Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4809599 | Image forming apparatus with microcapsule pressure rupture | Minoru Ishikawa | 1989-03-07 |
| 4809049 | Image recording apparatus | Tugio Okuzawa | 1989-02-28 |
| 4799085 | Image recording apparatus and method | Akihiko Nagumo, Minoru Ishikawa | 1989-01-17 |