Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10947877 | Exhaust gas purification filter | Mikio Ishihara, Akira Miyashita, Hironori Niwa | 2021-03-16 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10947877 | Exhaust gas purification filter | Mikio Ishihara, Akira Miyashita, Hironori Niwa | 2021-03-16 |