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:
Mar. 29, 2005
Filed:
Nov. 14, 2003
Applicants:
Takeshi Fujiwara, Nara, JP;
Sho Sasaki, Nara, JP;
Inventors:
Takeshi Fujiwara, Nara, JP;
Sho Sasaki, Nara, JP;
Assignee:
Omron Corporation, Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01F001/68 ;
U.S. Cl.
CPC ...
Abstract
A flow sensor and a flow rate measuring method are disclosed, in which an error caused by dust attached to the flow sensor is accurately corrected taking advantage of the fact that the output characteristic of the flow sensor representing the relation between the temperature measured by a temperature measuring unit and the flow rate of the fluid undergoes a change with the dust attached. The flow sensor includes a thin-film bridge unit formed on a substrate, a heater arranged on the bridge unit, and a temperature measuring unit arranged on the bridge unit.