Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855727 | Electrochromic display having a dielectric layer | Soji Tsuchiya, Yoshimasa Ito, Akio Yamashita | 1989-08-08 |
| 4851863 | Ink jet recording apparatus with a device for removing ink attached to an ink jet head | Kiyoshi Yamamori, Kimikatsu Satoh, Shigeyoshi Hasegawa | 1989-07-25 |