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Tsuyoshi Baba
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Kurate-gun, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Unidirectional microphone
Patent number
11,503,402
Issue date
Nov 15, 2022
Hosiden Corporation
Hiroshi Yamagata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Electret condensor microphone
Patent number
8,135,150
Issue date
Mar 13, 2012
Hosiden Corporation
Toshiro Izuchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Microphone and microphone mounting structure
Patent number
8,050,443
Issue date
Nov 1, 2011
Hosiden Corporation
Toshiro Izuchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
UNIDIRECTIONAL MICROPHONE
Publication number
20210400378
Publication date
Dec 23, 2021
HOSIDEN CORPORATION
Hiroshi YAMAGATA
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Electret Condenser Microphone
Publication number
20110013788
Publication date
Jan 20, 2011
HOSIDEN CORPORATION
Toshiro Izuchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Condenser Microphone
Publication number
20090003631
Publication date
Jan 1, 2009
HOSIDEN CORPORATION
Toshiro Izuchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Microphone and microphone mounting structurre
Publication number
20080112585
Publication date
May 15, 2008
HOSIDEN CORPORATION
Toshiro Izuchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Electret condensor microphone
Publication number
20080080729
Publication date
Apr 3, 2008
HOSIDEN CORPORATION
Toshiro Izuchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE