Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11459916 | Valve timing adjustment device | Makoto Otsubo, Shuhei Yamamoto, Hiroki Takahashi, Soichi Kinouchi | 2022-10-04 |
| 11441453 | Valve timing adjustment device | Makoto Otsubo, Shuhei Yamamoto, Hiroki Takahashi, Soichi Kinouchi | 2022-09-13 |
| 11339689 | Valve timing adjustment device | Makoto Otsubo, Hiroki Takahashi, Shuhei Yamamoto | 2022-05-24 |
| 10443468 | Fuel addition system | Tetsuro Serai, Takayoshi Kojima, Naoki Toda, Kazuhiro Umemoto, Toshihiro Mori +1 more | 2019-10-15 |
| 8123459 | Impeller, fuel pump having the impeller, and fuel supply unit having the fuel pump | Tadashi Hazama, Eiji Iwanari, Yuuji Nakazu, Hiromi Sakai | 2012-02-28 |
| 8007226 | Fuel pump | Tadashi Hazama, Eiji Iwanari | 2011-08-30 |
| 7546833 | Fuel feed apparatus | Tadashi Hazama, Eiji Iwanari, Ryuji Igarashi, Katsuhisa Yamada | 2009-06-16 |