Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11316590 | Optical transmission device, optical multiplexer, and optical transmission method | — | 2022-04-26 |
| 8559814 | Optical communication device and power-saving control method of optical communication device | Toru Matsuyama | 2013-10-15 |
| 7903984 | Optical receiver | Katsuhiko Hakomori | 2011-03-08 |
| 7720393 | Optical module | Katsuhiko Hakomori | 2010-05-18 |
| 7510338 | Optical transmitting/receiving apparatus | Shin-ichi Sakuramoto, Kazuya Sasaki, Masaki Kunii, Tetsuya Yamada | 2009-03-31 |
| 6744961 | Optical module with metal casing accommodating electrically insulative holder for holding semiconductor package | — | 2004-06-01 |
| 6534997 | Apparatus and a method for locating a fault of a transmission line | Kazunari Tsubaki, Kazuyoshi Shimizu | 2003-03-18 |