Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4660491 | Double hull ship without reinforcing transverse members between the inner and outer hull platings | Seiichiro Murata, Masaru Tateishi, Toshio Yoshioka, Sakito Kamei, Yoshiro Yamawaki | 1987-04-28 |