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YUUKI IZUMI
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Kanagawa, JP
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Patents Grants
last 30 patents
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Patent Grant
Loudspeaker device and movable-body apparatus equipped with same
Patent number
10,531,170
Issue date
Jan 7, 2020
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Yoshimichi Kajihara
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Loudspeaker magnetic circuit and loudspeaker equipped with same
Patent number
10,104,475
Issue date
Oct 16, 2018
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Yuuki Izumi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
SUB CONE AND LOUDSPEAKER
Publication number
20230345179
Publication date
Oct 26, 2023
Panasonic Intellectual Property Management Co., Ltd.
Yoshitaka KAWASHIMA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
LOUDSPEAKER
Publication number
20230156384
Publication date
May 18, 2023
Panasonic Intellectual Property Management Co., Ltd.
Hiroyuki MORIMOTO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SPEAKER DEVICE AND MOVING BODY DEVICE WITH SAME MOUNTED THEREON
Publication number
20190200110
Publication date
Jun 27, 2019
Panasonic Intellectual Property Management Co., Lt
YOSHIMICHI KAJIHARA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
LOUDSPEAKER MAGNETIC CIRCUIT AND LOUDSPEAKER EQUIPPED WITH SAME
Publication number
20170230755
Publication date
Aug 10, 2017
Panasonic Intellectual Property Management Co., Ltd.
YUUKI IZUMI
H04 - ELECTRIC COMMUNICATION TECHNIQUE