Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865655 | Gallium arsenide phosphide mixed crystal epitaxial wafer with a graded buffer layer | Masaaki Kanayama, Takeshi Okano | 1989-09-12 |
| 4865682 | Growth method of an organic compound single crystal and a boat used therefor | Takeshi Okano, Eiichiro Nishihara | 1989-09-12 |