Issued Patents 2020
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10867019 | Personal authentication device, personal authentication method, and personal authentication program using acoustic signal propagation | Takayuki Arakawa, Takafumi Koshinaka, Hitoshi Imaoka, Hideki Irisawa | 2020-12-15 |