Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11022811 | Optical amplifier and optical switch device | Suguru Akiyama, Kazuhiro Ikeda, Takeshi Matsumoto, Keijiro Suzuki, Ken Tanizawa | 2021-06-01 |
| 10901242 | Driving device and driving method for phase controller, and optical switch | Ken Tanizawa, Hiroyuki Matsuura, Satoshi Suda, Haruhiko Kuwatsuka, Keijiro Suzuki +3 more | 2021-01-26 |
| 10613412 | Light beam deflecting element, wavelength-selective cross-connect device using same, and optical cross-connect device | Hisato Uetsuka, Shu Namiki, Kazuhiro Ikeda | 2020-04-07 |
| 8503836 | Wavelength domain optical switch | Hiroshi Ishikawa, Toshifumi Hasama, Kenji Kintaka, Masahiko Mori, Hisato Uetsuka +2 more | 2013-08-06 |
| 8229258 | Optical waveguide-type wavelength domain switch | Hiroshi Ishikawa, Toshifumi Hasama, Kenji Kintaka, Masahiko Mori, Hisato Uetsuka +2 more | 2012-07-24 |
| 5946085 | Dielectric dispersion determining method in terahertz region using femtosecond ultrashort visible optical pulse | Fumio Sasaki, Shunsuke Kobayashi, Toshiro Tani | 1999-08-31 |