Patent Assignment
Reel/Frame 020868/0348
Assignment of Assignor's Interest
Recorded: 2008-04-28
Pages: 4
Assignors
ZHANG, ZHENGANG
Executed: 2008-01-08
TAKEKUMA, IKUKO
Executed: 2007-12-26
TANAHASHI, KIWAMU
Executed: 2007-12-26
Assignee
HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.V.
LOCATELLIKADE 1, PARNASSUSTOREN, 1076 AZ AMSTERDAM, NETHERLANDS
Covered Property
(1)
Perpendicular Magnetic Recording Medium and System Having a Magnetic Recording Layer with a Perpendicular Recording Layer, a Magnetic Coupling Layer, and a Writing Assist Layer
Related Assignments
(4)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Oct 25, 2012
From: HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.V.
To: HGST NETHERLANDS B.V.
Reel/Frame 029341/0777 →
Assignment of Assignor's Interest
Dec 6, 2016
From: HGST NETHERLANDS B.V.
To: WESTERN DIGITAL TECHNOLOGIES, INC.
Reel/Frame 040826/0821 →
Security Interest
Feb 6, 2020
From: WESTERN DIGITAL TECHNOLOGIES, INC.
To: JPMORGAN CHASE BANK, N.A., AS AGENT
Reel/Frame 052915/0566 →
Release of Security Interest at Reel 052915 Frame 0566
Feb 8, 2022
From: JPMORGAN CHASE BANK, N.A.
To: WESTERN DIGITAL TECHNOLOGIES, INC.
Reel/Frame 059127/0001 →