Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4862153 | Flat display panel with framing for flexible substrate folding | Hisao Kawaguchi, Shigeo Nakabu | 1989-08-29 |
| 4809840 | Curved escalator | — | 1989-03-07 |
| 4806503 | Method for the replacement of semiconductor devices | Hirokazu Yoshida, Keiji Yamamura | 1989-02-21 |