Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10413896 | Ion exchange membrane | Atsushi Nakajima, Yoshifumi KADO, Naoki Sakamoto | 2019-09-17 |
| 7384612 | Diesel exhaust gas purifying filter | Shigeru Kumai, Yoshitaka Kumai | 2008-06-10 |
| 4439092 | Apparatus for unloading workpiece from press | — | 1984-03-27 |