Issued Patents All Time
Showing 1–3 of 3 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, Hiroshi Nakazono, Yoshiro Yamawaki | 1987-04-28 |
| 4548154 | Double hulled ship with longitudinal reinforcements | Seiichiro Murata, Toshio Yoshioka, Yoshitada Hiramatsu, Shin Takeuchi, Yoshiro Yamawaki | 1985-10-22 |
| 4538481 | First-order balancer of internal combustion engine | Michio Ohta, Kazumi Aoki | 1985-09-03 |