​Sang-Hoon Kim`s Wave Science Lab

[1] Patent No: US 9,327,812

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Title: Silence duct for ship’s propeller using resonant barrels

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Patent Registration Date: May 03, 2016. 

 

Inventor: Sang-Hoon Kim

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[2] Patent No: JP 6208754

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Title: Silencer duct for ship’s propeller using resonant barrels

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Patent Registration Date: September 15, 2017.

 

Inventor: Sang-Hoon Kim

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[3] Patent No: JP 6246900 

 

Title: Soundproof wall which has overlapped resonant chambers around air or water passage that makes air or water pass freely

 

Patent Registration Date: November 24th, 2017

 

Patent filing date: November 22nd, 2013

 

Inventor: Sang-Hoon Kim