Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8503836 | Wavelength domain optical switch | Hiroshi Ishikawa, Hitoshi Kawashima, Kenji Kintaka, Masahiko Mori, Hisato Uetsuka +2 more | 2013-08-06 |
| 8229258 | Optical waveguide-type wavelength domain switch | Hiroshi Ishikawa, Hitoshi Kawashima, Kenji Kintaka, Masahiko Mori, Hisato Uetsuka +2 more | 2012-07-24 |
| 7567736 | Waveguide type wavelength domain optical switch | Hiroshi Ishikawa, Masahiko Mori, Hisato Uetsuka | 2009-07-28 |