Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861835 | Polymer blend composition suitable as optical material | Kazuhiko Maeda, Toshio Koishi | 1989-08-29 |
| 4842369 | Cladding material for plastic optical fiber and plastic optical fiber using the same | Shinichi Teshima, Shigeki Katsuta, Kazuhiko Maeda, Toshio Koishi | 1989-06-27 |