Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4815083 | Buried heterostructure semiconductor laser with high-resistivity semiconductor layer for current confinement | Shigeo Sugou | 1989-03-21 |
| 4636821 | Surface-emitting semiconductor elements | Hiroyoshi Rangu | 1987-01-13 |
| 4629532 | Method of growing InGaAsP on InP substrate with corrugation | Ikuo Mito | 1986-12-16 |
| 4378986 | Method of manufacturing optical fibers | Motohiro Arai | 1983-04-05 |