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:
Sep. 02, 2025
Filed:
Feb. 19, 2025
Toflo Corporation, Tokyo, JP;
Takahiro Kawamoto, Tokyo, JP;
Takuo Shimada, Tokyo, JP;
Shinji Tobimatsu, Tokyo, JP;
Maya Nakamura, Tokyo, JP;
Yuka Fujie, Tokyo, JP;
TOFLO CORPORATION, Tokyo, JP;
Abstract
A flowmeter suitable for flow measurement of extremely-low temperature fluids and high temperature fluids includes a flow path pipe having a flow path for fluid to flow through; an impeller supported in the interior of the flow path pipe in a rotatable manner; and a sensor that measures the flow of the fluid flowing in the flow path through the rotation of the impeller. The sensor has a metal-based wiring substrate inside a sensor housing provided outside the flow path pipe. The wiring substrate is equipped with a magnetic sensor package that detects the magnetic force of the impeller; a heater that heats the wiring substrate; and a temperature control circuit that controls the heater to power on/off based on the temperature of the wiring substrate.