Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888334 | Pressure-sensitive microcapsule sheet | Keiso Saeki | 1989-12-19 |
| 4822768 | Pressure sensitive recording sheet | Keiso Saeki | 1989-04-18 |
KO
Kunihiko Ohga
Overall (1989): #21,741 of 140,708Top 20%
2
Patents 1989