Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865407 | Optical waveguide element, method of making the same and optical coupler employing optical waveguide element | Akihiro Suzuki, Makoto Suzuki, Yutaka Hattori, Kazuyuki Miyaki, Kazunari Taki +1 more | 1989-09-12 |