For the Inventor, By the Inventor

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Cheonan-si, South Korea

Luminamask Co., Ltd.

USPTO Granted Patents = 4

Forward Citations = 0

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11 inventors (with patents filed for the assignee):

Sung Hoon Son (4 out of 14 patents)

GeonGon Lee (4 out of 10 patents)

Inkyun Shin (4 out of 12 patents)

4. Min Gyo Jeong (4 out of 11 patents)

5. Seong Yoon Kim (4 out of 11 patents)

6. Hyung-Joo Lee (2 out of 10 patents)

7. Suhyeon Kim (2 out of 12 patents)

8. HaHyeon Cho (2 out of 5 patents)

9. Suk Young Choi (2 out of 9 patents)

10. Taewan Kim (2 out of 3 patents)

11. Tae Young Kim (1 out of 10 patents)

4 patents: Sort by Forward Citations

1. 12724341 - Photomask for extreme ultraviolet (2026-09-01),

2. 12687772 - Shadow mask and method of manufacturing blank mask using the same (2026-07-21),

3. 12650640 - Blank mask and photomask using the same (2026-06-09),

4. 12649854 - Method of preparing laminate and laminate for optical use (2026-06-09),

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USPTO Data Jan 1 1976 - Sep 22 2026

4 Patents

#401 in Cheonan-si

#2,193 in South Korea

Cheonan-si, South Korea

Luminamask Co., Ltd.

Forward Citations = 0

11 inventors:

Sung Hoon Son (4 out of 14 patents)

GeonGon Lee (4 out of 10 patents)

Inkyun Shin (4 out of 12 patents)

4. Min Gyo Jeong (4 out of 11 patents)

5. Seong Yoon Kim (4 out of 11 patents)

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