Issued Patents All Time
Showing 51–75 of 87 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7006545 | Semiconductor laser device and optical fiber amplifier using the same | Naoki Tsukiji, Tsuyoshi Saito, Satoshi Irino, Ryuichiro Minato | 2006-02-28 |
| 6996149 | Semiconductor laser device and semiconductor laser module | Naoki Tsukiji | 2006-02-07 |
| 6967982 | Semiconductor laser device with a strain reduction cushion function, semiconductor laser module, and semiconductor laser device fabrication method | Tsuyoshi Wakisaka, Naoki Tsukiji, Masayoshi Seki, Yutaka Oki | 2005-11-22 |
| 6950452 | Semiconductor laser module and method for simultaneously reducing relative intensity noise (RIN) and stimulated brillouin scattering (SBS) | Naoki Tsukiji, Toshio Kimura, Souko Kado | 2005-09-27 |
| 6947463 | Semiconductor laser device for use in a laser module | Naoki Tsukiji, Masaki Funabashi | 2005-09-20 |
| 6937599 | Data source, data conversion device, inverse data conversion device, auxiliary data file generation device, reception method, medium and information aggregate | Chiyoko Matsumi, Tatsuro Juri, Masazumi Yamada | 2005-08-30 |
| 6934311 | Semiconductor laser module and Raman amplifier | Hiroshi Shimizu, Naoki Tsukiji, Toshio Kimura, Yutaka Ohki, Kouhei Terada +1 more | 2005-08-23 |
| 6925102 | Semiconductor laser device, semiconductor laser module, and Raman amplifier using the device or module | Naoki Tsukiji, Satoshi Irino | 2005-08-02 |
| 6901095 | Semiconductor laser module, optical measuring method and optical measuring apparatus | Kohei Tsunetomo, Naoki Tsukiji, Naoki Hayamizu, Takashi Koseki | 2005-05-31 |
| 6898228 | Semiconductor laser device, semiconductor laser module, Raman amplifier using the device or module, and method for forming a suitable current blocking layer | Satoshi Irino, Naoki Tsukiji | 2005-05-24 |
| 6876680 | Semiconductor laser device, semiconductor laser module, and optical fiber amplifier | Naoki Tsukiji | 2005-04-05 |
| 6870871 | Semiconductor laser devices, and semiconductor laser modules and optical communication systems using the same | Naoki Tsukiji, Takeshi Aikiyo, Satoshi Koyanagi | 2005-03-22 |
| 6845117 | Semiconductor laser device, semiconductor laser module, and optical fiber amplifier using the device or module | Tsuyoshi Wakisaka, Naoki Tsukiji, Toshio Kimura, Shu Namiki | 2005-01-18 |
| 6829285 | Semiconductor laser device and method for effectively reducing facet reflectivity | Naoki Tsukiji | 2004-12-07 |
| 6822982 | Device and method for providing a tunable semiconductor laser | Naoki Tsukiji | 2004-11-23 |
| 6810049 | Semiconductor laser device and semiconductor laser module | Tsuyoshi Wakisaka, Naoki Tsukiji | 2004-10-26 |
| 6798798 | Semiconductor laser apparatus and fabrication method of same, and semiconductor laser module | Naoki Tsukiji, Toshio Kimura | 2004-09-28 |
| 6782028 | Semiconductor laser device for use in a semiconductor laser module and an optical amplifier | Naoki Tsukiji, Masaki Funabashi, Toshio Kimura, Takeshi Aikiyo, Takeo Shimizu +5 more | 2004-08-24 |
| 6765935 | Semiconductor laser module, manufacturing method thereof and optical amplifier | Toshio Kimura, Masashi Nakae, Takeo Shimizu, Naoki Tsukiji, Masaki Funabashi +5 more | 2004-07-20 |
| 6760352 | Semiconductor laser device with a diffraction grating and semiconductor laser module | Tsuyoshi Wakisaka, Naoki Tsukiji | 2004-07-06 |
| 6750478 | Semiconductor laser device and method for suppressing fabry perot oscillations | Naoki Tsukiji | 2004-06-15 |
| 6711343 | DATA RECORDING/REPRODUCING DEVICE, FILE MANAGING METHOD, FILE INFORMATION GENERATING METHOD, FILE MANAGING METHOD, MANAGEMENT INFORMATION GENERATING DEVICE, MANAGEMENT INFORMATION ANALYZING DEVICE, AND MEDIUM | Chiyoko Matsumi, Masazumi Yamada, Akira Iketani, Noriyuki Matsumoto, Hiroyuki Iltsuka | 2004-03-23 |
| 6704338 | Semiconductor laser device, semiconductor laser module, and semiconductor laser control method | — | 2004-03-09 |
| 6680960 | Semiconductor laser device having a diffraction grating on a light emission side | Naoki Tsukiji, Masaki Funabashi | 2004-01-20 |
| 6643308 | Semiconductor laser device and method for suppressing injection current | Naoki Tsukiji | 2003-11-04 |