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.

Date of Patent:
Jun. 02, 2020

Filed:

Apr. 30, 2019
Applicants:

Nikkiso Co., Ltd., Tokyo, JP;

Metawater Co., Ltd., Tokyo, JP;

Senko Riken Co., Ltd., Kobe-shi, Hyogo, JP;

Inventors:

Tetsumi Ochi, Tokyo, JP;

Shinya Watanabe, Hakusan, JP;

Junichi Shiga, Tokyo, JP;

Tsukasa Kusano, Tokyo, JP;

Eiichi Tsuga, Kobe, JP;

Yusuke Kawakami, Kobe, JP;

Assignees:

NIKKISO CO., LTD., Tokyo, JP;

METAWATER CO., LTD., Tokyo, JP;

SENKO RIKEN CO., LTD., Kobe-Shi, Hyogo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/32 (2006.01);
U.S. Cl.
CPC ...
C02F 1/325 (2013.01); C02F 1/32 (2013.01); C02F 2201/004 (2013.01); C02F 2201/3222 (2013.01); C02F 2303/04 (2013.01); Y02E 10/22 (2013.01);
Abstract

A water treatment device includes: a dual-pipe structure unit including an outer pipe, an inner pipe provided in the outer pipe, and a prevention member provided between the outer pipe and the inner pipe; and a light source unit radiating ultraviolet light in the axial direction to irradiate water subject to treatment flowing in the inner pipe. The inner pipe includes an opposing end facing the light source unit across a gap and an inflow end positioned opposite to the opposing end. The outer pipe includes an outflow port provided on an outer circumferential surface of the outer pipe. The water subject to treatment flowing out of the inner pipe via the gap flows out from the outflow port.


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