Issued Patents 2018
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10033163 | Spark plug | Daisuke Sumoyama, Tatsuya Gozawa | 2018-07-24 |
| 9948068 | Spark plug | Daisuke Sumoyama | 2018-04-17 |
| 9887519 | Spark plug | Kazuki ITO, Daisuke Sumoyama | 2018-02-06 |
TS
Tsutomu Shibata
Overall (2018): #53,547 of 503,207Top 15%
3
Patents 2018