Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10418788 | Spark plug | — | 2019-09-17 |
| 10211604 | Spark plug | Yasushi Sakakura | 2019-02-19 |
| 10063037 | Spark plug | Kazuhiko Mori, Kei Takahashi, Hironobu Mizutani | 2018-08-28 |
MT
Masaki Tokumaru
Overall (All Time): #1,463,530 of 4,157,543Top 40%
3
Patents All Time