Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6459567 | Gas-insulated switchgear | Hiroshi Isoya, Takakazu Harada | 2002-10-01 |
| 6445569 | Gas-insulated switchgear | Coichi Shichida | 2002-09-03 |
| 6433998 | Switchgear | Masashi Negawa | 2002-08-13 |
| 6392157 | Device for bus coupling between enclosed switchboards with insulating gas sealed therein | Hiroshi Isoya | 2002-05-21 |