Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7974327 | Surface emitting laser element array | Maiko Ariga, Takeo Kageyama, Norihiro Iwai | 2011-07-05 |
| 7061954 | Semiconductor optical waveguide structure | Norihiro Iwai, Akihiko Kasukawa | 2006-06-13 |
| 6281523 | Semiconductor optical waveguide | Norihiro Iwai, Akihiko Kasukawa | 2001-08-28 |
| 6177710 | Semiconductor waveguide type photodetector and method for manufacturing the same | Koji Hiraiwa | 2001-01-23 |
| 6115116 | Waveguide-type variable-sensitivity semiconductor photodetector | Junji Yoshida, Noriyuki Yokouchi, Takeharu Yamaguchi | 2000-09-05 |
| 5998851 | Optical waveguide type photodiode and a process of producing the same | — | 1999-12-07 |
| 5991473 | Waveguide type semiconductor photodetector | Michinori Irikawa | 1999-11-23 |
| 5926585 | Waveguide type light receiving element | Michinori Irikawa, Takehiko Nomura | 1999-07-20 |
| 5920079 | Semiconductive light-emitting device having strained MQW with AlGaInAs barriers | Hitoshi Shimizu, Toru Fukushima, Michinori Irikawa | 1999-07-06 |
| 5789765 | Photo diode providing high-linearity signal current in response to light receiving signal | Michinori Irikawa | 1998-08-04 |
| 5608230 | Strained superlattice semiconductor photodetector having a side contact structure | Yoshiyuki Hirayama, Michinori Irikawa | 1997-03-04 |
| 5432124 | Method of manufacturing compound semiconductor | Yuji Hiratani, Michinori Irikawa | 1995-07-11 |