Chikama; Terumi

Patent Applications and Registrations

Patent applications and USPTO patent grants for Chikama; Terumi.The latest application filed is for "multi-wavelength light amplifier".

Company Profile

0.33.20

Chikama; Terumi - Kawasaki JP
Chikama; Terumi - Kawasaki-shi JP
Chikama; Terumi - Zama JP
Chikama; Terumi - Kanagawa JP
Chikama, Terumi - Kawasaka-shi JP
Chikama; Terumi - Tokyo JP
Chikama; Terumi - Machida 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
Multi-wavelength light amplifier Grant 8,699,126 - Sugaya , et al. April 15, 2	2014-04-15
Multi-wavelength Light Amplifier App 20130045007 - SUGAYA; Yasushi ; et al.	2013-02-21
Multi-wavelength light amplifier Grant 8,320,040 - Sugaya , et al. November 27, 2	2012-11-27
Multi-wavelength Light Amplifier App 20110262140 - SUGAYA; Yasushi ; et al.	2011-10-27
Multi-wavelength light amplifier Grant 8,004,752 - Sugaya , et al. August 23, 2	2011-08-23
Multi-wavelength Light Amplifier App 20090225403 - SUGAYA; Yasushi ; et al.	2009-09-10
Multi-wavelength light amplifier Grant 7,474,459 - Sugaya , et al. January 6, 2	2009-01-06
Multi-wavelength Light Amplifier App 20070165299 - SUGAYA; Yasushi ; et al.	2007-07-19
Multi-wavelength light amplifier Grant 7,224,517 - Sugaya , et al. May 29, 2	2007-05-29
Light branching/inserting apparatus and light branching apparatus using wavelength selection filter Grant 7,142,785 - Otsuka , et al. November 28, 2	2006-11-28
Wavelength division multiplexing optical communication system Grant 7,088,922 - Tomofuji , et al. August 8, 2	2006-08-08
Optical amplifier and method for amplifying wavelength multiplexed transmission signal light Grant 6,891,662 - Sugaya , et al. May 10, 2	2005-05-10
Optical amplifier, excitation light source control method for use in optical amplifier, and optical amplifier control method Grant 6,873,457 - Kinoshita , et al. March 29, 2	2005-03-29
Gain equalizer which includes a plurality of optical filters for equalizing the gain of an optical amplifier Grant 6,807,376 - Shimojoh , et al. October 19, 2	2004-10-19
Optical sending apparatus and channel extension method Grant 6,738,181 - Nakamoto , et al. May 18, 2	2004-05-18
Optical transmitter and optical transmission system Grant 6,661,974 - Akiyama , et al. December 9, 2	2003-12-09
Wavelength division multiplexing optical communication system App 20030215233 - Tomofuji, Hiroaki ; et al.	2003-11-20
Remote Control Device Of Acousto-optic Tunable Filter And Optical Transmission System Containing Equalizer Using Acousto-optic Tunable Filter And Optical Transmission System Containing Optical Add/drop Multiplexer Using Acousto-optic Tunable Filter Grant 6,647,211 - Terahara , et al. November 11, 2	2003-11-11
Optical amplifier, excitation light source control method for use in optical amplifier, and optical amplifier control method Grant 6,631,026 - Kinoshita , et al. October 7, 2	2003-10-07
Optical amplifier, excitation light source control method for use in optical amplifier, and optical amplifier control method App 20030147123 - Kinoshita, Susumu ; et al.	2003-08-07
Light branching/inserting apparatus and light branching apparatus using wavelength selection filter App 20030138254 - Otsuka, Kazue ; et al.	2003-07-24
Optical transmission apparatus, optical transmission system, and optical terminal station Grant 6,583,900 - Onaka , et al. June 24, 2	2003-06-24
Optical amplifier excitation light source control method for use in optical amplifier and optical amplifier control method Grant 6,542,291 - Kinoshita , et al. April 1, 2	2003-04-01
Optical amplifier, excitation light source control method for use in optical amplifier, and optical amplifier control method App 20030002139 - Kinoshita, Susumu ; et al.	2003-01-02
Multi-wavelength light amplifier App 20030002140 - Sugaya, Yasushi ; et al.	2003-01-02
