Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4347169 | Electrical insulating oil and oil-filled electrical appliances | Atsushi Sato, Naoya Takahashi, Keiji Endo | 1982-08-31 |
| 4329536 | Oil-impregnated power cable | Atushi Sato, Isoo Shimizu, Keizi Endo | 1982-05-11 |