Issued Patents 2017
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9825432 | Spark plug for internal combustion engine and production method thereof | Masataka Deguchi, Tetsuya Miwa, Yuuki Tsukamoto | 2017-11-21 |
| 9806499 | Spark plug for internal combustion engine | — | 2017-10-31 |
| 9793687 | Spark plug for internal combustion engine, having an annular ground electrode facing an outer circumference of a center electrode | Masataka Deguchi, Masamichi Shibata, Tetsuya Miwa, Hironori Osamura, Yuuki Tsukamoto | 2017-10-17 |
| 9771918 | Ignition system | Satoru Nakayama, Makoto Toriyama, Akimitsu Sugiura, Masahiro Ishitani, Yuuki Kondou | 2017-09-26 |
| 9685893 | Alternating current generation system accompanying power conversion | Yasuhiro Fuwa, Osamu Naitou, Kouichi Nagata, Masaaki Ohno | 2017-06-20 |