Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6824447 | Perforated-transparent polishing pad | Hajime Shimizu | 2004-11-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6824447 | Perforated-transparent polishing pad | Hajime Shimizu | 2004-11-30 |