Takeyama; Tomoaki
Patent Applications and Registrations
Patent applications and USPTO patent grants for Takeyama; Tomoaki.The latest application filed is for "controller and control method for raman amplifier".
Company Profile
5.45.43
- Takeyama; Tomoaki - Yokohama JP
- Takeyama; Tomoaki - Kawasaki JP
Patent Activity
| Patent | Date |
|---|---|
| Transmission device and transmission system Grant 11,294,258 - Takeyama April 5, 2 | 2022-04-05 |
| Controller And Control Method For Raman Amplifier App 20220045755 - Shukunami; Norifumi ; et al. | 2022-02-10 |
| Transmitting apparatus and transmitting method Grant 11,153,014 - Sugamoto , et al. October 19, 2 | 2021-10-19 |
| Optical transmission system, optical transmission apparatus and transmission method Grant 11,063,684 - Karube , et al. July 13, 2 | 2021-07-13 |
| Network system, management device, and management method Grant 11,018,763 - Tsuzuki , et al. May 25, 2 | 2021-05-25 |
| Transmission apparatus and transmission method Grant 10,972,188 - Kato , et al. April 6, 2 | 2021-04-06 |
| Network System, Management Device, And Management Method App 20210067245 - Tsuzuki; Tatsuya ; et al. | 2021-03-04 |
| Transmitting Apparatus And Transmitting Method App 20200403707 - Sugamoto; Masamichi ; et al. | 2020-12-24 |
| Transmission Device And Transmission System App 20200371292 - Takeyama; Tomoaki | 2020-11-26 |
| Wavelength conversion apparatus, optical parametric amplifier, transmission apparatus, and optical transmission system Grant 10,782,589 - Takeyama , et al. Sept | 2020-09-22 |
| Wavelength conversion device, transmission device, and transmission system Grant 10,754,224 - Takeyama A | 2020-08-25 |
| Optical transfer system, control device, optical transfer method, and transfer device Grant 10,644,823 - Yuki , et al. | 2020-05-05 |
| Wavelength converter, wavelength conversion method, and transmission device Grant 10,634,974 - Shukunami , et al. | 2020-04-28 |
| Transmission Device And Transmission Method App 20200059313 - Kato; Tomoyuki ; et al. | 2020-02-20 |
| Optical Transfer System, Control Device, Optical Transfer Method, And Transfer Device App 20190386767 - YUKI; Masahiro ; et al. | 2019-12-19 |
| Wavelength Conversion Device, Transmission Device, And Transmission System App 20190353978 - TAKEYAMA; Tomoaki | 2019-11-21 |
| Wavelength Converter, Wavelength Conversion Method, And Transmission Device App 20190353980 - Shukunami; Norifumi ; et al. | 2019-11-21 |
| Wavelength Conversion Apparatus, Optical Parametric Amplifier, Transmission Apparatus, And Optical Transmission System App 20190346738 - TAKEYAMA; Tomoaki ; et al. | 2019-11-14 |
| Transmission Apparatus And Transmission Method App 20190305852 - Kato; Tomoyuki ; et al. | 2019-10-03 |
| Optical Transmission System, Optical Transmission Apparatus And Transmission Method App 20190222345 - KARUBE; Ryo ; et al. | 2019-07-18 |
| Optical transmission control device and optical signal wavelength determination method Grant 9,991,985 - Tsuzuki , et al. June 5, 2 | 2018-06-05 |
| Optical amplifier, optical transmission apparatus, and optical repeating apparatus Grant 9,887,778 - Kachita , et al. February 6, 2 | 2018-02-06 |
| Optical Transmission Control Device And Optical Signal Wavelength Determination Method App 20170338905 - Tsuzuki; Tatsuya ; et al. | 2017-11-23 |
| Optical amplifier with loss adjustment unit based on gain Grant 9,520,694 - Kachita , et al. December 13, 2 | 2016-12-13 |
| Optical transmission system and optical transmission device Grant 9,509,370 - Takeyama November 29, 2 | 2016-11-29 |
| Optical Amplifier, Optical Transmission Apparatus, And Optical Repeating Apparatus App 20160315708 - Kachita; Yoshito ; et al. | 2016-10-27 |
| Optical Amplifier App 20150280391 - KACHITA; Yoshito ; et al. | 2015-10-01 |
| Raman fiber amplifier and its control via path switching Grant 9,042,005 - Muro , et al. May 26, 2 | 2015-05-26 |
| Optical Transmission System And Optical Transmission Device App 20150125145 - TAKEYAMA; Tomoaki | 2015-05-07 |
| Control circuit, control method, and transmission system Grant 9,001,413 - Takeyama April 7, 2 | 2015-04-07 |
| Optical amplifying device and optical transmission system Grant 8,922,876 - Takeyama December 30, 2 | 2014-12-30 |
| Raman amplifier Grant 8,879,145 - Takeyama , et al. November 4, 2 | 2014-11-04 |
| Optical amplifier and transmission system Grant 8,854,727 - Takeyama , et al. October 7, 2 | 2014-10-07 |
| Raman Amplifier App 20140146385 - TAKEYAMA; Tomoaki ; et al. | 2014-05-29 |
| Optical Amplifier And Transmission System App 20140139906 - Takeyama; Tomoaki ; et al. | 2014-05-22 |
| Amplifying Apparatus And Control Method App 20130329278 - MURO; Shinichirou ; et al. | 2013-12-12 |
