Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11276310 | Information providing device for providing various types of information using information presentation sounds | Ikuyo Ohsugi | 2022-03-15 |
| 11114084 | Resonance tube of horn | Ikuyo Ohsugi, Masaaki Sakiyama | 2021-09-07 |
| 10166816 | Sound source device of horn | Ikuyo Ohsugi, Noriyuki Nabeshima | 2019-01-01 |