Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855207 | Developer for electrophotography | Kayoko Nagai | 1989-08-08 |
| 4797341 | Liquid developer for electrophotography | — | 1989-01-10 |
KT
Kazuo Tsubuko
Overall (1989): #22,657 of 140,708Top 20%
2
Patents 1989