Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6598224 | Data management unit, computer system and computer-readable storage medium | Takeshi Maeda, Yutaka Sakai, Tatsuji Tanaka, 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, Tatsuji Tanaka, Katsuhiko Sekiguchi | 2003-05-27 |