Issued Patents 2022
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11493402 | Pressure sensor for evaporated fuel leak detector | Ryoyuu Kishi, Yasuo Katoh | 2022-11-08 |
| 11480492 | Pressure sensor for evaporated fuel leak detector | Ryoyuu Kishi, Yasuo Katoh | 2022-10-25 |
| 11435259 | Pressure sensor for evaporated fuel leak detector | Ryoyuu Kishi, Yasuo Katoh | 2022-09-06 |
| 11428222 | Vane pump | Keiichirou Ishihara, Yasuo Katoh | 2022-08-30 |
| 11428601 | Pressure sensor for evaporated fuel leak detector | Ryoyuu Kishi, Yasuo Katoh | 2022-08-30 |