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Toshiyuki Oka
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Yokohama-Shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Transmission path design apparatus, transmission network topology d...
Patent number
11,824,762
Issue date
Nov 21, 2023
Nippon Telegraph and Telephone Corporation
Hiroshi Yamamoto
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission system and failure diagnosis method for optica...
Patent number
11,528,080
Issue date
Dec 13, 2022
Nippon Telegraph and Telephone Corporation
Hiroki Kawahara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wiring management system and wiring management method
Patent number
11,362,894
Issue date
Jun 14, 2022
Nippon Telegraph and Telephone Corporation
Yoshihiko Uematsu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical transmission system and optical transmission method
Patent number
11,265,628
Issue date
Mar 1, 2022
Nippon Telegraph and Telephone Corporation
Katsuhiro Araya
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical reception device
Patent number
11,251,877
Issue date
Feb 15, 2022
Nippon Telegraph and Telephone Corporation
Hiroki Kawahara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Switching power supply circuit with reduced noise and potential sta...
Patent number
9,882,499
Issue date
Jan 30, 2018
Sharp Corporation
Keiichi Sakuno
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Semiconductor light emitting device
Patent number
9,722,162
Issue date
Aug 1, 2017
Kabushiki Kaisha Toshiba
Koji Kaga
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light emitting device and method for manufacturing same
Patent number
9,412,910
Issue date
Aug 9, 2016
Kabushiki Kaisha Toshiba
Toshihide Ito
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light emitting device
Patent number
9,368,682
Issue date
Jun 14, 2016
Kabushiki Kaisha Toshiba
Hiroshi Katsuno
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Nitride semiconductor device, nitride semiconductor wafer, and meth...
Patent number
9,312,436
Issue date
Apr 12, 2016
Kabushiki Kaisha Toshiba
Hiroshi Ono
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light emitting device
Patent number
9,299,889
Issue date
Mar 29, 2016
Kabushiki Kaisha Toshiba
Hiroshi Katsuno
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light emitting device and method of fabricating semic...
Patent number
9,209,362
Issue date
Dec 8, 2015
Kabushiki Kaisha Toshiba
Toru Gotoda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light emitting device and method for manufacturing th...
Patent number
9,202,986
Issue date
Dec 1, 2015
Kabushiki Kaisha Toshiba
Toshihide Ito
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light emitting device
Patent number
9,159,878
Issue date
Oct 13, 2015
Kabushiki Kaisha Toshiba
Shigeya Kimura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light emitting device
Patent number
9,082,931
Issue date
Jul 14, 2015
Kabushiki Kaisha Toshiba
Hiroshi Katsuno
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light emitting device and method for manufacturing th...
Patent number
9,018,665
Issue date
Apr 28, 2015
Kabushiki Kaisha Toshiba
Kotaro Zaima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for manufacturing semiconductor light emitting device and se...
Patent number
9,006,013
Issue date
Apr 14, 2015
Kabushiki Kaisha Toshiba
Toru Gotoda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Nitride LED with a schottky electrode penetrating a transparent ele...
Patent number
8,994,054
Issue date
Mar 31, 2015
Kabushiki Kaisha Toshiba
Eiji Muramoto
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light emitting device and method for manufacturing th...
Patent number
8,981,398
Issue date
Mar 17, 2015
Kabushiki Kaisha Toshiba
Kotaro Zaima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light-emitting device and method for manufacturing same
Patent number
8,963,176
Issue date
Feb 24, 2015
Kabushiki Kaisha Toshiba
Shigeya Kimura
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Semiconductor light emitting device and method for manufacturing th...
Patent number
8,890,195
Issue date
Nov 18, 2014
Kabushiki Kaisha Toshiba
Taisuke Sato
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light emitting device and method for manufacturing th...
Patent number
8,877,526
Issue date
Nov 4, 2014
Kabushiki Kaisha Toshiba
Hiroshi Ono
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device and method for manufacturing same
Patent number
8,859,307
Issue date
Oct 14, 2014
Kabushiki Kaisha Toshiba
Satoshi Mitsugi
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Semiconductor light emitting device and method for manufacturing th...
