Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12199057 | Semiconductor device | Yusuke Ito, Takahiro Maeda, Akira Kimura, Tsubasa Inoue | 2025-01-14 |
| 6836608 | Planar optical waveguide, method for manufacturing the same and polymer optical waveguide | Yoshio Kishimoto | 2004-12-28 |
| 6714696 | Light-wave circuit module and method for manufacturing the same | Yoshio Kishimoto | 2004-03-30 |
| 6547451 | Optical communications module and method for mounting optical communications module | Tohru Nishikawa, Tomoaki Uno, Yasuhiro Kobayashi | 2003-04-15 |
| 6517257 | Optical transmitter/receiver apparatus, method for fabricating the same and optical semiconductor module | Tohru Nishikawa, Tomoaki Uno, Genji Tohmon | 2003-02-11 |
| 6515307 | Bidirectional optical semiconductor apparatus | Tohru Nishikawa, Tomoaki Uno | 2003-02-04 |
| 6406196 | Optical device and method for producing the same | Tomoaki Uno, Jun Ohya, Genji Tohmon | 2002-06-18 |
| 6350064 | Bidirectional optical semiconductor apparatus | Tohru Nishikawa, Tomoaki Uno | 2002-02-26 |
| 6332719 | Optical transmitter/receiver apparatus, method for fabricating the same and optical semiconductor module | Tohru Nishikawa, Tomoaki Uno, Genji Tohmon | 2001-12-25 |
| 6327407 | Semiconductor light-receiving device, method of manufacturing the same, bidirectional optical semiconductor device, and optical transmission system | Tohru Nishikawa, Tomoaki Uno | 2001-12-04 |
| 6264377 | Bidirectional optical semiconductor apparatus | Tohru Nishikawa, Tomoaki Uno | 2001-07-24 |
| 5978535 | Semiconductor laser module, optical fiber amplifier and optical transfer system | Souichi Kimura, Tomoaki Uno | 1999-11-02 |
| 5936763 | Optical fiber amplifier, semiconductor laser module for pumping and optical signal communication system | Tomoaki Uno, Kiyoshi Fujihara | 1999-08-10 |
| 5914808 | Intermediate isolator type fiber amplifier and fiber transmission system | Jun Ohya, Tomoaki Uno | 1999-06-22 |
| 5623362 | Erbium-doped fiber amplifier and an optical fiber communication system | Jun Ohya | 1997-04-22 |
| 5598491 | Optical fiber amplifier and optical fiber transmission apparatus | Jun Ohya, Tomoaki Uno | 1997-01-28 |
| 5598294 | Optical fiber amplifier and optical fiber communication system | Tomoaki Uno, Jun Ohya | 1997-01-28 |
| 5563733 | Optical fiber amplifier and optical fiber transmission system | Jun Ohya, Tomoaki Uno | 1996-10-08 |