Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4674430 | Ship without transverse reinforcing members between the inner and outer hull plating | Seiichiro Murata, Masaru Tateishi, Kohji Hayakawa, Takeshi Sakamoto | 1987-06-23 |
| 4573422 | Ship without transverse reinforcing members between the inner and outer hull plating | Seiichiro Murata, Masaru Tateishi, Kohji Hayakawa, Takeshi Sakamoto, Shin Takeuchi | 1986-03-04 |