Patent Assignment
Reel/Frame 064276/0151
Change of Name
Recorded: 2023-07-14
Pages: 4
Assignor
YOUNG CHANG CHEMICAL CO., LTD
Executed: 2023-03-24
Assignee
YCCHEM CO., LTD.
174-12 YUSEORI-GIL, SEONNAM-MYEON, SEONGJU-GUN, GYEONGSANGBUK-DO, KOREA, REPUBLIC OF
Covered Properties
(22)
Photoresist Coating Composition and Method for Forming Fine Pattern Using the Same
Coating Composition for Preventing Collapse of Capacitor
Cleaning Composition for Photolithography and Method of Forming Photoresist Pattern Using the Same
Negative Photoresist Composition for Krf Laser for Forming Semiconductor Patterns
I-Line Negative Type Photoresist Composition Having Excellent Etching Resistance
Slurry Composition for Cmp and Polishing Method Using Same
Anti-Reflection Coating Composition and Anti-Reflection Film Utilizing Same
Negative Photoresist Composition for Krf Laser, Having High Resolution and High Aspect Ratio
Chemically-Amplified-Type Negative-Type Photoresist Composition
Method and Composition for Improving Lwr in Patterning Step Using Negative Tone Photoresist
Method and Composition for Improving Lwr in Patterning Step Using Negative Tone Photoresist
Photoresist Pattern Shrinking Composition and Pattern Shrinking Method
High Etch Resistance Spin-on Carbon Hard Mask Composition and Patterning Method Using Same
Composition for Performing Cleaning After Chemical/ Mechanical Polishing
Euv Developer Composition for Forming Photosensitive Photoresist Micropattern
Cutting Oil Composition
Developer Composition, for Euv Light Source, for Forming Photosensitive Photoresist Micropattern
Novel Etching Method for Forming Micro Silicon Pattern in Semiconductor Manufacturing Process
Process Solution Composition for Extreme Ultraviolet Lithography, and Method for Forming Pattern by Using Same
Process Liquid for Extreme Ultraviolet Lithography and Pattern Forming Method Using Same
Novel Method for Forming Silicon or Silicon Compound Pattern in Semiconductor Manufacturing Process
Etching Composition for Silicon Nitride Film
Related Assignments
(19)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignor's Interest
Dec 8, 2005
From: LEE, GEUN SU; MOON, SEUNG CHAN; LEE, SEUNG HUN
To: HYNIX SEMICONDUCTOR INC.; YOUNGCHANG CHEMICAL CO., LTD.
Reel/Frame 017356/0618 →
Assignment of Assignor's Interest
May 4, 2015
From: LEE, SU JIN; KIM, GI HONG; LEE, SEUNG HOON
To: YOUNG CHANG CHEMICAL CO., LTD
Reel/Frame 035556/0331 →
Assignment of Assignor's Interest
Jun 14, 2016
From: LEE, SEUNG HUN; LEE, SEUNG HYUN; YOON, SANG WOONG; HAM, GYEONG GUK
To: YOUNG CHANG CHEMICAL CO., LTD.
Reel/Frame 038991/0861 →
Assignment of Assignor's Interest
Jan 12, 2018
From: LEE, SEUNG HUN; LEE, SEUNG HYUN; YOON, SANG WOONG; LEE, SU JIN
To: YOUNG CHANG CHEMICAL CO., LTD
Reel/Frame 044613/0558 →
Assignment of Assignor's Interest
Feb 20, 2018
From: LEE, SEUNG HUN; LEE, SEUNG HYUN; YOON, SANG WOONG; CHOI, YOUNG CHEOL
To: YOUNG CHANG CHEMICAL CO., LTD
Reel/Frame 044977/0543 →
Assignment of Assignor's Interest
Mar 23, 2018
From: LEE, SEUNG HUN; LEE, SEUNG HYUN; LEE, SU JIN; KIM, SEONG HWAN
To: YOUNG CHANG CHEMICAL CO., LTD.; SKC CO., LTD.
Reel/Frame 045690/0287 →
Assignment of Assignor's Interest
Jul 17, 2018
From: LEE, SEUNG HUN; LEE, SEUNG HYUN; HAM, GYEONG GUK
To: YOUNG CHANG CHEMICAL CO., LTD.
Reel/Frame 046559/0982 →
Assignment of Assignor's Interest
Sep 19, 2018
From: LEE, SEUNG HUN; LEE, SEUNG HYUN; LEE, SU JIN; CHOI, YOUNG CHEOL
To: YOUNG CHANG CHEMICAL CO., LTD
Reel/Frame 046913/0569 →
Assignment of Assignor's Interest
Nov 2, 2018
From: LEE, SU JIN; KIM, GI HONG; LEE, SEUNG HUN; LEE, SEUNG HYUN
To: YOUNG CHANG CHEMICAL CO., LTD
Reel/Frame 047413/0092 →
Assignment of Assignor's Interest
Nov 2, 2018
From: LEE, SEUNG HUN; LEE, SEUNG HYUN; LEE, SU JIN; CHOI, YOUNG CHEOL
To: YOUNG CHANG CHEMICAL CO., LTD
Reel/Frame 047406/0113 →
Assignment of Assignor's Interest
Nov 2, 2018
From: LEE, SU JIN; KIM, GI HONG; LEE, SEUNG HUN; LEE, SEUNG HYUN
To: YOUNG CHANG CHEMICAL CO., LTD
Reel/Frame 047413/0029 →
Assignment of Assignor's Interest
Nov 21, 2018
From: LEE, SEUNG HUN; LEE, SEUNG HYUN; LEE, SU JIN; KIM, GI HONG
To: YOUNG CHANG CHEMICAL CO., LTD.
Reel/Frame 048147/0135 →
Assignment of Assignor's Interest
Apr 11, 2019
From: KIM, GI HONG; LEE, SU JIN; LEE, SEUNG HYUN; LEE, SEUNG HUN
To: YOUNG CHANG CHEMICAL CO., LTD.
Reel/Frame 048873/0275 →
Assignment of Assignor's Interest
Aug 27, 2019
From: LEE, SEUNG HUN; LEE, SEUNG HYUN; KIM, SEONG HWAN
To: YOUNG CHANG CHEMICAL CO., LTD
Reel/Frame 050188/0596 →
Assignment of Assignor's Interest
Sep 10, 2019
From: LEE, SU JIN; KIM, GI HONG; LEE, SEUNG HUN; LEE, SEUNG HYUN
To: YOUNG CHANG CHEMICAL CO., LTD
Reel/Frame 050327/0449 →
Assignment of Assignor's Interest
Oct 30, 2019
From: LEE, SEUNG HUN; LEE, SEUNG HYUN; KIM, SEONG HWAN; HAM, GYEONG GUK
To: YOUNG CHANG CHEMICAL CO., LTD
Reel/Frame 050868/0074 →
Assignment of Assignor's Interest
Jul 10, 2020
From: LEE, SU JIN; KIM, GI HONG; LEE, SEUNG HUN
To: YOUNG CHANG CHEMICAL CO., LTD
Reel/Frame 053174/0602 →
Change of Address
Jul 14, 2023
From: YOUNG CHANG CHEMICAL CO., LTD
To: YOUNG CHANG CHEMICAL CO., LTD
Reel/Frame 064274/0654 →
Assignment of Assignor's Interest
Mar 6, 2026
From: SKC CO., LTD.
To: YCCHEM CO., LTD.
Reel/Frame 073990/0445 →