Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5306392 | Process for preparing pulp using potassium-based alkaline solution | — | 1994-04-26 |
| 4851082 | Pulping process | Akio Dobashi, Susumu Kashiwabara | 1989-07-25 |
| 4495082 | Water-absorbent | Susumu Kashiwabara | 1985-01-22 |