Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4828359 | Alkyl methacrylate homo - or copolymer optical waveguide for illumination and production of the same | Yoshinobu Ueba | 1989-05-09 |
NM
Norifumi Matsumiya
Overall (1989): #72,797 of 140,708Top 55%
1
Patents 1989