Patent Assignment
Reel/Frame 007211/0011
Assignment of Assignor's Interest
Recorded: 1994-11-10
Pages: 4
Assignors
SHIMIZU, YASUO
Executed: 1994-05-18
NAKAHARA, HIROHIKO
Executed: 1994-05-18
AOKI, TOMOKO
Executed: 1994-05-18
FUNAYAMA, OSAMU
Executed: 1994-05-18
ISODA, TAKESHI
Executed: 1994-05-18
Assignee
TONEN CORPORATION
1-1, HITOTSUBASHI 1-CHOME, CHIYODA-KU, TOKYO, JAPAN
Covered Property
(1)
Polymetalosilazane, Process of Producing Same, Silicon Nitride Based Ceramic, and Process of Preparing Same
Patent:
5,436,398 →
Application:
08/223,866 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Merger
Dec 14, 2001
From: TONEN CORPORATION
To: TONENGENERAL SEKIYU KABUSHIKI KAISHA
Reel/Frame 012365/0287 →
Assignment of Assignor's Interest
Oct 20, 2003
From: TONENGENERAL SEKIYU K.K.
To: CLARIANT INTERNATIONAL, LTD.
Reel/Frame 014609/0431 →
Assignment of Assignor's Interest
Mar 17, 2005
From: CLARIANT INTERNATIONAL LTD
To: AZ ELECTRONIC MATERIALS USA CORP.
Reel/Frame 015788/0438 →