Patent Assignment
Reel/Frame 010358/0005
Assignment of Assignor's Interest
Recorded: 1999-11-04
Pages: 2
Assignee
MITSUBISHI MATERIALS SILICON CORPORATION AND MITSUBISHI MATERIALS CORPORATION
5-1, OHTEMACHI 1-CHOME, CHIYODA-KU, TOKYO, JAPAN
Covered Property
(1)
Treatment Method of Semiconductor Substrate
Patent:
6,146,467 →
Application:
09/384,143 →
Related Assignments
(3)
Other recorded transfers of the patent in this record — the chain of ownership.
Change of Name
Apr 5, 2011
From: MITSUBISHI MATERIALS SILICON CORPORATION
To: SUMITOMO MITSUBISHI SILICON CORPORATION
Reel/Frame 026074/0552 →
Change of Name
Apr 7, 2011
From: SUMITOMO MITSUBISHI SILICON CORPORATION
To: SUMCO CORPORATION
Reel/Frame 026100/0718 →
Assignment of Assignor's Interest
Oct 5, 2011
From: MITSUBISHE MATERIALS CORPORATION
To: SUMCO CORPORATION
Reel/Frame 027021/0207 →