Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10267189 | Variable valve actuation device for internal combustion engine | Yukio Konishi, Chikara Tanaka | 2019-04-23 |
| 10132207 | Variable valve mechanism for internal combustion engine | Masaru Izawa | 2018-11-20 |
| 10066518 | Variable valve mechanism for internal combustion engine | Chikara Tanaka | 2018-09-04 |