Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5440032 | Method for purifying organic solution containing lactams | Kazuhiko Hirosawa, Yasuhiro Kurokawa, Tomohiko Yamamoto, Masaru Matsunishi | 1995-08-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5440032 | Method for purifying organic solution containing lactams | Kazuhiko Hirosawa, Yasuhiro Kurokawa, Tomohiko Yamamoto, Masaru Matsunishi | 1995-08-08 |