Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7976599 | Clean bench and method of producing raw material for single crystal silicon | Kazuhiro Sakai | 2011-07-12 |
| 7905963 | Apparatus and method for washing polycrystalline silicon | Kazuhiro Sakai, Tetsuya Atsumi | 2011-03-15 |