Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820918 | Optical encoder including transparent substrates having formed indicators therein | Masahiko Igaki, Masahiro Rachi | 1989-04-11 |
TM
Tomohiro Maekawa
Overall (1989): #48,653 of 140,708Top 35%
1
Patents 1989