Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4821753 | Apparatus for cleaning of coupler elements | Toshiharu Miura, Kazuhiro Kikkawa | 1989-04-18 |
| 4821240 | Semiconductor integrated circuit with nonvolatile memory | Terumi Sawase | 1989-04-11 |