Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4443726 | Brushes and method for the production thereof | Takashi Ohsaki | 1984-04-17 |
| 4412937 | Method for manufacture of activated carbon fiber | Minoru Hirai, Kazuo Izumi, Kenji Shimazaki | 1983-11-01 |
| 4366085 | Fibrous activated carbon with metal chelate compound supported thereon, process for producing the same | Yoshihumi Kawakatsu, Minoru Hirai, Kazuo Izumi | 1982-12-28 |
| 4362646 | Process for the production of fibrous activated carbon | Minoru Hirai, Kazuo Izumi | 1982-12-07 |