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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Wavelength checker
Patent number
12,105,332
Issue date
Oct 1, 2024
Nippon Telegraph and Telephone Corporation
Takuya Tanaka
G02 - OPTICS
Information
Patent Grant
Learning device, and learning method
Patent number
12,073,301
Issue date
Aug 27, 2024
Ricoh Company, Ltd.
Takuya Tanaka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Learning device and learning method
Patent number
12,061,960
Issue date
Aug 13, 2024
Ricoh Company, Ltd.
Takuya Tanaka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Wavelength checker
Patent number
12,038,601
Issue date
Jul 16, 2024
Nippon Telegraph and Telephone Corporation
Takuya Tanaka
G02 - OPTICS
Information
Patent Grant
Optical device
Patent number
11,977,265
Issue date
May 7, 2024
Nippon Telegraph and Telephone Corporation
Takuya Tanaka
G02 - OPTICS
Information
Patent Grant
Photoelectric fiber and communication device
Patent number
11,934,022
Issue date
Mar 19, 2024
Nippon Telegraph and Telephone Corporation
Norio Sato
G02 - OPTICS
Information
Patent Grant
Learning device and learning method
Patent number
11,797,884
Issue date
Oct 24, 2023
Ricoh Company, Ltd.
Takuya Tanaka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Wavelength checker
Patent number
11,747,557
Issue date
Sep 5, 2023
Nippon Telegraph and Telephone Corporation
Takuya Tanaka
G01 - MEASURING TESTING
Information
Patent Grant
Learning device and learning method
Patent number
11,694,111
Issue date
Jul 4, 2023
Ricoh Company, Ltd.
Takuya Tanaka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Wavelength checker
Patent number
11,693,179
Issue date
Jul 4, 2023
Nippon Telegraph and Telephone Corporation
Takuya Tanaka
G02 - OPTICS
Information
Patent Grant
Learning device and learning method
Patent number
11,681,926
Issue date
Jun 20, 2023
Ricoh Company, Ltd.
Takuya Tanaka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Learning device and learning method
Patent number
11,645,573
Issue date
May 9, 2023
Ricoh Company, Ltd.
Takuya Tanaka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Learning device and learning method
Patent number
11,599,824
Issue date
Mar 7, 2023
Ricoh Company, Ltd.
Takuya Tanaka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Learning device and method for implementation of gradient boosted d...
Patent number
11,526,803
Issue date
Dec 13, 2022
Ricoh Company, Ltd.
Ryosuke Kasahara
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Learning device and learning method
Patent number
11,475,314
Issue date
Oct 18, 2022
Ricoh Company, Ltd.
Ryosuke Kasahara
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Learning by gradient boosting using a classification method with th...
Patent number
11,436,538
Issue date
Sep 6, 2022
Ricoh Company, Ltd.
Takuya Tanaka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method for forming groove in hybrid optical device, and hybrid opti...
Patent number
11,372,159
Issue date
Jun 28, 2022
Nippon Telegraph and Telephone Corporation
Takuya Tanaka
G02 - OPTICS
Information
Patent Grant
Learning classification device and learning classification method
Patent number
11,354,601
Issue date
Jun 7, 2022
Ricoh Company, Ltd.
Ryosuke Kasahara
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Wavelength checker
Patent number
11,262,499
Issue date
Mar 1, 2022
Nippon Telegraph and Telephone Corporation
Takuya Tanaka
G02 - OPTICS
Information
Patent Grant
Information processing apparatus configured to determine whether an...
Patent number
10,685,432
Issue date
Jun 16, 2020
Ricoh Company, Ltd.
Ryosuke Kasahara
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Information processing apparatus, information processing method and...
Patent number
10,572,993
Issue date
Feb 25, 2020
Ricoh Company, Ltd.
Takuya Tanaka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Information processing device, information processing method, compu...
Patent number
10,043,090
Issue date
Aug 7, 2018
Ricoh Company, Ltd.
Takuya Tanaka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Optical wavelength multiplexing/ de-multiplexing circuit
Patent number
8,369,666
Issue date
Feb 5, 2013
Nippon Telegraph and Telephone Corporation
Shin Kamei
G02 - OPTICS
Information
Patent Grant
Optical waveguide circuit
Patent number
7,245,793
Issue date
Jul 17, 2007
Nippon Telegraph and Telephone Corporation
Shin Kamei
G02 - OPTICS
Information
Patent Grant
Frequency stabilized laser and method for preparing thereof
Patent number
6,320,888
Issue date
Nov 20, 2001
Nippon Telegraph and Telephone Corporation
Takuya Tanaka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
WDM filter
Patent number
6,229,938
Issue date
May 8, 2001
Nippon Telegraph and Telephone Corporation
Yoshinori Hibino
G02 - OPTICS
Patents Applications
last 30 patents
Information
Patent Application
IMAGING APPARATUS
Publication number
20240214656
Publication date
Jun 27, 2024
Canon Kabushiki Kaisha
TAKUYA TANAKA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Wavelength Checker
Publication number
20220404565
Publication date
Dec 22, 2022
Nippon Telegraph and Telephone Corporation
Takuya Tanaka
G02 - OPTICS
Information
Patent Application
Wavelength Checker
Publication number
20220381982
Publication date
Dec 1, 2022
Nippon Telegraph and Telephone Corporation
Takuya Tanaka
G02 - OPTICS
Information
Patent Application
Optical Device
Publication number
20220357534
Publication date
Nov 10, 2022
Nippon Telegraph and Telephone Corporation
Takuya Tanaka
G02 - OPTICS
Information
Patent Application
Wavelength Checker
Publication number
20220276435
Publication date
Sep 1, 2022
Nippon Telegraph and Telephone Corporation
Takuya Tanaka
G01 - MEASURING TESTING
Information
Patent Application
Photoelectric Fiber and Communication Device
Publication number
20220269020
Publication date
Aug 25, 2022
Nippon Telegraph and Telephone Corporation
Norio Sato
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
IMAGE FORMING DEVICE, INFORMATION PROCESSING DEVICE, COMPUTER-READA...
