Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855727 | Electrochromic display having a dielectric layer | Soji Tsuchiya, Sadashi Higuchi, Akio Yamashita | 1989-08-08 |
YI
Yoshimasa Ito
Overall (1989): #41,109 of 140,708Top 30%
1
Patents 1989