Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5220098 | Process for separating 2, 7-dimethylnaphthalene under pressure | Shinji Aihara, Yutaka Mito, Masami Takao, Hitoshi Hatakeyama | 1993-06-15 |
| 4459842 | Roll wear testing method and apparatus therefor | Junji Kihara, Keiji Watabe, Kouichi Douya, Shouzo Takeuchi | 1984-07-17 |