manner by repeating a pulse train pattern composed of a fixed number of bits each capable of having two states, one of which is a first level allowing the light sourceto be turned on and the other of which is a second level allowing the light sourceto be turned off.