Issued Patents All Time
Showing 1–25 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11137546 | Optical element | Jun Ushida | 2021-10-05 |
| 10535786 | Photodetector having one-dimensional grating structure | Kenichiro Yashiki, Jun Ushida, Kazuhiko Kurata | 2020-01-14 |
| 10088299 | Optical measurement element for alignment in wafer-level testing and method for aligning an optical probe using the same | — | 2018-10-02 |
| 10025031 | Grating structure, and manufacturing method of grating coupler provided therewith | Jun Ushida | 2018-07-17 |
| 9971099 | Grating coupler with high optical coupling efficiency for SMF | Jun Ushida | 2018-05-15 |
| 9519115 | Optical circuit | Kenichiro Yashiki | 2016-12-13 |
| 8873906 | Optical conversion element and optical conversion element manufacturing method | Shigeru Nakamura | 2014-10-28 |
| 8705920 | Wavelength filter | — | 2014-04-22 |
| 8600204 | Optical control device | — | 2013-12-03 |
| 8554027 | Optical switch | — | 2013-10-08 |
| 8478088 | Optical switch and manufacturing method thereof | — | 2013-07-02 |
| 8355611 | Photonic crystal element | — | 2013-01-15 |
| 8355614 | Optical waveguide | — | 2013-01-15 |
| 8208776 | Optical control device | — | 2012-06-26 |
| 8170383 | Optical converter | — | 2012-05-01 |
| 8094978 | Polarization rotator and method for manufacturing the same | — | 2012-01-10 |
| 8027556 | Waveguide coupling structure | — | 2011-09-27 |
| 7263251 | Optical switch having photonic crystal structure | Masayuki Shirane | 2007-08-28 |
| 7158711 | Structure of photonic crystal | — | 2007-01-02 |
| 7058244 | Microchip, method of manufacturing microchip, and method of detecting compositions | Kazuhiro Iida, Tsuyoshi Shimoda | 2006-06-06 |
| 6937781 | Optical switch having photonic crystal structure | Masayuki Shirane | 2005-08-30 |
| 6795621 | Waveguide comprising a connection of a photonic-crystal line-defect-waveguide to a total reflection confinement waveguide | — | 2004-09-21 |
| 6621644 | Optical wavelength-demultiplexer with an improved optical lens | — | 2003-09-16 |
| 6558881 | Method of exposing a lattice pattern onto a photo-resist film | — | 2003-05-06 |
| 6466360 | Photonic crystal and its fabrication | — | 2002-10-15 |