Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5138265 | Apparatus and system for locating thunderstruck point and faulty point of transmission line | Takeshi Kawamura | 1992-08-11 |
| 5125738 | Apparatus and system for locating a point or a faulty point in a transmission line | Takeshi Kawamura | 1992-06-30 |
| 4496789 | Insulating spacer and metal sheath for gas insulated electrical equipment | Takushi Hara | 1985-01-29 |