Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9123374 | Heat assisted magnetic recording writer having an integrated polarization rotation plate | Alexander Vassilievich Demtchouk, Weigang Wang, Kyung Lee | 2015-09-01 |
| 6517257 | Optical transmitter/receiver apparatus, method for fabricating the same and optical semiconductor module | Tohru Nishikawa, Tomoaki Uno, Masahiro Mitsuda | 2003-02-11 |
| 6406196 | Optical device and method for producing the same | Tomoaki Uno, Jun Ohya, Masahiro Mitsuda | 2002-06-18 |
| 6332719 | Optical transmitter/receiver apparatus, method for fabricating the same and optical semiconductor module | Tohru Nishikawa, Tomoaki Uno, Masahiro Mitsuda | 2001-12-25 |
| 5659558 | Short-wavelength laser element doped with rare earth ions, optical amplifier doped with rare earth ions, and wavelength converter doped with rare earth ions | Jun Ohya, Tomoaki Uno | 1997-08-19 |
| 5426656 | Laser element doped with rare earth ions, optical amplifier element doped with rare earth ions and rare-earth-ion-doped short-wavelength laser light source apparatus | Jun Ohya, Hisanao Sato, Tomoaki Uno | 1995-06-20 |
| 5341237 | Rare earth ion doped optical element | Hisanao Sato, Toshihiro Fujita, Jun Ohya | 1994-08-23 |
| 5321708 | Optical fiber amplifier doped with dysprosium ion for the 1.3 .mu.m wavelength band | Hisanao Sato, Jun Ohya, Toshihiro Fujita | 1994-06-14 |