Izumi; Futoshi

Patent Applications and Registrations

Patent applications and USPTO patent grants for Izumi; Futoshi.The latest application filed is for "probe generator, optical transmission apparatus and probe generating method".

Company Profile

0.46.46

Izumi; Futoshi - Kawasaki JP
Izumi; Futoshi - Richardson TX US
Izumi; Futoshi - Kawasaki-shi JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Optical logic circuit Grant 10,268,101 - Izumi	2019-04-23
Frequency conversion device, wavelength multiplex device and frequency conversion method Grant 9,866,344 - Izumi January 9, 2	2018-01-09
Probe generator, optical transmission apparatus and probe generating method Grant 9,831,944 - Izumi November 28, 2	2017-11-28
Optical receiver, optical signal processing method, and optical transmission system Grant 9,735,916 - Izumi August 15, 2	2017-08-15
Optical transceiver, optical transmission system, and light source output monitoring method Grant 9,490,896 - Izumi November 8, 2	2016-11-08
Probe Generator, Optical Transmission Apparatus And Probe Generating Method App 20160315699 - IZUMI; Futoshi	2016-10-27
Optical Logic Circuit App 20160161827 - IZUMI; Futoshi	2016-06-09
Optical limiter, optical logic circuit, comparator, digital converter, optical transmission apparatus and optical processing method Grant 9,354,483 - Izumi May 31, 2	2016-05-31
Optical Transceiver, Optical Transmission System, And Light Source Output Monitoring Method App 20160142136 - IZUMI; Futoshi	2016-05-19
Optical branching device, optical amplification apparatus, and optical amplification method Grant 9,306,362 - Izumi April 5, 2	2016-04-05
Frequency Conversion Device, Wavelength Multiplex Device And Frequency Conversion Method App 20150318947 - IZUMI; Futoshi	2015-11-05
Optical Branching Device, Optical Amplification Apparatus, And Optical Amplification Method App 20150288130 - IZUMI; Futoshi	2015-10-08
Optical Limiter, Optical Logic Circuit, Comparator, Digital Converter, Optical Transmission Apparatus And Optical Processing Method App 20150168804 - IZUMI; Futoshi	2015-06-18
Optical Receiver, Optical Signal Processing Method, And Optical Transmission System App 20150131996 - IZUMI; Futoshi	2015-05-14
System and method for reducing interference of a polarization multiplexed signal Grant 8,958,702 - Izumi February 17, 2	2015-02-17
Transmission-path-type specifying apparatus and transmission-path-type specifying method Grant 8,818,189 - Izumi August 26, 2	2014-08-26
Optical communication system, optical receiving terminal, and optical signal fault detection method Grant 8,682,157 - Izumi March 25, 2	2014-03-25
Optical signal demultiplexing device and optical signal demultiplexing method Grant 8,538,268 - Izumi September 17, 2	2013-09-17
Optical signal transmission control apparatus and optical signal transmission control method Grant 8,515,288 - Izumi August 20, 2	2013-08-20
Optical transmission apparatus Grant 8,401,386 - Izumi March 19, 2	2013-03-19
Optical amplifier Grant 8,279,518 - Izumi October 2, 2	2012-10-02
System And Method For Reducing Interference Of A Polarization Multiplexed Signal App 20120237206 - Izumi; Futoshi	2012-09-20
Transmission system Grant 8,265,063 - Izumi September 11, 2	2012-09-11
Optical Signal Demultiplexing Device And Optical Signal Demultiplexing Method App 20120063784 - IZUMI; Futoshi	2012-03-15
Optical transmission system using Raman amplifier and controlling method thereof Grant 8,031,395 - Izumi October 4, 2	2011-10-04
Backboard transmission method, backboard transmission apparatus, and substrate unit Grant 7,974,799 - Izumi July 5, 2	2011-07-05
Frame transmission apparatus Grant 7,920,568 - Izumi April 5, 2	2011-04-05
Optical transmission apparatus Grant 7,853,146 - Takakuwa , et al. December 14, 2	2010-12-14
Optical communication system, method, and optical transmitting station Grant 7,853,151 - Izumi December 14, 2	2010-12-14
Optical Transmission Apparatus App 20100260499 - IZUMI; Futoshi	2010-10-14
Printed circuit board, and backplane data transmission method Grant 7,812,618 - Izumi October 12, 2	2010-10-12
Optical Communication System, Optical Receiving Terminal, And Optical Signal Fault Detection Method App 20100142940 - IZUMI; Futoshi	2010-06-10
Wavelength division multiplexing transmission device Grant 7,725,040 - Izumi May 25, 2	2010-05-25
Optical Amplifier App 20100118387 - IZUMI; Futoshi	2010-05-13
Transmission-path-type specifying apparatus and transmission-path-type specifying method App 20090297154 - Izumi; Futoshi	2009-12-03
Dispersion compensating method and dispersion compensating apparatus Grant 7,627,207 - Yoshimoto , et al. December 1, 2	2009-12-01
Wavelength division multiplexing transmission apparatus using a multiple wavelength light source Grant 7,623,787 - Izumi November 24, 2	2009-11-24
Wavelength division-multiplex system Grant 7,623,794 - Takakuwa , et al. November 24, 2	2009-11-24
Optical signal multiplexing device and optical signal multiplexing method Grant 7,623,791 - Izumi November 24, 2	2009-11-24
Printed Circuit Board, And Backplane Data Transmission Method App 20090284299 - Izumi; Futoshi	2009-11-19
Optical signal transmission control apparatus and optical signal transmission control method App 20090269079 - Izumi; Futoshi	2009-10-29
Printed circuit board, and backplane data transmission method Grant 7,583,091 - Izumi September 1, 2	2009-09-01
Optical transmission system using raman amplifier and controlling method thereof App 20090207482 - Izumi; Futoshi	2009-08-20
