Issued Patents 2023
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11710947 | Spark plug for internal combustion engine | Keisuke Sugita, Shota Kinoshita, Akimitsu Sugiura | 2023-07-25 |
| 11705696 | Spark plug for internal combustion engine | — | 2023-07-18 |
| 11664645 | Internal combustion engine and spark plug | Kaori Doi, Akimitsu Sugiura, Syuhei Nakashima, Kyosuke Fujita | 2023-05-30 |