| Control Circuit, Control Method, And Transmission System App 20130314768 - TAKEYAMA; Tomoaki | 2013-11-28 |
| Optical amplifying device, gain control method, optical transmission device, and gain control device Grant 8,553,318 - Takeyama October 8, 2 | 2013-10-08 |
| Optical amplifier Grant 8,498,045 - Takeyama July 30, 2 | 2013-07-30 |
| Optical Amplifying Device And Optical Transmission System App 20130121689 - TAKEYAMA; Tomoaki | 2013-05-16 |
| Optical amplifier and optical amplification method Grant 8,390,923 - Takeyama March 5, 2 | 2013-03-05 |
| Optical amplifier Grant 8,379,299 - Takeyama , et al. February 19, 2 | 2013-02-19 |
| Optical amplifier and method for suppressing polarization dependent gain of optical amplifier Grant 8,363,309 - Takeyama January 29, 2 | 2013-01-29 |
| Optical amplifier Grant 8,351,112 - Takeyama January 8, 2 | 2013-01-08 |
| Optical amplifier using delayed phase matching fiber Grant 8,194,309 - Shimizu , et al. June 5, 2 | 2012-06-05 |
| Optical Amplification Device, Communication System, And Amplification Method App 20120045212 - TAKEYAMA; Tomoaki | 2012-02-23 |
| Optical transmission apparatus and optical attenuation amount control method Grant 8,116,626 - Takeyama , et al. February 14, 2 | 2012-02-14 |
| Optical amplifier Grant 8,077,383 - Takeyama , et al. December 13, 2 | 2011-12-13 |
| Raman amplifier and excitation light source used thereof Grant 8,027,082 - Muro , et al. September 27, 2 | 2011-09-27 |
| Photo-detecting apparatus and photo-detecting method Grant 8,026,538 - Takeyama , et al. September 27, 2 | 2011-09-27 |
| Optical Amplifying Device, Gain Control Method, Optical Transmission Device, And Gain Control Device App 20110228381 - TAKEYAMA; Tomoaki | 2011-09-22 |
| Optical Amplifier App 20110199672 - TAKEYAMA; Tomoaki | 2011-08-18 |
| Optical transmission system Grant 7,990,608 - Takeyama , et al. August 2, 2 | 2011-08-02 |
| Optical Amplifier And Optical Amplification Method App 20110063721 - TAKEYAMA; Tomoaki | 2011-03-17 |
| Optical Amplifier App 20110058251 - TAKEYAMA; Tomoaki | 2011-03-10 |
| Optical Amplifier And Method For Suppressing Polarization Dependent Gain Of Optical Amplifier App 20100315701 - TAKEYAMA; Tomoaki | 2010-12-16 |
| Optical Amplifier App 20100245988 - TAKEYAMA; Tomoaki ; et al. | 2010-09-30 |
| Optical amplifier Grant 7,643,206 - Takeyama , et al. January 5, 2 | 2010-01-05 |
| Optical transmission apparatus and optical attenuation amount control method App 20090297143 - Takeyama; Tomoaki ; et al. | 2009-12-03 |
| Optical transmission apparatus Grant 7,616,848 - Takeyama , et al. November 10, 2 | 2009-11-10 |
| Photo-detecting apparatus and photo-detecting method App 20090206437 - Takeyama; Tomoaki ; et al. | 2009-08-20 |
| Optical Amplifier App 20080239467 - TAKEYAMA; Tomoaki ; et al. | 2008-10-02 |
| Raman Amplifier And Excitation Light Source Used Thereof App 20080158657 - Muro; Shinichirou ; et al. | 2008-07-03 |
| Optical Amplifier And Method Of Controlling The Same App 20080074731 - Takeyama; Tomoaki ; et al. | 2008-03-27 |
| Wavelength division multiplexed optical amplifier Grant 7,330,303 - Sato , et al. February 12, 2 | 2008-02-12 |
| Optical transmission apparatus App 20070274725 - Takeyama; Tomoaki ; et al. | 2007-11-29 |
| Optical amplifier App 20070229941 - Takeyama; Tomoaki ; et al. | 2007-10-04 |
| Optical amplifier Grant 7,236,294 - Takeyama , et al. June 26, 2 | 2007-06-26 |
| Optical amplifier using delayed phase matching fiber App 20070041084 - Shimizu; Takashi ; et al. | 2007-02-22 |
| Variable dispersion compensator utilizing wavelength conversion Grant 7,139,453 - Takeyama , et al. November 21, 2 | 2006-11-21 |
| Optical amplifier using delayed phase matching fiber Grant 7,136,219 - Shimizu , et al. November 14, 2 | 2006-11-14 |
| Optical amplifier Grant 7,085,043 - Takeyama , et al. August 1, 2 | 2006-08-01 |
| Optical Amplifier App 20060087723 - Takeyama; Tomoaki ; et al. | 2006-04-27 |
| Optical amplifier using delayed phase matching fiber App 20050179992 - Shimizu, Takashi ; et al. | 2005-08-18 |
| Optical amplifier App 20050146782 - Takeyama, Tomoaki ; et al. | 2005-07-07 |
| Wavelength division multiplexed optical amplifier App 20050078358 - Sato, Takashi ; et al. | 2005-04-14 |
| Variable dispersion compensator utilizing wavelength conversion App 20040258352 - Takeyama, Tomoaki ; et al. | 2004-12-23 |
| Optical fiber amplifier Grant 6,738,182 - Inagaki , et al. May 18, 2 | 2004-05-18 |
| Dispersion compensating optical fiber Grant 6,625,362 - Inagaki , et al. September 23, 2 | 2003-09-23 |
| Optical fiber amplifier App 20020141045 - Inagaki, Shinya ; et al. | 2002-10-03 |
| Dispersion compensating optical fiber App 20020006256 - Inagaki, Shinya ; et al. | 2002-01-17 |
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