Issued Patents All Time
Showing 101–125 of 150 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6983004 | Laser diode and semiconductor light-emitting device producing visible-wavelength radiation | Naoto Jikutani, Takashi Takahashi | 2006-01-03 |
| 6974974 | Light emitting devices with layered III -V semiconductor structures, and modules and systems for computer, network and optical communication, using such devices | Takashi Takahashi, Naoto Jikutani | 2005-12-13 |
| 6975663 | Surface-emission laser diode operable in the wavelength band of 1.1-7μm and optical telecommunication system using such a laser diode | Takuro Sekiya, Akira Sakurai, Masayoshi Katoh, Teruyuki Furuta, Kazuya Miyagaki +9 more | 2005-12-13 |
| 6959025 | Surface-emitting laser diode having reduced device resistance and capable of performing high output operation, surface-emitting laser diode array, electrophotographic system, surface-emitting laser diode module, optical telecommunication system, optical interconnection system using the surface-emitting laser diode, and method of fabricating the surface-emitting laser diode | Naoto Jikutani, Takashi Takahashi | 2005-10-25 |
| 6927412 | Semiconductor light emitter | Takashi Takahashi, Morimasa Kaminishi | 2005-08-09 |
| 6884291 | Laser diode having an active layer containing N and operable in a 0.6 μm wavelength band | Naoto Jikutani, Takashi Takahashi | 2005-04-26 |
| 6879614 | Optical semiconductor device having an active layer containing N | — | 2005-04-12 |
| 6829271 | Light-emitting semiconductor device producing red wavelength optical radiation | Takashi Takahashi, Naoto Jikutani | 2004-12-07 |
| 6815731 | Light emitting semiconductor device with GaInNAs active layers and GaAs spacer layers | — | 2004-11-09 |
| 6803604 | Semiconductor optical modulator, an optical amplifier and an integrated semiconductor light-emitting device | Takashi Takahashi | 2004-10-12 |
| 6765232 | Semiconductor light-emitting device, surface-emission laser diode, and production apparatus thereof, production method, optical module and optical telecommunication system | Takashi Takahashi, Morimasa Kaminishi, Akihiro Itoh, Naoto Jikutani | 2004-07-20 |
| 6697404 | Laser diode operable in 1.3&mgr;m or 1.5&mgr;m wavelength band with improved efficiency | — | 2004-02-24 |
| 6674785 | Vertical-cavity, surface-emission type laser diode and fabrication process thereof | Takashi Takahashi, Naoto Jikutani, Morimasa Kaminishi, Akihiro Itoh | 2004-01-06 |
| 6657233 | Light emitting devices with layered III-V semiconductor structures, and modules and systems for computer, network and optical communication, using such device | Takashi Takahashi, Naoto Jikutani | 2003-12-02 |
| 6617618 | Light emitting semiconductor device with GaInNAs active layer and GaAs spacer layers | — | 2003-09-09 |
| 6614821 | Laser diode and semiconductor light-emitting device producing visible-wavelength radiation | Naoto Jikutani, Takashi Takahashi | 2003-09-02 |
| 6563851 | Laser diode having an active layer containing N and operable in a 0.6 &mgr;m wavelength band | Naoto Jikutani, Takashi Takahashi | 2003-05-13 |
| 6542528 | Light-emitting semiconductor device producing red wavelength optical radiation | Takashi Takahashi, Naoto Jikutani | 2003-04-01 |
| 6490303 | Laser diode module | Manabu Komiyama, Noboru Sonetsuji, Tetsuo Ishizaka, Saeko Yokoi | 2002-12-03 |
| 6452215 | Semiconductor light emitting devices | — | 2002-09-17 |
| 6449299 | Optical semiconductor device having an active layer containing N | — | 2002-09-10 |
| 6382800 | Light emitting semiconductor devices | — | 2002-05-07 |
| 6348698 | Layered semiconductor structures and light emitting devices including the structure | — | 2002-02-19 |
| 6300650 | Optical semiconductor device having a multilayer reflection structure | — | 2001-10-09 |
| 6281518 | Layered III-V semiconductor structures and light emitting devices including the structures | — | 2001-08-28 |