Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5672672 | Polymeric optical mixtures, polymeric optical materials and polymeric optical waveguide | Toshio Watanabe, Mitsuo Usui, Shungo Sugawara, Shoichi Hayashida, Saburo Imamura | 1997-09-30 |