Patent number
8,822,250
Issue date
Sep 2, 2014
Kabushiki Kaisha Toshiba
Kotaro Zaima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light emitting device and method for manufacturing th...
Patent number
8,809,833
Issue date
Aug 19, 2014
Kabushiki Kaisha Toshiba
Kotaro Zaima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light emitting device and method of fabricating semic...
Patent number
8,766,305
Issue date
Jul 1, 2014
Kabushiki Kaisha Toshiba
Toru Gotoda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light emitting device and method for manufacturing same
Patent number
8,766,297
Issue date
Jul 1, 2014
Kabushiki Kaisha Toshiba
Toshihide Ito
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light emitting device and method for manufacturing th...
Patent number
8,735,925
Issue date
May 27, 2014
Kabushiki Kaisha Toshiba
Kotaro Zaima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light emitting device and method of fabricating semic...
Patent number
8,680,548
Issue date
Mar 25, 2014
Kabushiki Kaisha Toshiba
Toru Gotoda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor light emitting device
Patent number
8,653,498
Issue date
Feb 18, 2014
Kabushiki Kaisha Toshiba
Shigeya Kimura
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
TRANSMISSION PATH DESIGN APPARATUS, TRANSMISSION NETWORK TOPOLOGY D...
Publication number
20220360520
Publication date
Nov 10, 2022
Nippon Telegraph and Telephone Corporation
Hiroshi YAMAMOTO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMISSION SYSTEM AND FAILURE DIAGNOSIS METHOD FOR OPTICA...
Publication number
20220021449
Publication date
Jan 20, 2022
Nippon Telegraph and Telephone Corporation
Hiroki Kawahara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL TRANSMISSION SYSTEM AND OPTICAL TRANSMISSION METHOD
Publication number
20210321178
Publication date
Oct 14, 2021
Nippon Telegraph and Telephone Corporation
Katsuhiro ARAYA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL RECEPTION DEVICE
Publication number
20210218474
Publication date
Jul 15, 2021
Nippon Telegraph and Telephone Corporation
Hiroki KAWAHARA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL CROSS-CONNECT DEVICE
Publication number
20210219031
Publication date
Jul 15, 2021
Nippon Telegraph and Telephone Corporation
Hiroki KAWAHARA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
WIRING MANAGEMENT SYSTEM AND WIRING MANAGEMENT METHOD
Publication number
20210014585
Publication date
Jan 14, 2021
Nippon Telegraph and Telephone Corporation
Yoshihiko Uematsu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SEMICONDUCTOR LIGHT EMITTING DEVICE
Publication number
20170301725
Publication date
Oct 19, 2017
Kabushiki Kaisha Toshiba
Koji Kaga
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR LIGHT EMITTING DEVICE
Publication number
20170077366
Publication date
Mar 16, 2017
Kabushiki Kaisha Toshiba
Koji Kaga
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SWITCHING POWER SUPPLY CIRCUIT
Publication number
20170012548
Publication date
Jan 12, 2017
Sharp Kabushiki Kaisha
Keiichi SAKUNO
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
SEMICONDUCTOR LIGHT EMITTING DEVICE
Publication number
20160276526
Publication date
Sep 22, 2016
Kabushiki Kaisha Toshiba
Koji Kaga
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR LIGHT EMITTING DEVICE AND METHOD FOR MANUFACTURING TH...
Publication number
20150280061
Publication date
Oct 1, 2015
KABUSHIKI KAISHA TOSHIBA
Toshihide ITO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR LIGHT EMITTING DEVICE
Publication number
20150263230
Publication date
Sep 17, 2015
KABUSHIKI KAISHA TOSHIBA
Hiroshi KATSUNO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR LIGHT EMITTING DEVICE AND METHOD FOR MANUFACTURING TH...
