Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12366221 | Fuel injection system | Akira Tamura, Hiroki Oso, Naotaro Nagai, Masanari TENNOMI | 2025-07-22 |
| 12012909 | Injector control device | Yasushi Kobayashi, Kiichi Suehiro, Naotaro Nagai | 2024-06-18 |
| 11781501 | Engine head structure | Akira Tamura, Kensuke Fujita, Hiroki Oso, Yasushi Kobayashi, Mitsugu Okuda | 2023-10-10 |
| 11261780 | Engine equipped with supercharger | Hiroki Oso, Nobuyoshi Okada, Yoshinori Tanaka, Ayako Sakurai | 2022-03-01 |