Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5267814 | Mechanism and method for continuously constructing reinforced concrete tunnel | — | 1993-12-07 |
| 5039162 | Chair serving as a safety device | — | 1991-08-13 |
| 5012644 | Automatic speed changing apparatus | — | 1991-05-07 |
| 4821984 | Safety chamber for an airplane | — | 1989-04-18 |
| 4616519 | Magnetically operated power transmission apparatus | — | 1986-10-14 |
| 4505164 | Automatic transmission mechanism with spindle-shaped frictional clutch members incorporated therein | — | 1985-03-19 |