Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4534678 | Offshore structure and method of constructing same | Koichiro Okuto, Toshio Kai | 1985-08-13 |
| 4234217 | Pipe joint construction | Suguru Sakamoto, Tsugio Minoshima, Tohachiro Tanaka | 1980-11-18 |