Publication number
20140319458
Publication date
Oct 30, 2014
KABUSHIKI KAISHA TOSHIBA
Kotaro Zaima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR LIGHT EMITTING DEVICE AND METHOD OF FABRICATING SEMIC...
Publication number
20140284647
Publication date
Sep 25, 2014
KABUSHIKI KAISHA TOSHIBA
Toru GOTODA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR LIGHT EMITTING DEVICE AND METHOD FOR MANUFACTURING TH...
Publication number
20140225061
Publication date
Aug 14, 2014
KABUSHIKI KAISHA TOSHIBA
Kotaro Zaima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR LIGHT EMITTING DEVICE
Publication number
20140191269
Publication date
Jul 10, 2014
KABUSHIKI KAISHA TOSHIBA
Hiroshi KATSUNO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR LIGHT EMITTING DEVICE AND METHOD FOR MANUFACTURING TH...
Publication number
20140077250
Publication date
Mar 20, 2014
KABUSHIKI KAISHA TOSHIBA
Toshihide ITO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR LIGHT EMITTING DEVICE AND METHOD FOR MANUFACTURING TH...
Publication number
20140048769
Publication date
Feb 20, 2014
KABUSHIKI KAISHA TOSHIBA
Kotaro Zaima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR LIGHT EMITTING DEVICE
Publication number
20130248921
Publication date
Sep 26, 2013
KABUSHIKI KAISHA TOSHIBA
Shigeya Kimura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING SAME
Publication number
20130234298
Publication date
Sep 12, 2013
Kabushiki Kaisha Toshiba
Satoshi MITSUGI
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
NITRIDE SEMICONDUCTOR DEVICE, NITRIDE SEMICONDUCTOR WAFER, AND METH...
Publication number
20130228745
Publication date
Sep 5, 2013
Kabushiki Kaisha Toshiba
Hiroshi Ono
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR LIGHT-EMITTING DEVICE AND METHOD FOR MANUFACTURING SAME
Publication number
20130200390
Publication date
Aug 8, 2013
KABUSHIKI KAISHA TOSHIBA
Shigeya Kimura
B82 - NANO-TECHNOLOGY
Information
Patent Application
SEMICONDUCTOR LIGHT EMITTING DEVICE AND METHOD FOR MANUFACTURING TH...
Publication number
20130203192
Publication date
Aug 8, 2013
KABUSHIKI KAISHA TOSHIBA
Hiroshi ONO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR LIGHT EMITTING DEVICE AND METHOD OF FABRICATING SEMIC...
Publication number
20130153922
Publication date
Jun 20, 2013
Toru Gotoda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR LIGHT EMITTING DEVICE AND METHOD FOR MANUFACTURING TH...
Publication number
20130134469
Publication date
May 30, 2013
KABUSHIKI KAISHA TOSHIBA
Taisuke SATO
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
NITRIDE SEMICONDUCTOR LIGHT EMITTING DEVICE AND METHOD FOR MANUFACT...
Publication number
20130122626
Publication date
May 16, 2013
Kabushiki Kaisha Toshiba
Hajime Nago
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR LIGHT EMITTING DEVICE AND METHOD FOR MANUFACTURING TH...
Publication number
20130059408
Publication date
Mar 7, 2013
Kotaro Zaima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
METHOD FOR MANUFACTURING SEMICONDUCTOR LIGHT EMITTING DEVICE AND SE...
Publication number
20120319161
Publication date
Dec 20, 2012
Kabushiki Kaisha Toshiba
Toru GOTODA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
NITRIDE SEMICONDUCTOR DEVICE AND NITRIDE SEMICONDUCTOR LAYER GROWTH...
Publication number
20120299015
Publication date
Nov 29, 2012
Kabushiki Kaisha Toshiba
Koichi TACHIBANA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
NITRIDE SEMICONDUCTOR DEVICE, NITRIDE SEMICONDUCTOR WAFER, AND METH...
Publication number
20120292648
Publication date
Nov 22, 2012
Kabushiki Kaisha Toshiba
Hiroshi Ono
H01 - BASIC ELECTRIC ELEMENTS