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Kunio Mitobe
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Yamagata-ken, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Speaker device and mobile phone
Patent number
8,135,160
Issue date
Mar 13, 2012
Pioneer Corporation
Kunio Mitobe
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Speaker device and mobile phone
Patent number
8,027,502
Issue date
Sep 27, 2011
Pioneer Corporation
Kunio Mitobe
B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information
Patent Grant
Diaphragm for speaker device, speaker device and mobile phone
Patent number
8,027,503
Issue date
Sep 27, 2011
Pioneer Corporation
Shinsuke Konuma
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Speaker and manufacturing method for the same
Patent number
7,433,486
Issue date
Oct 7, 2008
Pioneer Corporation
Takeshi Kaiwa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Speaker unit
Patent number
7,103,195
Issue date
Sep 5, 2006
Pioneer Corporation
Tomohiro Kawata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Speaker apparatus
Patent number
6,944,310
Issue date
Sep 13, 2005
Pioneer Corporation
Masanori Ito
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Speaker and speaker system
Patent number
6,754,362
Issue date
Jun 22, 2004
Pioneer Corporation
Takeshi Kaiwa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Dome speaker
Patent number
6,154,556
Issue date
Nov 28, 2000
Pioneer Electronic Corporation
Osamu Takahashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Methods for making a loudspeaker vibrating diaphragm
Patent number
6,030,561
Issue date
Feb 29, 2000
Pioneer Electronics Corporation
Masatoshi Sato
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Speaker unit and a method for manufacturing the same
Patent number
5,892,185
Issue date
Apr 6, 1999
Pioneer Electronic Corporation
Osamu Takahashi
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Loudspeaker vibrating diaphragm and methods for its production
Patent number
5,793,002
Issue date
Aug 11, 1998
Pioneer Electronic Corporation
Masatoshi Sato
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Magnetic circuit in a loudspeaker
Patent number
5,295,195
Issue date
Mar 15, 1994
Tohoku Pioneer Electronic Corp.
Kunio Mitobe
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method of making elements of a magnetic circuit in a loudspeaker
Patent number
5,270,676
Issue date
Dec 14, 1993
Pioneer Electronic Corporation
Kunio Mitobe
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Dome radiator speaker
Patent number
5,157,731
Issue date
Oct 20, 1992
Pioneer Electronic Corporation
Kunio Mitobe
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Speaker and manufacturing method therefor
Patent number
5,111,510
Issue date
May 5, 1992
Pioneer Electronic Corporation
Kunio Mitobe
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Speaker and manufacturing method therefor
Patent number
5,099,949
Issue date
Mar 31, 1992
Pioneer Electronic Corporation
Kunio Mitobe
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
Magnetic circuit for speaker device and speaker device
Publication number
20080025552
Publication date
Jan 31, 2008
Pioneer Corporation
Hiroyuki Dohi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Speaker device and mobile phone
Publication number
20070147651
Publication date
Jun 28, 2007
Pioneer Corporation
Kunio Mitobe
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Diaphragm for speaker device, speaker device and mobile phone
Publication number
20070140520
Publication date
Jun 21, 2007
Pioneer Corporation
Shinsuke Konuma
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Speaker device and mobile phone
Publication number
20070140521
Publication date
Jun 21, 2007
Pioneer Corporation
Kunio Mitobe
B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information
Patent Application
Speaker and manufacturing method for the same
Publication number
20040240702
Publication date
Dec 2, 2004
PIONEER CORPORATION
Takeshi Kaiwa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Speaker apparatus
Publication number
20030164262
Publication date
Sep 4, 2003
PIONEER CORPORATION
Masanori Ito
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Speaker and speaker system
Publication number
20020118855
Publication date
Aug 29, 2002
PIONEER CORPORATION
Takeshi Kaiwa
H04 - ELECTRIC COMMUNICATION TECHNIQUE