Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10789934 | Active noise reduction device and active noise reduction method | Tomofumi Yamanashi | 2020-09-29 |
| 10549688 | Fake engine sound control device and fake engine sound control method | Tomofumi Yamanashi | 2020-02-04 |