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Shin Nakajima
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Saitama, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Magnetic core for saturable reactor, magnetic amplifier type multi-...
Patent number
6,504,737
Issue date
Jan 7, 2003
Hitachi Metals, Ltd.
Shin Nakajima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Magnetic core for saturable reactor, magnetic amplifier type multi-...
Patent number
6,270,592
Issue date
Aug 7, 2001
Hitachi Metals, Ltd.
Shin Nakajima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Apparatus having an inverter
Patent number
5,850,336
Issue date
Dec 15, 1998
Hitachi Metals, Ltd.
Shin Nakajima
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Magnetic core for pulse transformer and pulse transformer made thereof
Patent number
5,725,686
Issue date
Mar 10, 1998
Hitachi Metals, Ltd.
Yoshihito Yoshizawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Active filter circuit and power supply apparatus including same
Patent number
5,635,828
Issue date
Jun 3, 1997
Hitachi Metals, Ltd.
Yoshihito Yoshizawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
High-voltage pulse generating circuit and electrostatic recipitator...
Patent number
5,623,171
Issue date
Apr 22, 1997
Hitachi Metals, Ltd.
Shin Nakajima
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Method of producing nanocrystalline alloy having high permeability
Patent number
5,611,871
Issue date
Mar 18, 1997
Hitachi Metals, Ltd.
Yoshihito Yoshizawa
C21 - METALLURGY OF IRON
Information
Patent Grant
Nano-crystalline soft magnetic alloy ribbon with insulation coating...
Patent number
5,486,404
Issue date
Jan 23, 1996
Hitachi Metals, Ltd.
Shin Nakajima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Surge current-suppressing circuit and magnetic device therein
Patent number
5,443,664
Issue date
Aug 22, 1995
Hitachi Metals, Ltd.
Shin Nakajima
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
High-voltage pulse generating circuit, and discharge-excited laser...
Patent number
5,184,085
Issue date
Feb 2, 1993
Hitachi Metals, Ltd.
Shin Nakajima
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
High-voltage pulse generating circuit, and discharge-excited laser...
Patent number
5,072,191
Issue date
Dec 10, 1991
Hitachi Metals, Ltd.
Shin Nakajima
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Magnetic device for high-voltage pulse generating apparatuses
Patent number
4,983,859
Issue date
Jan 8, 1991
Hitachi Metals, Ltd.
Shin Nakajima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
High-voltage pulse generating apparatus
Patent number
4,871,925
Issue date
Oct 3, 1989
Hitachi Metals, Ltd.
Kiyotaka Yamauchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for measuring losses of a magnetic core
Patent number
4,827,214
Issue date
May 2, 1989
Hitachi Metals, Ltd.
Shin Nakajima
G01 - MEASURING TESTING
Information
Patent Grant
DC-DC converter with saturable reactor reset circuit
Patent number
4,811,187
Issue date
Mar 7, 1989
Hitachi Metals Ltd.
Shin Nakajima
G05 - CONTROLLING REGULATING
Information
Patent Grant
Magnetic core
Patent number
4,769,091
Issue date
Sep 6, 1988
Hitachi Metals Ltd.
Yoshihito Yoshizawa
C21 - METALLURGY OF IRON
Information
Patent Grant
Switch mode power supply having magnetically controlled output
Patent number
4,626,976
Issue date
Dec 2, 1986
Hitachi, Ltd.
Kozin Abe
G05 - CONTROLLING REGULATING
Patents Applications
last 30 patents
Information
Patent Application
Magnetic core for saturable reactor, magnetic amplifier type multi-...
Publication number
20010032685
Publication date
Oct 25, 2001
Shin Nakajima
H01 - BASIC ELECTRIC ELEMENTS