Issued Patents 2018
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10153621 | Spark plug | Takuto Nakada | 2018-12-11 |
| 10033163 | Spark plug | Tatsuya Gozawa, Tsutomu Shibata | 2018-07-24 |
| 9948068 | Spark plug | Tsutomu Shibata | 2018-04-17 |
| 9948069 | Spark plug | Masayuki Segawa | 2018-04-17 |
| 9887519 | Spark plug | Kazuki ITO, Tsutomu Shibata | 2018-02-06 |