Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4309816 | Method of manufacturing gas-charged electric switches | Hidetoshi Takeyama, Yasuo Yuasa | 1982-01-12 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4309816 | Method of manufacturing gas-charged electric switches | Hidetoshi Takeyama, Yasuo Yuasa | 1982-01-12 |