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Seiji Hirade
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Shizuoka-ken, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Condenser microphone
Patent number
8,126,167
Issue date
Feb 28, 2012
Yamaha Corporation
Seiji Hirade
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Mixing recorder, control method therefore, and computer-readable me...
Patent number
7,212,469
Issue date
May 1, 2007
Yamaha Corporation
Seiji Hirade
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Portable mixing recorder and method and program for controlling the...
Patent number
7,119,267
Issue date
Oct 10, 2006
Yamaha Corporation
Seiji Hirade
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Semiconductor input protection circuit
Patent number
7,075,123
Issue date
Jul 11, 2006
Yamaha Corporation
Nobuaki Tsuji
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor input protection circuit
Patent number
6,847,059
Issue date
Jan 25, 2005
Yamaha Corporation
Nobuaki Tsuji
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device having MOS transistor
Patent number
6,633,059
Issue date
Oct 14, 2003
Yamaha Corporation
Seiji Hirade
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device having MOS transistor
Patent number
6,083,784
Issue date
Jul 4, 2000
Yamaha Corporation
Seiji Hirade
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of fabricating a semiconductor device having a multi-layered...
Patent number
6,080,652
Issue date
Jun 27, 2000
Yamaha Corporation
Takahisa Yamaha
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device and fabrication method thereof
Patent number
5,998,814
Issue date
Dec 7, 1999
Yamaha Corporation
Takahisa Yamaha
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of manufacturing a laminated wiring structure preventing imp...
Patent number
5,858,868
Issue date
Jan 12, 1999
Yamaha Corporation
Seiji Hirade
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
MOS transistor with good hot carrier resistance and low interface s...
Patent number
5,793,110
Issue date
Aug 11, 1998
Yamaha Corporation
Takahisa Yamaha
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of forming a step compensated semiconductor device
Patent number
5,457,070
Issue date
Oct 10, 1995
Yamaha Corporation
Seiji Hirade
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
Vibration transducer and manufacturing method therefor
Publication number
20090136064
Publication date
May 28, 2009
Yamaha Corporation
Tamito Suzuki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CAPACITOR MICROPHONE AND METHOD FOR MANUFACTURING CAPACITOR MICROPHONE
Publication number
20090074211
Publication date
Mar 19, 2009
Yamaha Corporation
Seiji Hirade
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Condenser microphone
Publication number
20090060232
Publication date
Mar 5, 2009
Yamaha Corporation
Seiji Hirade
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Microphone package adapted to semiconductor device and manufacturin...
Publication number
20080310663
Publication date
Dec 18, 2008
Yamaha Corporation
Kenichi Shirasaka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SENSITIVE SILICON MICROPHONE WITH WIDE DYNAMIC RANGE
Publication number
20080205668
Publication date
Aug 28, 2008
Yamaha Corporation
Junji TORII
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Silicon microphone and manufacturing method therefor
Publication number
20080019543
Publication date
Jan 24, 2008
Yamaha Corporation
Yukitoshi Suzuki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CONDENSER MICROPHONE
Publication number
20070286438
Publication date
Dec 13, 2007
Yamaha Corporation
Seiji Hirade
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CAPACITOR MICROPHONE AND DIAPHRAGM THEREFOR
Publication number
20070121972
Publication date
May 31, 2007
Yamaha Corporation
Yukitoshi Suzuki
B81 - MICRO-STRUCTURAL TECHNOLOGY
Information
Patent Application
Semiconductor input protection circuit
Publication number
20050051847
Publication date
Mar 10, 2005
Yamaha Corporation
Nobuaki Tsuji
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Mixing recorder, control method therefor, and program for implement...
Publication number
20040091126
Publication date
May 13, 2004
Seiji Hirade
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
Portable mixing recorder and method and program for controlling the...
Publication number
20020189426
Publication date
Dec 19, 2002
Yamaha Corporation
Seiji Hirade
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
Semiconductor input protection circuit
Publication number
20020043687
Publication date
Apr 18, 2002
Nobuaki Tsuji
H01 - BASIC ELECTRIC ELEMENTS