Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4712003 | Blind person guide device | Itsuki Ban | 1987-12-08 |
| 4648710 | Blind guide device | Itsuki Ban, Toshiyuki Kii | 1987-03-10 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4712003 | Blind person guide device | Itsuki Ban | 1987-12-08 |
| 4648710 | Blind guide device | Itsuki Ban, Toshiyuki Kii | 1987-03-10 |