Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4537530 | Marine cable burying method and device therefor | Kazuomi Yamamura, Hideo Ishihara, Yoshinao Iwamoto, Masao Morita, Toshio Izawa | 1985-08-27 |
| 4384808 | Under-water cable burying device | Kazuomi Yamamura, Yoshinao Iwamoto, Kenichi Asakawa | 1983-05-24 |