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:
Feb. 25, 2020
Filed:
Aug. 23, 2017
Taiyo Yuden Co., Ltd., Tokyo, JP;
Izumi Igawa, Tokyo, JP;
Ryuichi Sunagawa, Tokyo, JP;
TAIYO YUDEN CO., LTD., Tokyo, JP;
Abstract
A water level measuring device for measuring a water level on a road surface includes a reflection member disposed in the road surface, the reflection member having a reflection surface that is parallel to the road surface, the reflection surface having a greater reflectance with respect to a probing radio wave than the road surface; an antenna unit transmitting the probing radio wave toward the reflection surface, the antenna unit also receiving a reflected wave of the probing radio wave that has been reflected from the reflection surface or water over the reflection surface; and a measuring unit connected to the antenna unit, the measuring unit processing the reflected wave received by the antenna unit to calculate and determine the water level on the road surface based on a return time of the reflected wave.