Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11492231 | Elevator apparatus | Rikio Kondo, Masahiko Hida | 2022-11-08 |
| 5718309 | Rotary damper with grooves and wall spaces | — | 1998-02-17 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11492231 | Elevator apparatus | Rikio Kondo, Masahiko Hida | 2022-11-08 |
| 5718309 | Rotary damper with grooves and wall spaces | — | 1998-02-17 |