Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5607621 | Phosphorescent synthetic resin material method for production thereof, and formed article | Kiyomitsu Ishihara, Takayuki Yonetani, Yoshiharu Yamaguchi | 1997-03-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5607621 | Phosphorescent synthetic resin material method for production thereof, and formed article | Kiyomitsu Ishihara, Takayuki Yonetani, Yoshiharu Yamaguchi | 1997-03-04 |