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Kensuke Ogawa
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Sakura-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Electro-optic waveguide device and optical module
Patent number
10,921,517
Issue date
Feb 16, 2021
Lumentum Japan, Inc.
Kensuke Ogawa
G02 - OPTICS
Information
Patent Grant
Optical waveguide element
Patent number
10,627,572
Issue date
Apr 21, 2020
Fujikura Ltd.
Kensuke Ogawa
G02 - OPTICS
Information
Patent Grant
Optical receiver circuit and adjustment method for same
Patent number
10,014,953
Issue date
Jul 3, 2018
Fujikura Ltd.
Kensuke Ogawa
G02 - OPTICS
Information
Patent Grant
Optical waveguide element
Patent number
9,927,637
Issue date
Mar 27, 2018
Fujikura Ltd.
Kensuke Ogawa
G02 - OPTICS
Information
Patent Grant
Optical waveguide device and method of manufacturing the same
Patent number
9,880,404
Issue date
Jan 30, 2018
Fujikura Ltd.
Kensuke Ogawa
G02 - OPTICS
Information
Patent Grant
Optical waveguide element, light-receiving device, optical communic...
Patent number
9,857,533
Issue date
Jan 2, 2018
Fujikura Ltd.
Hiroyuki Kusaka
G02 - OPTICS
Information
Patent Grant
Optical waveguide device having a light absorber for split out modes
Patent number
9,857,534
Issue date
Jan 2, 2018
Fujikura Ltd.
Hiroyuki Kusaka
G02 - OPTICS
Information
Patent Grant
Optical modulation device
Patent number
9,817,294
Issue date
Nov 14, 2017
Fujikura Ltd.
Kazuhiro Goi
G02 - OPTICS
Information
Patent Grant
Optical integrated circuit
Patent number
9,726,822
Issue date
Aug 8, 2017
Fujikura Ltd.
Kensuke Ogawa
G02 - OPTICS
Information
Patent Grant
High-order polarization conversion device, optical waveguide device...
Patent number
9,557,482
Issue date
Jan 31, 2017
Fujikura Ltd.
Akira Oka
G02 - OPTICS
Information
Patent Grant
Polarization conversion element
Patent number
9,529,151
Issue date
Dec 27, 2016
Fujikura Ltd.
Kazuhiro Goi
G02 - OPTICS
Information
Patent Grant
Optical waveguide element and optical modulator
Patent number
9,448,425
Issue date
Sep 20, 2016
Fujikura Ltd.
Kensuke Ogawa
G02 - OPTICS
Information
Patent Grant
Planar optical waveguide device and DP-QPSK modulator
Patent number
9,335,472
Issue date
May 10, 2016
Fujikura Ltd.
Akira Oka
G02 - OPTICS
Information
Patent Grant
Optical element and Mach-Zehnder optical waveguide element
Patent number
9,110,348
Issue date
Aug 18, 2015
Fujikura, Ltd.
Kazuhiro Goi
G02 - OPTICS
Information
Patent Grant
Polarization conversion device
Patent number
9,008,476
Issue date
Apr 14, 2015
Fujikura Ltd.
Akira Oka
G02 - OPTICS
Information
Patent Grant
Phase shift interferometer
Patent number
8,842,288
Issue date
Sep 23, 2014
Fujikura Ltd.
Kensuke Ogawa
G01 - MEASURING TESTING
Information
Patent Grant
Planar optical waveguide element, chromatic dispersion compensator,...
Patent number
8,824,044
Issue date
Sep 2, 2014
Fujikura Ltd.
Kensuke Ogawa
G02 - OPTICS
Information
Patent Grant
Chromatic dispersion measurement device and chromatic dispersion me...
Patent number
8,699,013
Issue date
Apr 15, 2014
Fujikura Ltd.
Kensuke Ogawa
G01 - MEASURING TESTING
Information
Patent Grant
Planar optical waveguide element, chromatic dispersion compensator,...
Patent number
8,542,970
Issue date
Sep 24, 2013
Fujikura Ltd.
Kensuke Ogawa
G02 - OPTICS
Information
Patent Grant
Manufacturing method of planar optical waveguide device with gratin...
Patent number
8,404,133
Issue date
Mar 26, 2013
Fujikura Ltd.
Ken Sakuma
G02 - OPTICS
Information
Patent Grant
Optical waveguide element, chromatic dispersion compensator, method...
Patent number
8,270,789
Issue date
Sep 18, 2012
Fujikura Ltd.
Kensuke Ogawa
G02 - OPTICS
Information
Patent Grant
Planar optical waveguide element, chromatic dispersion compensator,...
Patent number
8,270,790
Issue date
Sep 18, 2012
Fujikura Ltd.
