Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6112455 | Support member for supporting base of tree for use in operation for supporting tree and method of supporting tree by using said support member | — | 2000-09-05 |
| 4751800 | Openable dome-shaped roof structure | Sunao Shotaka, Toshio Adachi, Toru Aoyagi, Shigeki Yamanaka | 1988-06-21 |
| 4727688 | Retractable roof structure | Toru Aoyagi | 1988-03-01 |