Patent Assignment
Reel/Frame 005945/0206
Change of Name
Recorded: 1991-12-12
Pages: 5
Assignor
JAPAN SILICON CO., LTD.
Executed: 1991-11-22
Assignee
MITSUBISHI MATERIALS SILICON CORPORATION
8-16, IWAMOTO-CHO 3-CHOME, CHIYODA-KU, TOKYO, JAPAN
Covered Properties
(6)
Apparatus for Dressing Cutting Edge
Patent:
4,699,118 →
Application:
06/841,094 →
Polishing Apparatus
Patent:
4,897,966 →
Application:
07/087,167 →
Method and Apparatus for Application of Wax on Wafers
Patent:
4,851,263 →
Application:
07/111,540 →
Method for Contactless Evaluation of Characteristics of Semiconductor Wafers and Devices
Patent:
4,949,034 →
Application:
07/322,390 →
Method for Polishing a Silicon Wafer Using a Ceramic Polishing Surface Having a Maximum Surface Roughness Less Than 0.02 Microns
Patent:
5,096,854 →
Application:
07/367,637 →
Silicon Wafer
Application:
07/688,321 →
Related Assignments
(6)
Other recorded transfers of the patents in this record — the chain of ownership.
Assignment of Assignors Interest.
Mar 18, 1986
From: TSURUTA, SHOJI; MINAMI, HIDEAKI; OHHATA, YOSHINORI; SAKAI, SHINSUKE
To: MITSUBISHI KINZOKU KABUSHIKI KAISHA; JAPAN SILICON CO., LTD.
Reel/Frame 004542/0576 →
Assignment of Assignors Interest.
Dec 23, 1987
From: ISHII, KEIICHI; TSUTSUMI, YUKIO; SAEKI, KAZUNORI; KOYAMA, MITSUJI
To: MITSUBISHI KINZOKU KABUSHIKI KAISHA; JAPAN SILICON CO., LTD.
Reel/Frame 004825/0802 →
Assignment of Assignors Interest.
Apr 21, 1989
From: IMURA, MAKOTO; USAMI, AKIRA
To: MITSUBISHI KINZOKU KABUSHIKI KAISHAO; JAPAN SILICON CO., LTD.
Reel/Frame 005081/0817 →
Assignment of Assignors Interest.
Aug 4, 1989
From: SAITO, YUICHI; SHINSUKE, SAKAI; HAYASHI, HISAO; MATSUSHITA, TAKESHI
To: JAPAN SILICON CO., LTD; SONY CORPORATION
Reel/Frame 005112/0927 →
Assignment of Assignors Interest.
Apr 22, 1991
From: SAITO, YUICHI; KAWAI, KENICHI
To: MITSUBISHI MATERIALS CORPORATION, 6-1, OTEMACHI 1-CHOME, CHIYODA-KU, TOKYO, JAPAN; JAPAN SILICON CO., LTD., 8-16, IWAMOTO-CHO, 3-CHOME, CHIYODA-KU, TOKYO, JAPAN
Reel/Frame 005683/0503 →
Document Is Being Recorded as a Change of Name and a Change of Address. Change of Name Effective 12-01-90 and Change of Address Effective 11-28-88.
Aug 9, 1991
From: MITSUBISHI KINZOKU KABUSHIKI KAISHA 5-2, OTEMACHI 1-CHOME, CHIYODA-KU TOKYO
To: MITSUBISHI MATERIALS CORPORATION
Reel/Frame 005810/0070 →