Tokushima; Masatoshi
Patent Applications and Registrations
Patent applications and USPTO patent grants for Tokushima; Masatoshi.The latest application filed is for "optical element".
Company Profile
2.31.27
- Tokushima; Masatoshi - Tokyo JP
- Tokushima; Masatoshi - Ibaraki N/A JP
- Tokushima; Masatoshi - Minato-ku JP
Patent Activity
| Patent | Date |
|---|---|
| Optical element Grant 11,137,546 - Tokushima , et al. October 5, 2 | 2021-10-05 |
| Optical Element App 20200264375 - TOKUSHIMA; Masatoshi ; et al. | 2020-08-20 |
| Photodetector having one-dimensional grating structure Grant 10,535,786 - Yashiki , et al. Ja | 2020-01-14 |
| Optical measurement element for alignment in wafer-level testing and method for aligning an optical probe using the same Grant 10,088,299 - Tokushima October 2, 2 | 2018-10-02 |
| Grating structure, and manufacturing method of grating coupler provided therewith Grant 10,025,031 - Tokushima , et al. July 17, 2 | 2018-07-17 |
| Grating coupler with high optical coupling efficiency for SMF Grant 9,971,099 - Tokushima , et al. May 15, 2 | 2018-05-15 |
| Grating Structure, And Manufacturing Method Of Grating Coupler Provided Therewith App 20180128975 - Tokushima; Masatoshi ; et al. | 2018-05-10 |
| Grating Coupler With High Optical Coupling Efficiency For Smf App 20180074264 - TOKUSHIMA; Masatoshi ; et al. | 2018-03-15 |
| Optical Measurement Element For Alignment In Wafer-level Testing And Method For Aligning An Optical Probe Using The Same App 20180010906 - TOKUSHIMA; Masatoshi | 2018-01-11 |
| Light Receiving Element App 20170345952 - Yashiki; Kenichiro ; et al. | 2017-11-30 |
| Optical circuit Grant 9,519,115 - Yashiki , et al. December 13, 2 | 2016-12-13 |
| Optical Circuit App 20160054529 - Yashiki; Kenichiro ; et al. | 2016-02-25 |
| Optical conversion element and optical conversion element manufacturing method Grant 8,873,906 - Tokushima , et al. October 28, 2 | 2014-10-28 |
| Wavelength filter Grant 8,705,920 - Tokushima April 22, 2 | 2014-04-22 |
| Optical control device Grant 8,600,204 - Tokushima December 3, 2 | 2013-12-03 |
| Optical switch Grant 8,554,027 - Tokushima October 8, 2 | 2013-10-08 |
| Optical Conversion Element And Optical Conversion Element Manufacturing Method App 20130188910 - Tokushima; Masatoshi ; et al. | 2013-07-25 |
| Optical switch and manufacturing method thereof Grant 8,478,088 - Tokushima July 2, 2 | 2013-07-02 |
| Optical waveguide Grant 8,355,614 - Tokushima January 15, 2 | 2013-01-15 |
| Photonic crystal element Grant 8,355,611 - Tokushima January 15, 2 | 2013-01-15 |
| Optical Control Device App 20120195565 - Tokushima; Masatoshi | 2012-08-02 |
| Optical control device Grant 8,208,776 - Tokushima June 26, 2 | 2012-06-26 |
| Optical converter Grant 8,170,383 - Tokushima May 1, 2 | 2012-05-01 |
| Polarization rotator and method for manufacturing the same Grant 8,094,978 - Tokushima January 10, 2 | 2012-01-10 |
| Wavelength Filter App 20110293217 - Tokushima; Masatoshi | 2011-12-01 |
| Optical Switch App 20110255826 - Tokushima; Masatoshi | 2011-10-20 |
| Waveguide coupling structure Grant 8,027,556 - Tokushima September 27, 2 | 2011-09-27 |
| Optical Waveguide App 20110008009 - Tokushima; Masatoshi | 2011-01-13 |
| Optical Switch And Manufacturing Method Thereof App 20110008000 - TOKUSHIMA; Masatoshi | 2011-01-13 |
| Optical Switch And Method Of Manufacturing The Same App 20110002581 - Tokushima; Masatoshi | 2011-01-06 |
| Photonic Crystal Element App 20100278487 - Tokushima; Masatoshi | 2010-11-04 |
| Waveguide Coupling Structure App 20100226609 - Tokushima; Masatoshi | 2010-09-09 |
| Optical Converter And Method For Manufacturing The Same App 20100067846 - Tokushima; Masatoshi | 2010-03-18 |
| Optical Control Device App 20100014821 - Tokushima; Masatoshi | 2010-01-21 |
| Polarization Rotator And Method For Manufacturing The Same App 20100002989 - Tokushima; Masatoshi | 2010-01-07 |
| Optical switch having photonic crystal structure Grant 7,263,251 - Shirane , et al. August 28, 2 | 2007-08-28 |
| Structure of photonic crystal Grant 7,158,711 - Tokushima January 2, 2 | 2007-01-02 |
| Microchip, method of manufacturing microchip, and method of detecting compositions Grant 7,058,244 - Iida , et al. June 6, 2 | 2006-06-06 |
| Structure of photonic crystal App 20060104586 - Tokushima; Masatoshi | 2006-05-18 |
| Optical switch having photonic crystal structure App 20050249455 - Shirane, Masayuki ; et al. | 2005-11-10 |
| Optical switch having photonic crystal structure Grant 6,937,781 - Shirane , et al. August 30, 2 | 2005-08-30 |
| Microchip, method of manufacturing microchip, and method of detecting compositions App 20050175273 - Iida, Kazuhiro ; et al. | 2005-08-11 |
| Waveguide comprising a connection of a photonic-crystal line-defect-waveguide to a total reflection confinement waveguide Grant 6,795,621 - Tokushima September 21, 2 | 2004-09-21 |
| Optical wavelength-demultiplexer with an improved optical lens Grant 6,621,644 - Tokushima September 16, 2 | 2003-09-16 |
| Optical wavelength-demultiplexer with an improved optical lens App 20030035227 - Tokushima, Masatoshi | 2003-02-20 |
| Waveguide App 20020191933 - Tokushima, Masatoshi | 2002-12-19 |
| Method of exposing a lattice pattern onto a photo-resist film App 20020172901 - Tokushima, Masatoshi | 2002-11-21 |
| Optical switch having photonic crystal structure App 20020146196 - Shirane, Masayuki ; et al. | 2002-10-10 |
| Photonic crystal and its fabrication App 20020051275 - Tokushima, Masatoshi | 2002-05-02 |
| Photonic crystal Grant 6,366,392 - Tokushima April 2, 2 | 2002-04-02 |
uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.
While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.
All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.
| 