Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8298437 | Alkali etching liquid for silicon wafer and etching method using same | Makoto Takemura, Yasuyuki Hashimoto | 2012-10-30 |
| 7618897 | Alkali etching liquid for silicon wafer and etching method using same | Makoto Takemura, Yasuyuki Hashimoto | 2009-11-17 |