Issued Patents All Time
Showing 1–25 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7587112 | Optical device and light control method | — | 2009-09-08 |
| 7428355 | Wavelength selective and level adjusting optical device | Koji Terada, Kohei Shibata, Terukazu Naruse | 2008-09-23 |
| 7400793 | Optical device with slab waveguide and channel waveguides on substrate | Terukazu Naruse, Koji Terada, Kohei Shibata | 2008-07-15 |
| 7386206 | Optical device with slab waveguide and channel waveguides on substrate | Terukazu Naruse, Koji Terada, Kohei Shibata | 2008-06-10 |
| 7313301 | Optical fiber device, optical monitor and optical switch | — | 2007-12-25 |
| 7289695 | Optical switching device and optical member unit | — | 2007-10-30 |
| 7239770 | Optical device | Koji Terada, Kohei Shibata, Terukazu Naruse | 2007-07-03 |
| 7130504 | Optical demultiplexing device and optical monitoring device | — | 2006-10-31 |
| 7020358 | Wavelength division demultiplexing apparatus | Terukazu Naruse | 2006-03-28 |
| 6978061 | Optical switching device | — | 2005-12-20 |
| 6965717 | Optical device, polarization monitor and optical switch | — | 2005-11-15 |
| 6920264 | Arrayed waveguide grating type wavelength division demultiplexer | — | 2005-07-19 |
| 6813415 | Wavelength multiplexing/demultiplexing apparatus | Terukazu Naruse | 2004-11-02 |
| 6810167 | Wavelength division demultiplexing apparatus | Terukazu Naruse | 2004-10-26 |
| 6807354 | Waveguide optical device | Goji Nakagawa | 2004-10-19 |
| 6579739 | Optical transmitting and receiving device and the manufacturing method | Koji Terada, Kazuhiro Tanaka | 2003-06-17 |
| 6552366 | Optical transmitting and receiving device and the manufacturing method | Koji Terada, Kazuhiro Tanaka | 2003-04-22 |
| 6529647 | Optical device with optical waveguides and manufacturing method therefor | — | 2003-03-04 |
| 6238943 | Optical semiconductor device and a method of manufacturing the same | Hirohiko Kobayashi, Mitsuru Ekawa, Nirou Okazaki, Shouichi Ogita, Haruhisa Soda +1 more | 2001-05-29 |
| 6112002 | Optical coupler optically coupling a light beam of a semiconductor laser source with a single mode optical waveguide or fiber | — | 2000-08-29 |
| 6085000 | Wavelength division multiplexing optical device and manufacturing method therefor | Kazuhiro Tanaka, Goji Nakagawa, Youske Yamazaki | 2000-07-04 |
| 6038242 | Multiwavelength light source | Tsuyoshi Yamamoto, Goji Nakagawa, Yousuke Yamazaki | 2000-03-14 |
| 5987046 | Optical semiconductor device and a method of manufacturing the same | Hirohiko Kobayashi, Mitsuru Ekawa, Nirou Okazaki, Shouichi Ogita, Haruhisa Soda +1 more | 1999-11-16 |
| 5909524 | Optical coupling structure and a fabrication process thereof | — | 1999-06-01 |
| 5787106 | Optical semiconductor device for changing a beam diameter | Masumi Norizuki, Masami Goto | 1998-07-28 |