Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4502320 | Method and apparatus for diagnosing oil-filled electric apparatus | Seiichi Sakai, Toshihiko Gange, Katuo Sugawara, Ichitaro Tani, Etsunori Mori +1 more | 1985-03-05 |
| 4470832 | Gas chromatographic apparatus | Katuo Sugawara, Ictitaro Tani, Etsuo Ohe, Etsunori Mori | 1984-09-11 |
| 4444040 | Method and apparatus for detecting gas components in oil in oil-filled device | Seiichi Sakai, Toshihiko Gange, Katuo Sugawara, Ictitaro Tani, Shigeo Shiono +1 more | 1984-04-24 |
| 4436654 | Fire-retardant insulating oils | Etsuo Ohe, Katsuo Sugawara, Ititaro Tani | 1984-03-13 |
| 4402211 | System for monitoring abnormality of oil-filled electric devices | Katuo Sugawara, Etsuo Ohe, Ichitaro Tani | 1983-09-06 |