Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4784580 | Airflow control system | Kohji Kurita | 1988-11-15 |
| 4770340 | Boiler air flow controlling apparatus | — | 1988-09-13 |
| 4720245 | Flow rate control system in fluid supply and drain apparatus | Sachio Nakashima | 1988-01-19 |
| 4691156 | Variable frequency power unit controlling system | — | 1987-09-01 |
| 4651072 | Variable frequency power source operating system | — | 1987-03-17 |
| 4644242 | Controlling system for a pole change electric motor | Kohji Kurita | 1987-02-17 |
| 4637296 | Air flow controlling apparatus | Yoshihiko Hirosaki | 1987-01-20 |
| 4589046 | Apparatus for detecting ground fault in variable-voltage variable-frequency power system | — | 1986-05-13 |
| 4589048 | Apparatus for detecting ground fault in variable-voltage variable-frequency power system | — | 1986-05-13 |