Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4819057 | Semiconductor light-emitting element | Masayoshi Okamoto, Koichi Mizushima, Toshio Nakayama, Masami Sugiuchi, Akira Miura | 1989-04-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4819057 | Semiconductor light-emitting element | Masayoshi Okamoto, Koichi Mizushima, Toshio Nakayama, Masami Sugiuchi, Akira Miura | 1989-04-04 |