Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8023781 | Broadband wavelength multiplexing and demultiplexing filter and optical splitter with optical signal multiplexing and demultiplexing function | Kazutaka Nara, Haruki Urabe, Masahito Morimoto | 2011-09-20 |
| 7885493 | Broadband wavelength multiplexing and demultiplexing filter and optical splitter with optical signal multiplexing and demultiplexing function | Kazutaka Nara, Haruki Urabe, Masahito Morimoto | 2011-02-08 |
| 7469079 | Broadband wavelength multiplexing and demultiplexing filter and optical splitter with optical signal multiplexing and demultiplexing function | Kazutaka Nara, Haruki Urabe, Masahito Morimoto | 2008-12-23 |