Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9826310 | Loudspeaker device and wireless communication system | Kinichi Higure, Noriyuki Takahashi | 2017-11-21 |
| 4946140 | System for automatically feeding chemical liquids to cooling towers | — | 1990-08-07 |