Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5153934 | Waveguide-type optical device | Hideaki Okayama | 1992-10-06 |
| 5133028 | Optical wave-length filter and a driving method thereof | Hideaki Okayama, Hiroki Yaegashi | 1992-07-21 |
| 5123069 | Waveguide-type optical switch | Hideaki Okayama, Issei Asabayashi | 1992-06-16 |
| 5086349 | Optical switching system which employs reference beams with different wavelengths | Hideaki Okayama | 1992-02-04 |
| 4586063 | Schottky barrier gate FET including tungsten-aluminum alloy | Hiroshi Nakamura, Katsuzo Kaminishi, Toshio Nonaka | 1986-04-29 |