Issued Patents 2019
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10443647 | Power transmission shaft | Taku Itagaki, Tomoshige Kobayashi, Takeyoshi Konomoto, Minoru Ishijima | 2019-10-15 |
| 10352365 | Power transmission shaft and spline-processing method | Tsuneaki Hiraoka, Yuichiro Kitamura, Kiyohiro Suzuki | 2019-07-16 |