Issued Patents All Time
Showing 51–64 of 64 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6728435 | Arrayed waveguide grating type optical multiplexer/demultiplexer and optical waveguide circuit | Kazuhisa Kashihara | 2004-04-27 |
| 6671433 | Arrayed waveguide grating type optical multiplexer/demultiplexer | Kazuhisa Kashihara | 2003-12-30 |
| 6668116 | Arrayed waveguide grating type optical multiplexer/demultiplexer | Kazuhisa Kashihara, Yoshinobu Nekado, Tunetoshi Saito | 2003-12-23 |
| 6631235 | Planar lightwave circuit platform and method for manufacturing the same | Hiroshi Kawashima, Shiro Nakamura, Kazunori Watanabe | 2003-10-07 |
| 6591044 | Optical waveguide circuit module | Kazuhisa Kashihara, Tunetoshi Saito, Takeshi Nakajima | 2003-07-08 |
| 6567587 | Dispersion compensator and dispersion-compensating module employing the same | Kazuhisa Kashihara, Kanji Tanaka | 2003-05-20 |
| 6563986 | Arrayed waveguide grating | Kazuhisa Kashihara | 2003-05-13 |
| 6539158 | Optical waveguide circuit | Kazuhisa Kashihara, Hiroyuki Koshi, Takeshi Nakajima | 2003-03-25 |
| 6504983 | Optical waveguide and method for fabricating the same | Kazuhisa Kashihara | 2003-01-07 |
| 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 |