Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4674430 | Ship without transverse reinforcing members between the inner and outer hull plating | Masaru Tateishi, Kohji Hayakawa, Takeshi Sakamoto, Kohsuke Mukasa | 1987-06-23 |
| 4660491 | Double hull ship without reinforcing transverse members between the inner and outer hull platings | Masaru Tateishi, Toshio Yoshioka, Sakito Kamei, Hiroshi Nakazono, Yoshiro Yamawaki | 1987-04-28 |
| 4573422 | Ship without transverse reinforcing members between the inner and outer hull plating | Masaru Tateishi, Kohji Hayakawa, Takeshi Sakamoto, Shin Takeuchi, Kohsuke Mukasa | 1986-03-04 |
| 4548154 | Double hulled ship with longitudinal reinforcements | Toshio Yoshioka, Sakito Kamei, Yoshitada Hiramatsu, Shin Takeuchi, Yoshiro Yamawaki | 1985-10-22 |