Publication number
20220100433
Publication date
Mar 31, 2022
Ricoh Company, Ltd.
Takuya TANAKA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Wavelength Checker
Publication number
20210373233
Publication date
Dec 2, 2021
Nippon Telegraph and Telephone Corporation
Takuya Tanaka
G02 - OPTICS
Information
Patent Application
Wavelength Checker
Publication number
20210356665
Publication date
Nov 18, 2021
Nippon Telegraph and Telephone Corporation
Takuya Tanaka
G02 - OPTICS
Information
Patent Application
METHOD FOR FORMING GROOVE IN HYBRID OPTICAL DEVICE, AND HYBRID OPTI...
Publication number
20210239901
Publication date
Aug 5, 2021
Nippon Telegraph and Telephone Corporation
Takuya Tanaka
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Application
LEARNING DEVICE, AND LEARNING METHOD
Publication number
20210158224
Publication date
May 27, 2021
Takuya Tanaka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
LEARNING DEVICE AND LEARNING METHOD
Publication number
20210012240
Publication date
Jan 14, 2021
Takuya Tanaka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
LEARNING DEVICE AND LEARNING METHOD
Publication number
20200293907
Publication date
Sep 17, 2020
Ryosuke KASAHARA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
LEARNING DEVICE AND LEARNING METHOD
Publication number
20200143284
Publication date
May 7, 2020
Takuya Tanaka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
LEARNING DEVICE AND LEARNING METHOD
Publication number
20200143285
Publication date
May 7, 2020
Takuya Tanaka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
LEARNING DEVICE AND LEARNING METHOD
Publication number
20200143290
Publication date
May 7, 2020
Takuya Tanaka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
LEARNING DEVICE AND LEARNING METHOD
Publication number
20200065707
Publication date
Feb 27, 2020
Ryosuke KASAHARA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
LEARNING DEVICE AND LEARNING METHOD
Publication number
20200050933
Publication date
Feb 13, 2020
Takuya Tanaka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
LEARNING DEVICE AND LEARNING METHOD
Publication number
20200050970
Publication date
Feb 13, 2020
Takuya Tanaka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
LEARNING DEVICE AND LEARNING METHOD
Publication number
20200050963
Publication date
Feb 13, 2020
Takuya Tanaka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
LEARNING AND DISCRIMINATION DEVICE, AND LEARNING AND DISCRIMINATION...
Publication number
20190378046
Publication date
Dec 12, 2019
Takuya Tanaka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
LEARNING CLASSIFICATION DEVICE AND LEARNING CLASSIFICATION METHOD
Publication number
20190287023
Publication date
Sep 19, 2019
Ryosuke KASAHARA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD AND...
Publication number
20180211374
Publication date
Jul 26, 2018
RICOH COMPANY, LTD.
Takuya Tanaka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD AND...
Publication number
20180204316
Publication date
Jul 19, 2018
RICOH COMPANY, LTD.
Ryosuke KASAHARA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
METHOD AND SYSTEM OF GENERATIVE MODEL LEARNING, AND PROGRAM PRODUCT
Publication number
20180101770
Publication date
Apr 12, 2018
RICOH COMPANY, LTD.
Takuya TANAKA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, COMPU...
Publication number
20170154234
Publication date
Jun 1, 2017
Takuya TANAKA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Optical Wavelength Multiplexing/ De-multiplexing Circuit
Publication number
20110116802
Publication date
May 19, 2011
Nippon Telegraph and Telephone Corporation
Shin Kamei
G02 - OPTICS
Information
Patent Application
Information service providing method
Publication number
20060089887
Publication date
Apr 27, 2006
Pioneer Corporation
Takehiko Shioda
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Optical waveguide circuit
Publication number
20040126052
Publication date
Jul 1, 2004
Nippon Telegraph and Telephone Corporation
Shin Kamei
G02 - OPTICS
Information
Patent Application
Information providing system
Publication number
20020052847
Publication date
May 2, 2002
PIONEER CORPORATION
Takehiko Shioda
H04 - ELECTRIC COMMUNICATION TECHNIQUE