Issued Patents 2020
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10855057 | Spark plug for internal combustion engine | Fumiaki Aoki, Daisuke Tanaka, Akimitsu Sugiura, Tetsuya Miwa, Kanechiyo Terada | 2020-12-01 |
| 10811850 | Spark plug of internal combustion engine | Yuuki Kawata, Fumiaki Aoki, Daisuke Tanaka, Kanechiyo Terada, Tetsuya Miwa +1 more | 2020-10-20 |
| 10720760 | Spark plug for internal combustion engine | Yuuki Kawata, Fumiaki Aoki, Daisuke Tanaka, Akimitsu Sugiura, Kanechiyo Terada +1 more | 2020-07-21 |
| 10641230 | Ignition apparatus of internal combustion engine | Akimitsu Sugiura | 2020-05-05 |