Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5648558 | Method for producing a polyoxyalkylene glycol and novel metallo-aluminosilicate | Masakatsu Hatano, Akio Nakanishi, Masayuki Shirado, Hiroshi Takeo, Mitsuharu Kobayashi | 1997-07-15 |