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Tetsu Ohwada
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Bandstop filter having a main line and ¼ wavelength resonators in p...
Patent number
7,671,707
Issue date
Mar 2, 2010
Mitsubishi Denki Kabushiki Kaisha
Tetsu Ohwada
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
High frequency module and antenna device
Patent number
7,019,706
Issue date
Mar 28, 2006
Mitsubishi Denki Kabushiki Kaisha
Naofumi Yoneda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Low-pass filter
Patent number
6,624,728
Issue date
Sep 23, 2003
Mitsubishi Denki Kabushiki Kaisha
Moriyasu Miyazaki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Antenna device provided with matching circuits adapted for reflecti...
Patent number
6,421,026
Issue date
Jul 16, 2002
Mitsubishi Denki Kabushiki Kaisha
Tamotsu Nishino
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Low-pass filter
Patent number
6,255,920
Issue date
Jul 3, 2001
Mitsubishi Denki Kabushiki Kaisha
Tetsu Ohwada
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Antenna device
Patent number
6,172,656
Issue date
Jan 9, 2001
Mitsubishi Denki Kabushiki Kaisha
Tetsu Ohwada
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
Bandstop filter
Publication number
20060250199
Publication date
Nov 9, 2006
Tetsu Ohwada
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
High frequency module and antenna device
Publication number
20050104686
Publication date
May 19, 2005
Mitsubishi Denki Kabushiki Kaisha
Naofumi Yoneda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Low-pass filter
Publication number
20020163405
Publication date
Nov 7, 2002
Moriyasu Miyazaki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Impedance matching circuit and antenna apparatus using the same
Publication number
20020118075
Publication date
Aug 29, 2002
Mitsubishi Denki Kabushiki Kaisha
Tetsu Ohwada
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Antenna device provided with matching circuits adapted for reflecti...
Publication number
20020000949
Publication date
Jan 3, 2002
Mitsubishi Denki Kabushiki Kaisha
Tamotsu Nishino
H01 - BASIC ELECTRIC ELEMENTS