Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5932104 | Filtration membrane for oleophilic organic liquids, method for producing it, and method for filtering oleophilic organic liquids | — | 1999-08-03 |
| 4900459 | Metal processing lubricating oil composition and process for producing the same | Toshihide Ohmori, Kazuhiko Kitamura, Atsushi Danno, Tokuo Shirai, Yukio Sugiura +1 more | 1990-02-13 |