Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10995681 | Combustion control device for engine | Masanari Sueoka, Hideki Omori, Keiji Maruyama, Tatsuhiro Tokunaga, Takuya Ohura +6 more | 2021-05-04 |
| 10927749 | Engine control device | Tatsuhiro Tokunaga, Masanari Sueoka, Keiji Maruyama, Tomohiro Nishida, Takuya Ohura +4 more | 2021-02-23 |