Kensuke Ogawa
G02 - OPTICS
Information
Patent Grant
Manufacturing method of planar optical waveguide device with gratin...
Patent number
8,227,178
Issue date
Jul 24, 2012
Fujikura Ltd.
Ken Sakuma
G02 - OPTICS
Information
Patent Grant
Dispersion compensation element, optical crystal, dispersion compen...
Patent number
7,515,785
Issue date
Apr 7, 2009
Fujikura Ltd.
Kensuke Ogawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Detection device, optical path length measurement device, measureme...
Patent number
7,426,038
Issue date
Sep 16, 2008
Fujikura Ltd.
Kensuke Ogawa
G01 - MEASURING TESTING
Information
Patent Grant
Dispersion compensation device
Patent number
7,065,280
Issue date
Jun 20, 2006
Bussan Nanotech Research, Inc.
Kensuke Ogawa
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Instruments of optical pulse characterization
Patent number
7,053,996
Issue date
May 30, 2006
Bussan Nanotech Research Institute, Inc.
Kensuke Ogawa
G01 - MEASURING TESTING
Information
Patent Grant
Instruments of optical pulse characterization
Patent number
6,819,428
Issue date
Nov 16, 2004
Bussan Nanotech Research Institute, Inc.
Kensuke Ogawa
G01 - MEASURING TESTING
Information
Patent Grant
Adaptive dispersion compensation device and control method for the...
Patent number
6,674,931
Issue date
Jan 6, 2004
Matsushita Electric Industrial Co., Ltd.
Shinichi Wakabayashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Superconductized semiconductor device using penetrating Cooper pairs
Patent number
5,455,451
Issue date
Oct 3, 1995
Hitachi, Ltd.
Toshiyuki Usagawa
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
ELECTRO-OPTIC WAVEGUIDE DEVICE AND OPTICAL MODULE
Publication number
20200064548
Publication date
Feb 27, 2020
Lumentum Japan, Inc.
Kensuke OGAWA
G02 - OPTICS
Information
Patent Application
OPTICAL WAVEGUIDE ELEMENT
Publication number
20180348430
Publication date
Dec 6, 2018
FUJIKURA LTD.
Kensuke OGAWA
G02 - OPTICS
Information
Patent Application
OPTICAL WAVEGUIDE ELEMENT, LIGHT-RECEIVING DEVICE, OPTICAL COMMUNIC...
Publication number
20170176681
Publication date
Jun 22, 2017
FUJIKURA LTD.
Hiroyuki Kusaka
G02 - OPTICS
Information
Patent Application
OPTICAL WAVEGUIDE ELEMENT
Publication number
20170168326
Publication date
Jun 15, 2017
FUJIKURA LTD.
Kensuke OGAWA
G02 - OPTICS
Information
Patent Application
OPTICAL RECEIVER CIRCUIT AND ADJUSTMENT METHOD FOR SAME
Publication number
20170099110
Publication date
Apr 6, 2017
FUJIKURA LTD.
Kensuke OGAWA
G02 - OPTICS
Information
Patent Application
OPTICAL WAVEGUIDE DEVICE AND METHOD OF MANUFACTURING THE SAME
Publication number
20170023810
Publication date
Jan 26, 2017
FUJIKURA LTD.
Kensuke OGAWA
G02 - OPTICS
Information
Patent Application
HIGH-ORDER POLARIZATION CONVERSION DEVICE, OPTICAL WAVEGUIDE DEVICE...
Publication number
20160178841
Publication date
Jun 23, 2016
FUJIKURA LTD.
Akira OKA
G02 - OPTICS
Information
Patent Application
POLARIZATION CONVERSION ELEMENT
Publication number
20160178842
Publication date
Jun 23, 2016
FUJIKURA LTD.
Kazuhiro GOI
G02 - OPTICS
Information
Patent Application
OPTICAL MODULATION DEVICE
Publication number
20150293427
Publication date
Oct 15, 2015
FUJIKURA LTD.
Kazuhiro GOI
G02 - OPTICS
Information
Patent Application
OPTICAL WAVEGUIDE ELEMENT AND OPTICAL MODULATOR
Publication number
20150293384
Publication date
Oct 15, 2015
FUJIKURA LTD.
Kensuke Ogawa
G02 - OPTICS
Information
Patent Application
OPTICAL WAVEGUIDE DEVICE
Publication number
20150241633
Publication date
Aug 27, 2015
FUJIKURA LTD.
Hiroyuki Kusaka
G02 - OPTICS
Information
Patent Application
PLANAR OPTICAL WAVEGUIDE DEVICE AND DP-QPSK MODULATOR
Publication number
20150104128
Publication date
Apr 16, 2015
FUJIKURA LTD.
