Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12169347 | Semiconductor Mach-Zehnder optical modulator and IQ modulator | Josuke Ozaki, Yoshihiro Ogiso | 2024-12-17 |
| 11994783 | IQ optical modulator | Yoshihiro Ogiso, Josuke Ozaki, Mitsuteru Ishikawa, Nobuhiro Nunoya | 2024-05-28 |
| 11971590 | Optical coupling method | Yoshihiro Ogiso, Josuke Ozaki | 2024-04-30 |
| 8625943 | Waveguide device and module | Shunichi Soma, Takashi Goh, Masahiro Yanagisawa, Takanori Ishikawa, Mitsuru Nagano +2 more | 2014-01-07 |
| 8346030 | Polarization-independent waveguide-type optical interference circuit | Manabu Oguma, Takashi Saida, Masaki Kotoku, Takayuki Mizuno | 2013-01-01 |
| 8150219 | Waveguide-type optical interferometer | Yusuke Nasu, Manabu Oguma, Yasuyuki Inoue, Hiroshi Takahashi, Kuninori Hattori +2 more | 2012-04-03 |
| 7389033 | Planar lightwave circuit type variable optical attenuator | Yasuyuki Inoue, Takashi Saida, Akio Sugita | 2008-06-17 |
| 6757454 | Polarization desensitized optical waveguide interferometer | Yasuyuki Inoue, Yoshinori Hibino, Akio Sugita, Yasuhiro Hida, Hiroshi Takahashi | 2004-06-29 |