Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820005 | Method of fixing a polygon mirror and an optical deflector having such polygon mirror | Yoshio Hashimoto | 1989-04-11 |
HT
Hiroki Tajima
Tohoku Ricoh Co.: 1 patents #1 of 7Top 15%
Overall (1989): #104,016 of 140,708Top 75%
1
Patents 1989