Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888707 | Object collision detection method and apparatus | — | 1989-12-19 |
| 4830747 | Filter apparatus for removing plankton | Misao Kubota, Osamu Sugai, Tetsuo Goto, Toshiaki Yamaguchi, Kikuo Koizumi | 1989-05-16 |