Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853748 | Variable magnification copier | Yuji Okamoto, Shigeharu Maehara | 1989-08-01 |
| 4816872 | Automatic copying machine | Yuji Okamoto | 1989-03-28 |
KF
Katsuyoshi Fujiwara
Overall (1989): #23,067 of 140,708Top 20%
2
Patents 1989