JunYoul CHOI

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Seoul, KR

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Patents Grantslast 30 patents

Information Patent Grant
Method of forming photomask
- Patent number 9,766,540
- Issue date Sep 19, 2017
- Samsung Electronics Co., Ltd.
- Jong Keun Oh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photomask and method of forming the same
- Patent number 9,223,199
- Issue date Dec 29, 2015
- Samsung Electronics Co., Ltd.
- Jong Keun Oh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
CLEANING COMPOSITION AND METHOD OF CLEANING MASK BY USING THE SAME
- Publication number 20240288785
- Publication date Aug 29, 2024
- Samsung Electronics Co., Ltd.
- Jungah KIM
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
METHOD OF FORMING PHOTOMASK
- Publication number 20160124301
- Publication date May 5, 2016
- Jong Keun OH
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PHOTOMASK AND METHOD OF FORMING THE SAME
- Publication number 20140113221
- Publication date Apr 24, 2014
- Jong Keun OH
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY