Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4633900 | Constant airflow control apparatus for air conditioning | — | 1987-01-06 |
| 4553696 | Air conditioning apparatus | Isamu Ichikawa, Yutaka Fukushi, Keiji Kamata | 1985-11-19 |
| 4449664 | Air quantity regulating apparatus for air conditioning | Kuniaki Mithuhira, Keiji Kamata | 1984-05-22 |
| 4406397 | Central air conditioning equipment | Keiji Kamata, Yutaka Fukushi | 1983-09-27 |