Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5252399 | Aluminum member provided with weather-resistant coat | Seiji Hirata, Ryouji Iijima | 1993-10-12 |
| 4520864 | Year-round air conditioner with evaporator band and special heater placement | Hidenobu Matsubara, Akio Iida | 1985-06-04 |