Gyeong Guk HAM

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Daegu, KR

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Patents Grantslast 30 patents

Information Patent Grant
Cutting oil composition
- Patent number 11,001,780
- Issue date May 11, 2021
- YOUNG CHANG CHEMICAL CO., LTD
- Seung Hun Lee
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Anti-reflection coating composition and anti-reflection film utiliz...
- Patent number 10,717,878
- Issue date Jul 21, 2020
- YOUNG CHANG CHEMICAL CO., LTD
- Seung Hun Lee
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Cleaning composition for photolithography and method of forming pho...
- Patent number 9,829,797
- Issue date Nov 28, 2017
- YOUNG CHANG CHEMICAL CO., LTD
- Seung Hun Lee
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
CUTTING OIL COMPOSITION
- Publication number 20200190423
- Publication date Jun 18, 2020
- YOUNG CHANG CHEMICAL CO., LTD
- Seung Hun LEE
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
ANTI-REFLECTION COATING COMPOSITION AND ANTI-REFLECTION FILM UTILIZ...
- Publication number 20180319994
- Publication date Nov 8, 2018
- YOUNG CHANG CHEMICAL CO., LTD
- Seung Hun LEE
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
CLEANING COMPOSITION FOR PHOTOLITHOGRAPHY AND METHOD OF FORMING PHO...
- Publication number 20170017161
- Publication date Jan 19, 2017
- YOUNG CHANG CHEMICAL CO., LTD.
- Seung Hun LEE
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...