Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10098578 | Alertness device, seat, and method for determining alertness | Shinji Sugiyama, Takayoshi Ito, Kiyoko Yokoyama | 2018-10-16 |
| 9815384 | Wakefulness-maintenance apparatus | Shinji Sugiyama, Toyokazu Nakano, Kiyoko Yokoyama | 2017-11-14 |
| 9693726 | Alertness device, seat, and method for determining alertness | Shinji Sugiyama, Takayoshi Ito, Kiyoko Yokoyama | 2017-07-04 |