Issued Patents 2022
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11441608 | Sintered bearing for motor-type fuel pump and production method therefor | Tsuneo Maruyama | 2022-09-13 |
| 11353063 | Sintered bearing | Tsuneo Maruyama | 2022-06-07 |
| 11248654 | Oil impregnated sintered bearing and production method thereof | Hajime Kouno, Tsuneo Maruyama, Jyun Katou, Kenji Orito | 2022-02-15 |