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Okayama, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Speaker diaphragm, speaker, speaker diaphragm manufacturing method,...
Patent number
11,582,557
Issue date
Feb 14, 2023
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Tetsuya Koyanagi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Oscillatory component for loudspeakers, loudspeaker comprising same...
Patent number
10,708,693
Issue date
Jul 7, 2020
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Tomonori Shibuya
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Loudspeaker diaphragm, method of manufacturing same, and loudspeake...
Patent number
10,645,509
Issue date
May 5, 2020
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Tetsushi Itano
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Loudspeaker diaphragm, loudspeaker, and production method for louds...
Patent number
10,484,794
Issue date
Nov 19, 2019
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Tetsushi Itano
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Loudspeaker device and movable-body device equipped with the same
Patent number
10,477,290
Issue date
Nov 12, 2019
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Ryo Kuribayashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Loudspeaker diaphragm, and loudspeaker, electronic device and mobil...
Patent number
9,781,515
Issue date
Oct 3, 2017
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Tomonori Shibuya
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Magnetic circuit for loudspeaker, and loudspeaker using same
Patent number
9,277,304
Issue date
Mar 1, 2016
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Mitsukazu Kuze
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Loudspeaker magnetic circuit and loudspeaker using same
Patent number
9,049,521
Issue date
Jun 2, 2015
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Tetsushi Itano
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Magnetic circuit for speaker and speaker using same
Patent number
8,744,116
Issue date
Jun 3, 2014
Panasonic Corporation
Tetsushi Itano
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
DIAPHRAGM AND ELECTROACOUSTIC TRANSDUCER
Publication number
20240244379
Publication date
Jul 18, 2024
Panasonic Intellectual Property Management Co., Ltd.
Mitsukazu KUZE
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
LOUDSPEAKER
Publication number
20230319482
Publication date
Oct 5, 2023
Panasonic Intellectual Property Management Co., Ltd.
Kazuma FUJIOKA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
LOUDSPEAKER DIAPHRAGM, LOUDSPEAKER, ELECTRONIC DEVICE, MOVABLE BODY...
Publication number
20230292050
Publication date
Sep 14, 2023
Panasonic Intellectual Property Management Co., Ltd.
Tetsuya KOYANAGI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SPEAKER DIAPHRAGM, SPEAKER, SPEAKER DIAPHRAGM MANUFACTURING METHOD,...
Publication number
20210306755
Publication date
Sep 30, 2021
Panasonic Intellectual Property Management Co., Ltd.
Tetsuya KOYANAGI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OSCILLATORY COMPONENT FOR LOUDSPEAKERS, LOUDSPEAKER COMPRISING SAME...
Publication number
20190297423
Publication date
Sep 26, 2019
Panasonic Intellectual Property Management Co., Ltd.
TOMONORI SHIBUYA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
LOUDSPEAKER DIAPHRAGM, METHOD OF MANUFACTURING SAME, AND LOUDSPEAKE...
Publication number
20190166445
Publication date
May 30, 2019
Panasonic Intellectual Property Management Co., Ltd.
TETSUSHI ITANO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
LOUDSPEAKER DIAPHRAGM, LOUDSPEAKER, AND PRODUCTION METHOD FOR LOUDS...
Publication number
20180324526
Publication date
Nov 8, 2018
Panasonic Intellectual Property Management Co., Ltd.
TETSUSHI ITANO
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
LOUDSPEAKER DEVICE AND MOVABLE-BODY DEVICE EQUIPPED WITH THE SAME
Publication number
20180310084
Publication date
Oct 25, 2018
Panasonic Intellectual Property Management Co., Ltd.
RYO KURIBAYASHI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MAGNETIC CIRCUIT AND LOUDSPEAKER USING SAME
Publication number
20170280248
Publication date
Sep 28, 2017
Panasonic Intellectual Property Management Co., Ltd.
MITSUKAZU KUZE
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
LOUDSPEAKER DIAPHRAGM, AND LOUDSPEAKER, ELECTRONIC DEVICE AND MOBIL...
Publication number
20160212540
Publication date
Jul 21, 2016
TOMONORI SHIBUYA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MAGNETIC CIRCUIT FOR LOUDSPEAKER, AND LOUDSPEAKER USING SAME
Publication number
20140348374
Publication date
Nov 27, 2014
MITSUKAZU KUZE
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
LOUDSPEAKER MAGNETIC CIRCUIT AND LOUDSPEAKER USING SAME
Publication number
20140294228
Publication date
Oct 2, 2014
TETSUSHI ITANO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MAGNETIC CIRCUIT FOR LOUDSPEAKER AND LOUDSPEAKER USING THE SAME
Publication number
20140056468
Publication date
Feb 27, 2014
PANASONIC CORPORATION
Mitsukazu Kuze
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MAGNETIC CIRCUIT FOR SPEAKER AND SPEAKER USING SAME
Publication number
20130170676
Publication date
Jul 4, 2013
PANASONIC CORPORATION
Tetsushi Itano
H04 - ELECTRIC COMMUNICATION TECHNIQUE