Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12047121 | Optical device, optical transmission apparatus, optical reception apparatus, and optical communication apparatus | Kazumasa Takabayashi, Masaki Sugiyama, Shuntaro Makino | 2024-07-23 |
| 11710914 | Optical module | Tomonori Azuma, Tetsuo Ishizaka | 2023-07-25 |
| 11309985 | Light source device that includes a plurality of light sources with different wavelengths and method of controlling wavelengths | — | 2022-04-19 |
| 10714896 | Multi-wavelength light source and optical module using the same | — | 2020-07-14 |
| 10411823 | Optical transmitter and optical receiver | — | 2019-09-10 |
| 8965201 | Optical transmission device and optical transmission method | Naoki Kuwata | 2015-02-24 |
| 8130443 | Optical waveform reshaping device | — | 2012-03-06 |
| 8031394 | Wavelength conversion system, optical integrated device and wavelength conversion method | Haruhiko Kuwatsuka | 2011-10-04 |
| 7998609 | Secondary cell replacing method | Masahiro Takada, Yoshiyuki Nakamura, Kazuo Tojima | 2011-08-16 |
| 7595508 | Optical semiconductor device and method for fabricating the same | Yoshiaki Nakata | 2009-09-29 |
| 7564883 | Optical semiconductor device and method for fabricating the same | — | 2009-07-21 |
| 7522647 | Semiconductor laser and method of fabricating the same | Nobuaki Hatori, Tsuyoshi Yamamoto, Yasuhiko Arakawa | 2009-04-21 |
| 7436586 | Wavelength conversion system, optical integrated device and wavelength conversion method | Haruhiko Kuwatsuka | 2008-10-14 |
| 7099363 | Surface-emitting laser with a low threshold value and low power consumption and method of manufacturing the same | — | 2006-08-29 |
| 6728287 | Surface emitting semiconductor laser device capable of improving heat radiation efficiency and its manufacture method | — | 2004-04-27 |
| 5404370 | Planar light emitting device having a reduced optical loss | Hajime Shoji | 1995-04-04 |
| 5373520 | Surface emitting laser and method of manufacturing the same | Hajime Shoji, Tatsuroh Ikeda, Manabu Matsuda, Hiroshi Ishikawa | 1994-12-13 |