Patent Assignment
Reel/Frame 037555/0751
Assignment of Assignor's Interest
Recorded: 2016-01-22
Pages: 2
Assignors
KISHIDA, KEISUKE
Executed: 2015-09-02
WATANABE, YOSHIHIRO
Executed: 2015-09-02
OKUMURA, YOSHIKUNI
Executed: 2015-09-02
Assignee
SHOWA DENKO K.K.
13-9, SHIBADAIMON 1-CHOME, MINATO-KU, TOKYO, 105-8518, JAPAN
Covered Property
(1)
1, 3-Butadiene Separating Material, and Separation Method Using Said Separating Material
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Jun 23, 2023
From: SHOWA DENKO K.K.
To: RESONAC CORPORATION
Reel/Frame 064082/0513 →
Change of Address
Feb 14, 2024
From: RESONAC CORPORATION
To: RESONAC CORPORATION
Reel/Frame 066599/0037 →
Assignment of Assignor's Interest
Aug 18, 2025
From: RESONAC CORPORATION
To: CRASUS CHEMICAL INC.
Reel/Frame 072044/0367 →