Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5133031 | Optical shunt device | Toshiyasu Tanaka, Toyohiro Kobayashi | 1992-07-21 |
| 4948218 | Optoelectronic device for an optical communication system | Toyohiro Kobayashi | 1990-08-14 |