Issued Patents 2002
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6501896 | Optical waveguide circuit | Kazutaka Nara, Kazuhisa Kashihara | 2002-12-31 |
| 6490395 | Arrayed waveguide grating and method for compensating optical transmitting center wavelength of light traveling through the same | Kazutaka Nara, Tsunetoshi Saito, Kazuhisa Kashihara | 2002-12-03 |
| 6445853 | Arrayed waveguide grating | Kazuhisa Kashihara, Tsunetoshi Saito | 2002-09-03 |
| 6434098 | Optical disc device | Shinichi Konishi, Harumitsu Miyashita, Toshihiko Takahashi, Toshiya Akagi, Yuji Hisakado +1 more | 2002-08-13 |
| RE37801 | Optical recording disk capable of resynchronization in digital encoding and decoding | Toshiyuki Shimada | 2002-07-23 |
| 6418249 | Optical multiplexer/demultiplexer | Shiro Nakamura, Kanji Tanaka | 2002-07-09 |
| 6415072 | Optical wavelength multiplexing and dividing device | Naoki Hashizume, Hiroyuki Koshi, Kanji Tanaka | 2002-07-02 |
| 6404946 | Arrayed waveguide grating type optical multiplexer/demultiplexer | Kanji Tanaka, Toshihiko Ohta, Shiro Nakamura | 2002-06-11 |
| 6393170 | Optical multiplexer/demultiplexer | Naoki Hashizume, Kanji Tanaka | 2002-05-21 |