Issued Patents 2002
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6501882 | Arrayed waveguide grating type optical multiplexer/demultiplexer | Kazuhisa Kashihara | 2002-12-31 |
| 6501896 | Optical waveguide circuit | Takeshi Nakajima, Kazuhisa Kashihara | 2002-12-31 |
| 6490395 | Arrayed waveguide grating and method for compensating optical transmitting center wavelength of light traveling through the same | Takeshi Nakajima, Tsunetoshi Saito, Kazuhisa Kashihara | 2002-12-03 |
| 6456763 | Arrayed waveguide grating type optical multiplexer/demultiplexer and a method of manufacturing the same | Kazuhisa Kashihara, Yoshinobu Nekado | 2002-09-24 |
| 6442314 | Arrayed waveguide grating | Kazuhisa Kashihara | 2002-08-27 |