Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5693830 | Process for preparing the spiropyrone compounds | Junji Momoda, Takashi Kobayakawa | 1997-12-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5693830 | Process for preparing the spiropyrone compounds | Junji Momoda, Takashi Kobayakawa | 1997-12-02 |