Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4801195 | Variable light transmittance glass board functional as electrochromic cell | Mikio Kawai, Harutoshi Miyagi | 1989-01-31 |
MU
Mikio Ura
Overall (1989): #74,995 of 140,708Top 55%
1
Patents 1989