Issued Patents All Time
Showing 51–62 of 62 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7330617 | Wavelength selective optical switch, and optical device provided with spectroscopic function | Hirofumi Aota, Tamotsu Akashi, Shinji Yamashita, Tsuyoshi Yamamoto, Shinichi Takeuchi +4 more | 2008-02-12 |
| 7263254 | Optical switch and control method therefor | Shinji Yamashita, Tsuyoshi Yamamoto, Tamotsu Akashi, Hirofumi Aota | 2007-08-28 |
| 7239770 | Optical device | Koji Terada, Haruhiko Tabuchi, Terukazu Naruse | 2007-07-03 |
| 7231111 | Tunable dispersion compensator | — | 2007-06-12 |
| 7171076 | Dispersion-slope compensator | — | 2007-01-30 |
| 6847759 | Wavelength dispersion compensating filter | — | 2005-01-25 |
| 6393069 | Circuit and method for compensating for degradation in pulse width of burst data | — | 2002-05-21 |
| 6292058 | Signal amplifying circuit connected to a transfer circuit having a known non-linear transfer characteristic | Satoshi Ide | 2001-09-18 |
| 6252458 | Differential amplifier | — | 2001-06-26 |
| 6163215 | Variable gain amplifier | Satoshi Ide | 2000-12-19 |
| 5737111 | Optical receiving apparatus | Kazuyuki Mori | 1998-04-07 |
| 5344243 | Head wire and manufacturing process thereof | Tsutomu Sawa, Hiroyuki Takenoshita, Hirohide Komatsu | 1994-09-06 |