Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4347581 | Input setting method for digital operational devices | Mitsuru Yamaura, Ryotaro Kondow, Yoshiji Nii | 1982-08-31 |
| 4339802 | Digital protective relaying devices | Mitsuru Yamaura, Ryotaro Kondow, Eiichi Okamoto | 1982-07-13 |