Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9129091 | Content management device and content management method | — | 2015-09-08 |
| 5222839 | Method and apparatus for underwater reclamation | Kazunori Ishida, Yasutaka Nakai, Motoyoshi Ishii, Kiyoyuki Abe | 1993-06-29 |