Issued Patents All Time
Showing 1–25 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12189220 | Optical modulation element | — | 2025-01-07 |
| 10921517 | Electro-optic waveguide device and optical module | Hiroki Irie, Hiroaki Inoue, Takayoshi Fukui, Shigehisa Tanaka | 2021-02-16 |
| 10627572 | Optical waveguide element | — | 2020-04-21 |
| 10014953 | Optical receiver circuit and adjustment method for same | — | 2018-07-03 |
| 9927637 | Optical waveguide element | — | 2018-03-27 |
| 9880404 | Optical waveguide device and method of manufacturing the same | Kazuhiro Goi, Guo-Qiang Lo, Tsung-Yang Liow, Xiaoguang Tu | 2018-01-30 |
| 9857533 | Optical waveguide element, light-receiving device, optical communication device, optical modulator, optical resonator, and method for manufacturing optical waveguide element | Hiroyuki Kusaka, Ryokichi Matsumoto, Kazuhiro Goi | 2018-01-02 |
| 9857534 | Optical waveguide device having a light absorber for split out modes | Hiroyuki Kusaka, Kazuhiro Goi | 2018-01-02 |
| 9817294 | Optical modulation device | Kazuhiro Goi, Hiroki Ishihara, Kenji Oda, Hiroyuki Kusaka, Ryokichi Matsumoto +1 more | 2017-11-14 |
| 9726822 | Optical integrated circuit | — | 2017-08-08 |
| 9557482 | High-order polarization conversion device, optical waveguide device, and DP-QPSK modulator | Akira Oka, Kazuhiro Goi, Hiroyuki Kusaka | 2017-01-31 |
| 9529151 | Polarization conversion element | Kazuhiro Goi, Akira Oka, Hiroyuki Kusaka | 2016-12-27 |
| 9448425 | Optical waveguide element and optical modulator | Kazuhiro Goi, Hiroyuki Kusaka | 2016-09-20 |
| 9335472 | Planar optical waveguide device and DP-QPSK modulator | Akira Oka, Kazuhiro Goi, Hiroyuki Kusaka | 2016-05-10 |
| 9110348 | Optical element and Mach-Zehnder optical waveguide element | Kazuhiro Goi | 2015-08-18 |
| 9008476 | Polarization conversion device | Akira Oka, Kazuhiro Goi, Hiroyuki Kusaka | 2015-04-14 |
| 8842288 | Phase shift interferometer | — | 2014-09-23 |
| 8824044 | Planar optical waveguide element, chromatic dispersion compensator, optical filter, optical resonator and methods for designing the element, chromatic dispersion compensator, optical filter and optical resonator | Ning Guan, Ken Sakuma | 2014-09-02 |
| 8699013 | Chromatic dispersion measurement device and chromatic dispersion measurement method for measuring the dispersion of light pulses | — | 2014-04-15 |
| 8542970 | Planar optical waveguide element, chromatic dispersion compensator, optical filter, optical resonator and methods for designing the element, chromatic dispersion compensator, optical filter and optical resonator | Ning Guan, Ken Sakuma | 2013-09-24 |
| 8404133 | Manufacturing method of planar optical waveguide device with grating structure | Ken Sakuma, Kazuhiro Goi, Yong Tsong Tan, Ning Guan, Mingbin Yu +2 more | 2013-03-26 |
| 8270789 | Optical waveguide element, chromatic dispersion compensator, methods for designing chromatic dispersion compensator, optical filter, methods for designing optical filter, optical resonator and methods for designing optical resonator | Ning Guan, Ken Sakuma | 2012-09-18 |
| 8270790 | Planar optical waveguide element, chromatic dispersion compensator, methods for designing chromatic dispersion compensator, optical filter, methods for designing optical filter, optical resonator and methods for designing optical resonator | Ning Guan, Ken Sakuma | 2012-09-18 |
| 8227178 | Manufacturing method of planar optical waveguide device with grating structure | Ken Sakuma, Kazuhiro Goi, Yong Tsong Tan, Ning Guan, Mingbin Yu +2 more | 2012-07-24 |
| 7515785 | Dispersion compensation element, optical crystal, dispersion compensation system, dispersion compensation method | Mitsuru Fujii | 2009-04-07 |