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US Patent 9233857 Sterilization device

Patent 9233857 was granted and assigned to nok (retail company) on January, 2016 by the United States Patent and Trademark Office.

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Is a
Patent
Patent
1

Patent attributes

Patent Applicant
nok (retail company)
nok (retail company)
1
Current Assignee
nok (retail company)
nok (retail company)
1
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
92338571
Patent Inventor Names
Hiroyuki Nikamoto1
Date of Patent
January 12, 2016
1
Patent Application Number
144021301
Date Filed
April 25, 2013
1
Patent Citations Received
‌
US Patent 11834353 Water treatment system
2
Patent Primary Examiner
‌
Nicole Ippolito
1
Patent abstract

A sterilization device includes a housing having a flow passage R of a fluid that is to be sterilized; and an LED element being disposed in the housing to irradiate ultraviolet light into the flow passage R, wherein an inner wall surface of the flow passage has a pair of reflection surfaces (a first reflection surface and a second reflection surface) which directs the ultraviolet light irradiated from the LED element from one side of the flow passage R to another side thereof while reflecting the ultraviolet light a plurality of times; and a return surface that includes a surface that is perpendicular to an optical axis of the light which has been reflected a plurality of times from one side to the other side, and returns the light toward its original direction is formed on a side of the first reflection surface.

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