Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5667725 | Sol and fine powder of sodium magnesium fluoride and processes for their production | Yoshitane Watanabe, Keitaro Suzuki, Motoko Iijima | 1997-09-16 |
| 5635587 | Process for manufacturing polyarylene sulfide | Norio Ogata, Hiroshi Nishitani | 1997-06-03 |