Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4664024 | Thermally insulated window with ventilation ducts | Akio Ikemura | 1987-05-12 |
| 4646813 | Multimode ventilator | Akio Ikemura | 1987-03-03 |
| 4643246 | Bay window with ventilator | Akio Ikemura | 1987-02-17 |
| 4625628 | Combined wall and ventilator module for a building | Akio Ikemura | 1986-12-02 |
| 4617805 | Air conditioner system for building | Akio Ikemura | 1986-10-21 |
| 4611653 | Ventilation system | Akio Ikemura | 1986-09-16 |
| 4572282 | Ventilation system for building | Akio Ikemura | 1986-02-25 |