Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4466812 | Zeolite encapsulating material | Tetsuo Takaishi, Keiji Itabashi, Satoru Morishita | 1984-08-21 |
| 4461631 | Zeolite encapsulating material | Keiji Itabashi, Satoru Morishita | 1984-07-24 |