Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6433166 | Process for producing &egr;-caprolactam | Yasumoto Shimazu, Hiroyuki Umida | 2002-08-13 |
| 6344557 | Process for producing &egr;-caprolactam | Kan Takamine, Tomokazu Nakamura | 2002-02-05 |