Optical amplifier Grant 6,496,300 - Kinoshita , et al. December 17, 2	2002-12-17
Optical transmission apparatus, optical transmission system, and optical terminal station App 20020101633 - Onaka, Hiroshi ; et al.	2002-08-01
Remote control device of acousto-optic tunable filter and optical transmission system containing equalizer using acousto-optic tunable filter and optical transmission system containing optical add/drop multiplexer using acousto-optic tunable filter App 20020097467 - Terahara, Takafumi ; et al.	2002-07-25
Multi-wavelength light amplifier App 20020093726 - Sugaya, Yasushi ; et al.	2002-07-18
Optical amplifier and method for amplifying wavelength multiplexed transmission signal light App 20020093728 - Sugaya, Yasushi ; et al.	2002-07-18
Optical amplifier for use in optical communications equipment Grant 6,373,623 - Ohshima , et al. April 16, 2	2002-04-16
Gain equalizer which includes a plurality of optical filters for equalizing the gain of an optical amplifier App 20020033995 - Shimojoh, Naomasa ; et al.	2002-03-21
Optical cross connect unit, optical add-drop multiplexer, light source unit, and adding unit App 20020030869 - Okazaki, Kazue ; et al.	2002-03-14
Optical Amplifier App 20020027703 - KINOSHITA, SUSUMU ; et al.	2002-03-07
Optical transmission apparatus, optical transmission system, and optical terminal station Grant 6,351,323 - Onaka , et al. February 26, 2	2002-02-26
Gain equalizer which includes a plurality of optical filters for equalizing the gain of an optical amplifier Grant 6,344,914 - Shimojoh , et al. February 5, 2	2002-02-05
Optical amplifier for use in optical communications equipment App 20010050805 - Ohshima, Chihiro ; et al.	2001-12-13
Multi-wavelength light amplifier App 20010046084 - Sugaya, Yasushi ; et al.	2001-11-29
Multi-wavelength light amplifier App 20010026395 - Sugaya, Yasushi ; et al.	2001-10-04
Optical transmission device for bi-directional optical communication Grant 6,278,536 - Kai , et al. August 21, 2	2001-08-21
Optical amplifier for use in optical communications equipment App 20010008459 - Ohshima, Chihiro ; et al.	2001-07-19
Multi-wavelength light amplifier Grant 6,055,092 - Sugaya , et al. April 25, 2	2000-04-25
Remotely pumping type multi-wavelength light transmission system Grant 5,903,385 - Sugaya , et al. May 11, 1	1999-05-11
Optical amplifying apparatus Grant 5,737,118 - Sugaya , et al. April 7, 1	1998-04-07
Optical transmission method and apparatus and optical amplification method and apparatus for optical communication system Grant 5,729,372 - Terahara , et al. March 17, 1	1998-03-17
Light signal reception apparatus having an improved light surge eliminating function Grant 5,701,195 - Chikama December 23, 1	1997-12-23
Heterodyne receiver provided with a frequency discriminator for coherent lightwave communications Grant 5,568,305 - Naito , et al. October 22, 1	1996-10-22
Optical transmission method and apparatus and optical amplification method and apparatus for optical communication system Grant 5,539,566 - Terahara , et al. July 23, 1	1996-07-23
Demodulator and a polarization diversity receiver for coherent optical communication provided with the demodulator Grant 5,253,097 - Naito , et al. October 12, 1	1993-10-12
Direct modulation phase shift keying (DM-PSK) transmission system Grant 5,228,043 - Naito , et al. July 13, 1	1993-07-13
Direct modulation phase-shift-keying system and method Grant 5,050,176 - Naito , et al. September 17, 1	1991-09-17
Dual balanced optical signal receiver Grant 5,003,626 - Kuwahara , et al. March 26, 1	1991-03-26
Polarization diversity optical receiver for coherent optical communication Grant 4,965,858 - Naito , et al. October 23, 1	1990-10-23

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