Patent Assignment
Reel/Frame 023289/0503
Assignment of Assignor's Interest
Recorded: 2009-09-28
Pages: 4
Assignors
SATO, AKIRA
Executed: 2009-08-25
NAKANO, KAYO
Executed: 2009-08-25
SHIRAKAWA, YASUHIRO
Executed: 2009-08-25
Assignees
KABUSHIKI KAISHA TOSHIBA
1-1, SHIBAURA 1-CHOME, MINATO-KU, TOKYO, 105-8001, JAPAN
TOSHIBA MATERIALS CO., LTD.
8, SHINSUGITA-CHO, ISOGO-KU, YOKOHAMA-SHI, KANAGAWA-KEN, 235-0032, JAPAN
Covered Property
(1)
Method for Producing Tungsten Trioxide Powder for Photocatalyst, Tungsten Trioxide Powder for Photocatalyst, and Photocatalyst Product
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Nunc Pro Tunc Assignment
Feb 19, 2026
From: KABUSHIKI KAISHA TOSHIBA
To: TOSHIBA MATERIALS CO. LTD.
Reel/Frame 074940/0511 →
Change of Name
Feb 19, 2026
From: TOSHIBA MATERIALS CO. LTD.
To: NITERRA MATERIALS CO., LTD.
Reel/Frame 074941/0803 →
Change of Address
Feb 19, 2026
From: KABUSHIKI KAISHA TOSHIBA
To: KABUSHIKI KAISHA TOSHIBA
Reel/Frame 074941/0846 →