Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5923800 | Optical waveguide module having main-line waveguide and branch waveguides, and optical transmission device including such optical waveguide module | Toshihiko Takano, Michio Ohba, Hisashi Ohwada, Yasunari Kawabata, Kuniaki Jinnai | 1999-07-13 |