Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5331180 | Porous semiconductor light emitting device | Masao Yamada, Motoo Nakano, George J. Collins, Tetsuro Tamura | 1994-07-19 |
AT
Akira Takazawa
Overall (1994): #159,608 of 165,921Top 100%
1
Patents 1994