Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859804 | Electric power supply cable using insulating polyolefin laminate paper | Ryosuke Hata, Shosuke Yamanouchi, Masayuki Hirose, Hidemitsu Kuwabara, Yasuhiro Hagiuda | 1989-08-22 |