Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875967 | Method for growing a single crystal of cubic boron nitride semiconductor and method for forming a p-n junction thereof, and light emitting element | Osamu Mishima, Shinobu Yamaoka, Junzo Tanaka, Koh Era | 1989-10-24 |