Issued Patents All Time
Showing 51–51 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4958956 | Submerged flexible wave restraining structure and a method of constructing it | Masahiro Tanaka, Takumi Ohyama, Akihiko Hirayama, Tetsushi Kiyokawa, Seiji Ichii +2 more | 1990-09-25 |