Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10622789 | Spark plug | — | 2020-04-14 |
| 10128638 | Ignition plug | Tomoki Kawai | 2018-11-13 |
RY
Ryoki Yagi
Overall (All Time): #1,904,836 of 4,157,543Top 50%
2
Patents All Time