Akira OKA
G02 - OPTICS
Information
Patent Application
POLARIZATION CONVERSION DEVICE
Publication number
20150003782
Publication date
Jan 1, 2015
FUJIKURA LTD.
Akira OKA
G02 - OPTICS
Information
Patent Application
OPTICAL ELEMENT AND MACH-ZEHNDER OPTICAL WAVEGUIDE ELEMENT
Publication number
20140233878
Publication date
Aug 21, 2014
FUJIKURA, LTD.
Kazuhiro GOI
G02 - OPTICS
Information
Patent Application
PHASE SHIFT INTERFEROMETER
Publication number
20140029012
Publication date
Jan 30, 2014
FUJIKURA LTD.
Kensuke OGAWA
G01 - MEASURING TESTING
Information
Patent Application
CHROMATIC DISPERSION MEASUREMENT DEVICE AND CHROMATIC DISPERSION ME...
Publication number
20130229662
Publication date
Sep 5, 2013
FUJIKURA LTD.
Kensuke OGAWA
G01 - MEASURING TESTING
Information
Patent Application
OPTICAL WAVEGUIDE-TYPE WAVELENGTH DISPERSION COMPENSATION DEVICE AN...
Publication number
20130183440
Publication date
Jul 18, 2013
FUJIKURA LTD.
Ning GUAN
B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information
Patent Application
PLANAR OPTICAL WAVEGUIDE ELEMENT, CHROMATIC DISPERSION COMPENSATOR,...
Publication number
20130129293
Publication date
May 23, 2013
FUJIKURA LTD.
Kensuke OGAWA
G02 - OPTICS
Information
Patent Application
MANUFACTURING METHOD OF PLANAR OPTICAL WAVEGUIDE DEVICE WITH GRATIN...
Publication number
20110049735
Publication date
Mar 3, 2011
FUJIKURA LTD.
Ken Sakuma
G02 - OPTICS
Information
Patent Application
MANUFACTURING METHOD OF PLANAR OPTICAL WAVEGUIDE DEVICE WITH GRATIN...
Publication number
20110053095
Publication date
Mar 3, 2011
FUJIKURA LTD.
Ken Sakuma
G02 - OPTICS
Information
Patent Application
PLANAR OPTICAL WAVEGUIDE ELEMENT, CHROMATIC DISPERSION COMPENSATOR,...
Publication number
20110013269
Publication date
Jan 20, 2011
FUJIKURA LTD.
Kensuke OGAWA
G02 - OPTICS
Information
Patent Application
PLANAR OPTICAL WAVEGUIDE ELEMENT, CHROMATIC DISPERSION COMPENSATOR,...
Publication number
20100329608
Publication date
Dec 30, 2010
FUJIKURA LTD.
Kensuke OGAWA
G02 - OPTICS
Information
Patent Application
OPTICAL WAVEGUIDE ELEMENT, CHROMATIC DISPERSION COMPENSATOR, METHOD...
Publication number
20100322558
Publication date
Dec 23, 2010
FUJIKURA LTD.
Kensuke OGAWA
G02 - OPTICS
Information
Patent Application
PLANAR OPTICAL WAVEGUIDE ELEMENT, CHROMATIC DISPERSION COMPENSATOR,...
Publication number
20100322559
Publication date
Dec 23, 2010
FUJIKURA LTD.
Kensuke OGAWA
G02 - OPTICS
Information
Patent Application
OPTICAL WAVEGUIDE-TYPE WAVELENGTH DISPERSION COMPENSATION DEVICE AN...
Publication number
20100316341
Publication date
Dec 16, 2010
FUJIKURA LTD.
Ning GUAN
G02 - OPTICS
Information
Patent Application
OPTICAL WAVEGUIDE, METHOD FOR MANUFACTURING THE OPTICAL WAVEGUIDE,...
Publication number
20100254656
Publication date
Oct 7, 2010
FUJIKURA LTD.
Ning GUAN
G02 - OPTICS
Information
Patent Application
Detection device, optical path length measurement device, measureme...
Publication number
20060132793
Publication date
Jun 22, 2006
Kensuke Ogawa
G01 - MEASURING TESTING
Information
Patent Application
DISPERSION COMPENSATION DEVICE
Publication number
20060093299
Publication date
May 4, 2006
Bussan Nanotech Research Institute, Inc.
Kensuke Ogawa
G02 - OPTICS
Information
Patent Application
Dispersion compensation element, optical crystal, dispersion compen...
Publication number
20060051016
Publication date
Mar 9, 2006
Kensuke Ogawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Instruments of optical pulse characterization
Publication number
20050058449
Publication date
Mar 17, 2005
Bussan Nanotech Research Institute, Inc.
Kensuke Ogawa
G01 - MEASURING TESTING