Issued Patents 2020
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10763646 | Spark plug | — | 2020-09-01 |
| 10663076 | Electric actuator and method of manufacturing the same | Tetsuji Yamanaka, Naoaki Kouno, Etsugo Yanagida | 2020-05-26 |
| 10591079 | Electric actuator and manufacturing method for same | Tetsuji Yamanaka, Naoaki Kouno, Etsugo Yanagida | 2020-03-17 |