Issued Patents 2025
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12407148 | Spark plug | Kaito Nakamura, Daisuke Sumoyama, Takaaki Kikai | 2025-09-02 |
| 12308619 | Noble metal tip for spark plug, electrode for spark plug, and spark plug | Osamu Yoshimoto, Tomoo Tanaka | 2025-05-20 |