Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5540085 | Method of measuring leakage position in impervious bottom sheet using electrodes mounted on both surfaces of the sheet and apparatus therefor | Fumio Sakata, Nobuyoshi Yamazaki, Hitoshi Arai, Ken-ichi Arai, Masanobu Furukawa | 1996-07-30 |