Patent Assignment Abstract of Title
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For pending or abandoned applications please consult USPTO staff.
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Total Assignments:
2
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Patent #:
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Issue Dt:
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03/17/1992
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Application #:
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07367637
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Filing Dt:
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06/19/1989
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Inventors:
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YUICHI SAITO, SHINSUKE SAKAI, HISAO HAYASHI, TAKESHI MATSUSHITA
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Title:
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METHOD FOR POLISHING A SILICON WAFER USING A CERAMIC POLISHING SURFACE HAVING A MAXIMUM SURFACE ROUGHNESS LESS THAN 0.02 MICRONS
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Assignment:
1
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ASSIGNMENT OF ASSIGNORS INTEREST.
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| 8-16, IWAMOTO-CHO, 3-CHOME, CHIYODA-KU |
| TOKYO, JAPAN |
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| 7-35, KITASHINAGAWA 6-CHOME, SHINAGAWA-KU |
| TOKYO, JAPAN |
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| CUSHMAN, DARBY & CUSHMAN |
| 1615 L STREET, N. W., 11TH FLR. |
| WASHINGTON, DC 20036-5601 |
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Assignment:
2
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CHANGE OF NAME (SEE DOCUMENT FOR DETAILS).
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| 8-16, IWAMOTO-CHO 3-CHOME, CHIYODA-KU |
| TOKYO, JAPAN |
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| CUSHMAN, DARBY & CUSHMAN |
| 11TH FLR., |
| 1615 L STREET, N. W. |
| WASHINGTON, DC 20036 |
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