Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7018529 | System for producing ultrapure water | Masatake Okumura | 2006-03-28 |
| 6077437 | Device and method for recovering and reusing a polishing agent | Yoshihiro Hayashi, Yukishige Saito, Tsutomu Nakajima, Shin Sato | 2000-06-20 |