Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6158536 | Stair-climbing vehicle for wheelchair | — | 2000-12-12 |
| 5996767 | Wheelchair transporter for use on an escalator and an escalator control system for transporting the wheelchair transporter on the escalator | — | 1999-12-07 |
| 5797606 | Transporter for patient's emergency escape | — | 1998-08-25 |
| 5676215 | Stair-climbing crawler transporter | — | 1997-10-14 |
| 5197558 | Stair-climbing wheelchair carrier | — | 1993-03-30 |
| 4771839 | Stair-climbing wheelchair carrier | — | 1988-09-20 |
| 4688813 | Carrier for rescuing patients | Kou Takahashi | 1987-08-25 |
| 4681330 | Hand truck | — | 1987-07-21 |
| 4585241 | Carrier for rescuing patients | Kou Takahashi | 1986-04-29 |
| 4566550 | Stair-climbing wheelchair carrier | — | 1986-01-28 |
| 4432426 | Stair climbing wheelchair carrier | — | 1984-02-21 |