Issued Patents All Time
Showing 1–2 of 2 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, Hiroshi Nakazono | 1987-04-28 |
| 4548154 | Double hulled ship with longitudinal reinforcements | Seiichiro Murata, Toshio Yoshioka, Sakito Kamei, Yoshitada Hiramatsu, Shin Takeuchi | 1985-10-22 |