Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12041982 | Protective clothing for exercise | Katsushige Yokoyama | 2024-07-23 |
| 10939710 | Protective clothing for exercise | Katsushige Yokoyama | 2021-03-09 |
| 4202297 | Two-stroke engine having variable exhaust port timing | Yasuharu Tsuyama | 1980-05-13 |