Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5994261 | Method of producing activated carbon fiber | Kazuo Tai, Kazuaki Otsuki, Norifumi Shindo, Masaya Hashimoto, Yukihiro Ohtaguro +2 more | 1999-11-30 |
| 4640761 | Process for preparing pitch | Makihiko Mori, Toyohiro Maeda | 1987-02-03 |