Patent Assignment
Reel/Frame 025557/0031
Assignment of Assignor's Interest
Recorded: 2010-12-30
Pages: 3
Assignor
NAM, SANG WOO
Executed: 2010-12-29
Assignee
DONGBU HITEK CO., LTD.
891-10 DAECHI-DONG, GANGNAM-GU, SEOUL, 135-280, KOREA, REPUBLIC OF
Covered Property
(1)
Semiconductor Memory Device, Method of Manufacturing the Same, and Cell Array of Semiconductor Memory Device
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Nov 30, 2017
From: DONGBU HITEK CO., LTD.
To: DB HITEK CO., LTD.
Reel/Frame 044559/0819 →
Assignment of Assignor's Interest
Jul 10, 2019
From: DB HITEK CO., LTD.
To: COLUMBA TECHNOLOGIES INC.
Reel/Frame 049709/0857 →
Assignment of Assignor's Interest
Jun 5, 2020
From: COLUMBA TECHNOLOGIES, INC.
To: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
Reel/Frame 052845/0474 →