Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5924656 | Thermal insulating supporting device for piping | Akira Okada, Toshikazu Nakamura, Satoshi Hama | 1999-07-20 |
| 5749548 | Thermal insulating support device for piping | Kouji Tamura, Akira Okada, Kenji Matsumura, Satoshi Hama | 1998-05-12 |