Patent Assignment
Reel/Frame 007231/0324
Assignment of Assignor's Interest
Recorded: 1994-09-19
Pages: 3
Assignor
SAKAI, SHINSUKE
Executed: 1994-08-18
Assignees
MITSUBISHI MATERIALS SILICON CORPORATION
8-16, IWAMOTO-CHO 3-CHOME, CHIYODA-KU, TOKYO,, JAPAN
MITSUBISHI MATERIALS CORPORATION
5-1, OHTEMACHI 1-CHOME, CHIYODA-KU, TOKYO,, JAPAN
Covered Property
(1)
Process for Production of Semiconductor Substrate
Patent:
5,459,104 →
Application:
08/307,620 →
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 →