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Kuniaki Sakai
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Matsusaka, JP
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last 30 patents
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Patent number
5,862,242
Issue date
Jan 19, 1999
Matsushita Electric Industrial Co., Ltd.
Hiroyuki Takewa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Loudspeaker
Patent number
5,664,024
Issue date
Sep 2, 1997
Matsushita Electric Industrial Co., Ltd.
Akihiro Furuta
H04 - ELECTRIC COMMUNICATION TECHNIQUE