Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |