Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4772455 | Filter | Kazuo Izumi | 1988-09-20 |
| 4460650 | Acrylonitrile fibers, a process for producing acrylonitrile fibers, as well as producing peroxidized fibers, fibrous active carbon or carbon fibers therefrom | Hiroyasu Ogawa, Kazuo Izumi | 1984-07-17 |