Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882682 | Apparatus for detecting position of internal fault of gas insulated bus | Koji Takasuka | 1989-11-21 |
| 4685018 | Arc detector for gas insulated electrical apparatus | Shoji Tada | 1987-08-04 |
| 4239949 | Self-extinguishing type circuit interrupter | Masami Kii, Yoshihiro Ueda | 1980-12-16 |
| 4228332 | Gas pressure circuit interrupter | Yoshihiro Ueda, Masami Kii | 1980-10-14 |
| 4207447 | Gas interrupter having narrow and wide arc passages | — | 1980-06-10 |