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TOKYO, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Headphone cover and fastener therefor
Patent number
11,683,622
Issue date
Jun 20, 2023
FIFTY SQUARE INC.
Masayuki Hayashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
HEADPHONE COVER AND FASTENER THEREFOR, AND HEADPHONE COVER MOUNTING...
Publication number
20230319451
Publication date
Oct 5, 2023
FIFTY SQUARE INC.
Masayuki HAYASHI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
HEADPHONE COVER AND FASTENER THEREFOR
Publication number
20220167070
Publication date
May 26, 2022
FIFTY SQUARE INC.
Masayuki HAYASHI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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last 30 trademarks