Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11125201 | Ignition control system for internal combustion engine | Kanechiyo Terada | 2021-09-21 |
| 11056858 | Spark plug having a housing with a channel part | Yoshihiro Izumi, Masamichi Shibata, Kanechiyo Terada | 2021-07-06 |
| 10994820 | Connectedly-formed underwater exploration device | Dhugal Lindsay, Masafumi Shimotashiro, Hiroshi Takahashi, Atsushi Arai | 2021-05-04 |
| 10938184 | Spark plug | Yuuki Kawata, Masamichi Shibata, Kanechiyo Terada | 2021-03-02 |
| 10886708 | Spark plug for internal combustion engine | Shintaro Itoh, Daisuke Tanaka, Akimitsu Sugiura, Ryota Wakasugi, Kaori Doi +2 more | 2021-01-05 |