Inventor
HAN HYUK HEE
KR27 patents
⚠️ This page may combine multiple inventors who share the name “HAN HYUK HEE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SKC CO LTD
20 patentsUS10703852B2Jul 7, 2020
Isocyanate composition for optical lenses and process for preparing the same
SKC CO LTD2 citations72
US11987541B2May 21, 2024
Method of preparing diisocyanate composition
SKC CO LTD2 citations71
US11964931B2Apr 23, 2024
Method of preparing diisocyanate composition and optical lens
SKC CO LTD2 citations71
US11932591B2Mar 19, 2024
Method of preparing diisocyanate composition and optical lens
SKC CO LTD2 citations71
US11731936B2Aug 22, 2023
Diisocyanate composition, preparation method thereof and optical material using same
SKC CO LTD2 citations71
US11702384B2Jul 18, 2023
Diisocyanate composition for optical lens and preparation method thereof
SKC CO LTD2 citations71
US11634383B2Apr 25, 2023
Method of preparing diisocyanate composition
SKC CO LTD2 citations71
US11518737B2Dec 6, 2022
Method of preparing diisocyanate composition and optical lens
SKC CO LTD2 citations71
US11339121B2May 24, 2022
Method of preparing diisocyanate composition
SKC CO LTD2 citations71
US11155006B2Oct 26, 2021
Method and apparatus for releasing molded article from mold
SKC CO LTD0 citations62
US12049437B2Jul 30, 2024
Diisocyanate composition, preparation method thereof and optical material using same
SKC CO LTD0 citations61
US11958937B2Apr 16, 2024
Polymerizable composition and optical material produced therefrom
SKC CO LTD0 citations61
US11760719B2Sep 19, 2023
Diamine composition, and method of preparing diisocyanate composition
SKC CO LTD0 citations61
US10723697B2Jul 28, 2020
Preparation method of polythiol for optical lenses by using metal sulfide
SKC CO LTD1 citations58
US11673992B2Jun 13, 2023
Isocyanate composition with improved stability and reactivity, and optical lens using same
SKC CO LTD0 citations51
US11572432B2Feb 7, 2023
Polythiourethane-based plastic lens
SKC CO LTD0 citations51
US10723696B2Jul 28, 2020
Xylylene diisocyanate composition with improved stability and reactivity and optical lens using the same
SKC CO LTD0 citations51
US11578038B2Feb 14, 2023
Method for preparing polythiol composition
SKC CO LTD0 citations50
US10435512B2Oct 8, 2019
Polythiol composition for a plastic optical lens
SKC CO LTD0 citations50
US10759895B2Sep 1, 2020
Polymerizable composition for optical material
SKC CO LTD0 citations40
SK PUCORE CO LTD
3 patentsUS12503427B2Dec 23, 2025
Diamine composition, and method of preparing diisocyanate composition
SK PUCORE CO LTD0 citations57
US12421346B2Sep 23, 2025
Polythiol composition, optical composition, and optical product
SK PUCORE CO LTD0 citations54
US12583963B2Mar 24, 2026
Polymerizable composition and optical material using the same
SK PUCORE CO LTD0 citations51