Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6845301 | System for protecting and controlling substation main circuit components | Koichi Hamamatsu, Tokuo Ito, Hachidai Ito, Yoshito Sameda, Toshiyuki Saida +9 more | 2005-01-18 |
| 6598224 | Data management unit, computer system and computer-readable storage medium | Takeshi Maeda, Yutaka Sakai, Yoshihiro Koizumi, Katsuhiko Sekiguchi | 2003-07-22 |
| 6571153 | Electric power system protective control system, method of controlling electric power system protective control system and storage medium storing program module | Takeshi Maeda, Yoshihiro Koizumi, Katsuhiko Sekiguchi | 2003-05-27 |