Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7094133 | Retainer and wafer polishing apparatus | Takayuki Masunaga | 2006-08-22 |
| 6976908 | Polishing head and polishing apparatus | Takayuki Masunaga, Hiromichi Isogai, Katsuyoshi Kojima | 2005-12-20 |