Optical Signal Transmission Control Apparatus and Optical Signal Transmission Control Method App 20090136239 - Izumi; Futoshi	2009-05-28
Wavelength-division multiplex communication system and apparatus Grant 7,505,685 - Takanashi , et al. March 17, 2	2009-03-17
Optical signal demultiplexing device and optical signal demultiplexing method App 20080285976 - Izumi; Futoshi	2008-11-20
Dispersion compensating method and dispersion compensating apparatus Grant 7,450,856 - Yoshimoto , et al. November 11, 2	2008-11-11
Frame Transmission Apparatus App 20080205303 - Izumi; Futoshi	2008-08-28
Optical signal multiplexing device and optical signal multiplexing method App 20080181610 - Izumi; Futoshi	2008-07-31
Optical communication system Grant 7,376,348 - Hasuo , et al. May 20, 2	2008-05-20
Printed circuit board, and backplane data transmission method App 20080042659 - Izumi; Futoshi	2008-02-21
Optical spatial communication method, optical transmission apparatus, optical reception apparatus, and optical spatial communication system App 20080002986 - Izumi; Futoshi	2008-01-03
Switching control device for wavelength-division multiplexing optical signal Grant 7,313,327 - Fujita , et al. December 25, 2	2007-12-25
Optical communication system App 20070264013 - Hasuo; Koji ; et al.	2007-11-15
Transmission system App 20070223496 - Izumi; Futoshi	2007-09-27
Backboard transmission method, backboard transmission apparatus, and substrate unit App 20070192051 - Izumi; Futoshi	2007-08-16
Dispersion Compensating Method And Dispersion Compensating Apparatus App 20070177878 - Yoshimoto; Masahiro ; et al.	2007-08-02
Optical communication system Grant 7,242,865 - Hasuo , et al. July 10, 2	2007-07-10
Wavelength multiplexing method and an apparatus thereof Grant 7,209,661 - Mori , et al. April 24, 2	2007-04-24
Optical transmission apparatus App 20070036549 - Takakuwa; Makoto ; et al.	2007-02-15
Parallel signal automatic phase adjusting circuit Grant 7,139,347 - Fujita , et al. November 21, 2	2006-11-21
Signal transmission method in WDM transmission system, and WDM terminal, optical add-drop multiplexer node, and network element used in the same system Grant 7,139,484 - Kurumida , et al. November 21, 2	2006-11-21
Optical communication system, transmission deterioration compensation method, optical transmission system, and optical receiver system App 20060222371 - Izumi; Futoshi	2006-10-05
Wavelength division multiplexing transmission device App 20060216026 - Izumi; Futoshi	2006-09-28
Wavelength division multiplexing transmission apparatus using a multiple wavelength light source App 20060216027 - Izumi; Futoshi	2006-09-28
Dispersion compensating method and dispersion compensating apparatus App 20060210220 - Yoshimoto; Masahiro ; et al.	2006-09-21
Frame transmitting apparatus and frame receiving apparatus App 20060098686 - Takakuwa; Makoto ; et al.	2006-05-11
Dispersion compensating method and dispersion compensating apparatus App 20050213986 - Yoshimoto, Masahiro ; et al.	2005-09-29
Wavelength division-multiplex system App 20050201755 - Takakuwa, Makoto ; et al.	2005-09-15
Wavelength division multiplexing optical communication system and wavelength division multiplexing optical communication method Grant 6,934,479 - Sakamoto , et al. August 23, 2	2005-08-23
Switching control device for wavelength-division multiplexing optical signal App 20050135807 - Fujita, Takehiro ; et al.	2005-06-23
Raman excitation control method and optical transmission system using the same App 20050057794 - Ohtani, Toshihiro ; et al.	2005-03-17
Method of measuring wavelength dispersion amount and optical transmission system Grant 6,864,968 - Mori , et al. March 8, 2	2005-03-08
Optical communication system App 20040247312 - Hasuo, Koji ; et al.	2004-12-09
Wavelength-division multiplex communication system and apparatus App 20040213566 - Takanashi, Takako ; et al.	2004-10-28
Wavelength multiplexing method and an apparatus thereof App 20040081421 - Mori, Shota ; et al.	2004-04-29
Raman excitation control method and optical transmission system using the same Grant 6,674,567 - Ohtani , et al. January 6, 2	2004-01-06
Signal transmission method in WDM transmission system, and WDM terminal, optical add-drop multiplexer node, and network element used in the same system App 20030185567 - Kurumida, Junya ; et al.	2003-10-02
Optical transmitter, optical repeater, optical receiver and optical transmission method App 20030170028 - Mori, Shota ; et al.	2003-09-11
Method of measuring wavelength dispersion amount and optical transmission system App 20030071985 - Mori, Shota ; et al.	2003-04-17
Parallel signal automatic phase adjusting circuit App 20020191723 - Fujita, Takehiro ; et al.	2002-12-19
Raman excitation control method and optical transmission system using the same App 20020149841 - Ohtani, Toshihiro ; et al.	2002-10-17
Optical transmission device and wavelength-multiplexed optical transmission system Grant 6,449,070 - Izumi September 10, 2	2002-09-10
Optical amplifier App 20020114060 - Kobayashi, Hideki ; et al.	2002-08-22
Wavelength division multiplexing optical communication system and wavelength division multiplexing optical communication method App 20020048062 - Sakamoto, Takeshi ; et al.	2002-04-25
Apparatus and method for controlling a wavelength-multiplex optical amplifier Grant 6,275,330 - Izumi August 14, 2	2001-08-14

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.