Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4502320 | Method and apparatus for diagnosing oil-filled electric apparatus | Seiichi Sakai, Hideo Tsukioka, Katuo Sugawara, Ichitaro Tani, Etsunori Mori +1 more | 1985-03-05 |
| 4444040 | Method and apparatus for detecting gas components in oil in oil-filled device | Seiichi Sakai, Katuo Sugawara, Hideo Tsukioka, Ictitaro Tani, Shigeo Shiono +1 more | 1984-04-24 |