Issued Patents 2025
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12308619 | Noble metal tip for spark plug, electrode for spark plug, and spark plug | Tomoo Tanaka, Kengo Hattori | 2025-05-20 |
| 12251923 | Joined body, holding device, and electrostatic chuck | Ryuichi Arakawa, Tomoo Tanaka | 2025-03-18 |