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Yumi SHIMAZAKI
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Tokyo, JP
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Patents Grants
last 30 patents
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Patent Grant
Headphone
Patent number
10,511,900
Issue date
Dec 17, 2019
Kabushiki Kaisha Audio Technica
Daisuke Yoneyama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Noise-cancelling headphone
Patent number
10,249,287
Issue date
Apr 2, 2019
Kabushiki Kaisha Audio Technica
Koji Otsuka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Noise-cancelling headphone
Patent number
10,204,615
Issue date
Feb 12, 2019
Kabushiki Kaisha Audio Technica
Koji Otsuka
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Noise-cancelling headphone
Patent number
9,959,858
Issue date
May 1, 2018
Kabushiki Kaisha Audio Technica
Koji Otsuka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Noise-cancelling headphone
Patent number
9,913,020
Issue date
Mar 6, 2018
Kabushiki Kaisha Audio Technica
Koji Otsuka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
Headphone
Publication number
20180366100
Publication date
Dec 20, 2018
KABUSHIKI KAISHA AUDIO-TECHNICA
Koji Otsuka
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
HEADPHONE
Publication number
20180352318
Publication date
Dec 6, 2018
KABUSHIKI KAISHA AUDIO-TECHNICA
Daisuke YONEYAMA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
NOISE-CANCELLING HEADPHONE
Publication number
20180068648
Publication date
Mar 8, 2018
KABUSHIKI KAISHA AUDIO-TECHNICA
Koji OTSUKA
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
NOISE-CANCELLING HEADPHONE
Publication number
20170040013
Publication date
Feb 9, 2017
KABUSHIKI KAISHA AUDIO-TECHNICA
Koji OTSUKA
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
NOISE-CANCELLING HEADPHONE
Publication number
20170026737
Publication date
Jan 26, 2017
KABUSHIKI KAISHA AUDIO-TECHNICA
Koji OTSUKA
H04 - ELECTRIC COMMUNICATION TECHNIQUE