Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5647792 | Polishing apparatus | Seiji Katsuoka, Tetsuji Togawa | 1997-07-15 |
| 5643067 | Dressing apparatus and method | Seiji Katsuoka, Tetsuji Togawa | 1997-07-01 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5647792 | Polishing apparatus | Seiji Katsuoka, Tetsuji Togawa | 1997-07-15 |
| 5643067 | Dressing apparatus and method | Seiji Katsuoka, Tetsuji Togawa | 1997-07-01 |