Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11929083 | Signal processing device, sound-reproduction system, and sound reproduction method for enhancing attractiveness or recognition of a sound, such as an engine sound | Kanro Oyama | 2024-03-12 |
| 10909966 | Active noise reduction device and active noise reduction method | Tomofumi Yamanashi | 2021-02-02 |
| 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 |