Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4470143 | Semiconductor laser having an etched mirror and a narrow stripe width, with an integrated photodetector | Mitsuhiro Kitamura, Kohroh Kobayashi | 1984-09-04 |
| 4289373 | Bidirectional optical fiber transmission system | Kouichi Minemura | 1981-09-15 |
| 4265513 | Light switch | Shigeo Matsushita, Ro Ishikawa, Kazuhisa Kaede, Ikuo Mito | 1981-05-05 |
| 4213677 | Light coupling and branching device using light focusing transmission body | Ro Ishikawa, Shigeo Matsushita | 1980-07-22 |