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Kazuhiro Goi
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Sakura-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical device, wavelength division multiplexing transmitter, wavel...
Patent number
10,718,899
Issue date
Jul 21, 2020
Fujikura Ltd.
Kazuhiro Goi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Substrate-type optical waveguide and introducing method using funda...
Patent number
10,386,573
Issue date
Aug 20, 2019
Fujikura Ltd.
Kazuhiro Goi
G02 - OPTICS
Information
Patent Grant
Semiconductor optical integrated circuit
Patent number
10,365,507
Issue date
Jul 30, 2019
Fujikura Ltd.
Norihiro Ishikura
G02 - OPTICS
Information
Patent Grant
Substrate-type optical waveguide and substrate-type optical modulator
Patent number
10,267,995
Issue date
Apr 23, 2019
Fujikura Ltd.
Shinichi Sakamoto
G02 - OPTICS
Information
Patent Grant
Light modulation element
Patent number
10,261,385
Issue date
Apr 16, 2019
Fujikura Ltd.
Kazuhiro Goi
G02 - OPTICS
Information
Patent Grant
Optical transmission device and bidirectional optical transmission...
Patent number
10,162,136
Issue date
Dec 25, 2018
Fujikura Ltd.
Kazuhiro Goi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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
Polarization-maintaining optical fiber and bidirectional optical tr...
Patent number
9,874,697
Issue date
Jan 23, 2018
Fujikura Ltd.
Kazuhiro Goi
G02 - OPTICS
Information
Patent Grant
Light combining/dividing element and light modulator
Patent number
9,869,816
Issue date
Jan 16, 2018
Fujikura Ltd.
Norihiro Ishikura
G02 - OPTICS
Information
Patent Grant
Substrate-type optical waveguide and substrate-type optical modulator
Patent number
9,864,215
Issue date
Jan 9, 2018
Fujikura Ltd.
Shinichi Sakamoto
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
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
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
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
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL DEVICE, WAVELENGTH DIVISION MULTIPLEXING TRANSMITTER, WAVEL...
Publication number
20190302363
Publication date
Oct 3, 2019
FUJIKURA LTD.
Kazuhiro Goi
G02 - OPTICS
Information
Patent Application
SUBSTRATE-TYPE OPTICAL WAVEGUIDE AND INTRODUCING METHOD
Publication number
20190101696
Publication date
Apr 4, 2019
FUJIKURA LTD.
Kazuhiro Goi
G02 - OPTICS
Information
Patent Application
SEMICONDUCTOR OPTICAL INTEGRATED CIRCUIT
Publication number
20180341126
Publication date
Nov 29, 2018
FUJIKURA LTD.
Norihiro Ishikura
G02 - OPTICS
Information
Patent Application
OPTICAL TRANSMISSION DEVICE AND BIDIRECTIONAL OPTICAL TRANSMISSION...
Publication number
20180224613
Publication date
Aug 9, 2018
FUJIKURA LTD.
Kazuhiro Goi
G02 - OPTICS
Information
Patent Application
LIGHT MODULATION ELEMENT
Publication number
20180180965
Publication date
Jun 28, 2018
FUJIKURA LTD.
Kazuhiro Goi
G02 - OPTICS
Information
Patent Application
SUBSTRATE-TYPE OPTICAL WAVEGUIDE AND SUBSTRATE-TYPE OPTICAL MODULATOR
Publication number
20180059327
Publication date
Mar 1, 2018
FUJIKURA LTD.
Shinichi Sakamoto
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
LIGHT COMBINING/DIVIDING ELEMENT AND LIGHT MODULATOR
Publication number
20170131471
Publication date
May 11, 2017
FUJIKURA LTD.
Norihiro Ishikura
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
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