Inventor

LEE CHANG-SEOB

KR6 patents

⚠️ This page may combine multiple inventors who share the name “LEE CHANG-SEOB”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HJC CO LTD

2 patents

US7398561B2Jul 15, 2008

Device for opening-closing jaw guard of helmet

HJC CO LTD28 citations89

US7540033B2Jun 2, 2009

Device for opening-closing sun visor of helmet

HJC CO LTD7 citations70

HJC CORP

2 patents

US8341771B2Jan 1, 2013

Opening/closing apparatus and helmet including the same

HJC CORP12 citations81

US12575632B2Mar 17, 2026

Head protection gear

HJC CORP0 citations47

LEE CHANG-SEOB

1 patent

US8166577B2May 1, 2012

Helmet having rotatable shield

LEE CHANG-SEOB15 citations77

AHN JOONG KOO

1 patent

US9801425B2Oct 31, 2017

Helmet shield including ventilation unit

AHN JOONG KOO9 citations76