Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5259159 | Construction having a damping device | Hiroshi Kawase, Ikuo Takahashi, Toshiaki Sato, Yasuhiro Hayashi, Toru Ishii +2 more | 1993-11-09 |
| 4958956 | Submerged flexible wave restraining structure and a method of constructing it | Masahiro Tanaka, Takumi Ohyama, Akihiko Hirayama, Seiji Ichii, Yutaka Katsura +2 more | 1990-09-25 |