Isomura; Akihiko

Patent Applications and Registrations

Patent applications and USPTO patent grants for Isomura; Akihiko.The latest application filed is for "optical add/drop multiplexer".

Company Profile

0.14.17

Isomura; Akihiko - Kawasaki JP
Isomura; Akihiko - Tokyo JP
Isomura; Akihiko - Machida JP
Isomura; Akihiko - Osaka 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 add/drop multiplexer Grant 8,131,152 - Akiyama , et al. March 6, 2	2012-03-06
Optical signal transmission system and optical signal transmission method Grant 7,933,522 - Rasmussen , et al. April 26, 2	2011-04-26
Optical Add/Drop Multiplexer App 20110038636 - AKIYAMA; Yuichi ; et al.	2011-02-17
Phase monitor apparatus, phase control apparatus and methods thereof for optical DQPSK receiver Grant 7,877,025 - Tao , et al. January 25, 2	2011-01-25
Interferometer for demodulating differential M-phase shift keying signal Grant 7,860,408 - Isomura , et al. December 28, 2	2010-12-28
Optical add/drop multiplexer Grant 7,853,148 - Akiyama , et al. December 14, 2	2010-12-14
Coherent optical receiver App 20100278528 - Isomura; Akihiko ; et al.	2010-11-04
Optical add/drop multiplexer Grant 7,792,428 - Akiyama , et al. September 7, 2	2010-09-07
Optical node and optical add/drop multiplexer Grant 7,711,270 - Ooi , et al. May 4, 2	2010-05-04
Optical reception apparatus compatible with DQPSK polarization multiplexing format Grant 7,689,074 - Isomura , et al. March 30, 2	2010-03-30
Phase control apparatus and optical DQPSK receiver Grant 7,684,713 - Terayama , et al. March 23, 2	2010-03-23
Phase monitor used in optical receiver Grant 7,676,162 - Isomura , et al. March 9, 2	2010-03-09
Optical signal degradation compensator Grant 7,616,900 - Isomura , et al. November 10, 2	2009-11-10
Polarization mode dispersion compensator and polarization mode dispersion compensating method Grant 7,613,366 - Rasmussen , et al. November 3, 2	2009-11-03
Optical reception apparatus compatible with DQPSK polarization multiplexing format App 20090196610 - Isomura; Akihiko ; et al.	2009-08-06
Optical Add/Drop Multiplexer App 20090148166 - AKIYAMA; Yuichi ; et al.	2009-06-11
Phase Monitor Apparatus, Phase Control Apparatus And Methods Thereof For Optical Dqpsk Receiver App 20090034967 - Tao; Zhenning ; et al.	2009-02-05
Polarization Scrambler Apparatus, Transmission Apparatus, Repeating Installation And Polarization Scrambler Method App 20080158644 - ISOMURA; Akihiko ; et al.	2008-07-03
Optical signal processing apparatus, optical signal transmission system and optical signal processing method App 20080107425 - Rasmussen; Jens ; et al.	2008-05-08
Phase monitor used in optical receiver App 20080056733 - Isomura; Akihiko ; et al.	2008-03-06
Phase control apparatus and optical DQPSK receiver App 20070292140 - Terayama; Yoshikazu ; et al.	2007-12-20
Optical transmitter Grant 7,277,608 - Isomura , et al. October 2, 2	2007-10-02
Interferometer for demodulating differential M-phase shift keying signal App 20070177151 - Isomura; Akihiko ; et al.	2007-08-02
Polarization mode dispersion compensator and polarization mode dispersion compensating method App 20070110451 - Rasmussen; Jens C. ; et al.	2007-05-17
Optical transmitter App 20070014513 - Isomura; Akihiko ; et al.	2007-01-18
Polarization mode dispersion compensator and method thereof App 20060245680 - Rasmussen; Jens C. ; et al.	2006-11-02
Optical node and optical add/drop multiplexer App 20060140625 - Ooi; Hiroki ; et al.	2006-06-29
Optical add/drop multiplexer App 20060034610 - Akiyama; Yuichi ; et al.	2006-02-16
Polarization mode dispersion compensation apparatus and method thereof in light wavelength division multiplexing transmission system App 20060013592 - Isomura; Akihiko ; et al.	2006-01-19
Optical signal degradation compensator App 20050201758 - Isomura, Akihiko ; et al.	2005-09-15
Fluororesin filter Grant 4,539,113 - Tomita , et al. September 3, 1	1985-09-03

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