Teruhiko Fujiwara

Person

Sendai-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Rare earth cobalt-based permanent magnet
- Patent number 11,380,465
- Issue date Jul 5, 2022
- Kyushu Institute of Technology
- Masaaki Takezawa
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Amorphous soft magnetic alloy and inductance component using the same
- Patent number 10,984,932
- Issue date Apr 20, 2021
- Tokin Corporation
- Akiri Urata
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Rare earth-cobalt permanent magnet
- Patent number 10,497,496
- Issue date Dec 3, 2019
- TOKIN CORPORATION
- Hiroaki Machida
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Inductance device, filter device comprising the same, and noise fil...
- Patent number 7,714,683
- Issue date May 11, 2010
- NEC TOKIN Corporation
- Masahiko Takahashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for manufacturing bonded magnet and method for manufacturing...
- Patent number 7,531,050
- Issue date May 12, 2009
- NEC TOKIN Corporation
- Shigun Oh
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Magnetic core for high frequency and inductive component using same
- Patent number 7,170,378
- Issue date Jan 30, 2007
- NEC TOKIN Corporation
- Teruhiko Fujiwara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Magnetically biasing bond magnet for improving DC superposition cha...
- Patent number 6,995,643
- Issue date Feb 7, 2006
- NEC Tokin Corporation
- Teruhiko Fujiwara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Magnetic core including magnet for magnetic bias and inductor compo...
- Patent number 6,906,608
- Issue date Jun 14, 2005
- NEC TOKIN Corporation
- Teruhiko Fujiwara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Magnetically biasing bond magnet for improving DC superposition cha...
- Patent number 6,856,231
- Issue date Feb 15, 2005
- NEC Tokin Corporaton
- Teruhiko Fujiwara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Powder core and high-frequency reactor using the same
- Patent number 6,788,185
- Issue date Sep 7, 2004
- NEC Tokin Corporation
- Teruhiko Fujiwara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Inductance component having a permanent magnet in the vicinity of a...
- Patent number 6,778,056
- Issue date Aug 17, 2004
- NEC TOKIN Corporation
- Toru Ito
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Magnetic core including magnet for magnetic bias and inductor compo...
- Patent number 6,753,751
- Issue date Jun 22, 2004
- NEC TOKIN Corporation
- Teruhiko Fujiwara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Inductor component having a permanent magnet in the vicinity of mag...
- Patent number 6,734,771
- Issue date May 11, 2004
- NEC TOKIN Corporation
- Kazuyuki Okita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Magnetic core including bias magnet and inductor component using th...
- Patent number 6,717,504
- Issue date Apr 6, 2004
- NEC TOKIN Corporation
- Teruhiko Fujiwara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Inductor component containing permanent magnet for magnetic bias an...
- Patent number 6,710,693
- Issue date Mar 23, 2004
- NEC TOKIN Corporation
- Hatsuo Matsumoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Powder core and reactor using the same
- Patent number 6,646,532
- Issue date Nov 11, 2003
- NEC TOKIN Corporation
- Teruhiko Fujiwara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Inductance component in which a permanent magnet for applying a mag...
- Patent number 6,639,499
- Issue date Oct 28, 2003
- NEC TOKIN Corporation
- Kazuyuki Okita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Magnetic core comprising a bond magnet including magnetic powder wh...
- Patent number 6,621,398
- Issue date Sep 16, 2003
- NEC TOKIN Corporation
- Teruhiko Fujiwara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Powder core and high-frequency reactor using the same
- Patent number 6,621,399
- Issue date Sep 16, 2003
- NEC Tokin Corporation
- Teruhiko Fujiwara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Magnetic core, coil assembly and power supply circuit using the same
- Patent number 6,611,187
- Issue date Aug 26, 2003
- NEC TOKIN Corporation
- Hatsuo Matsumoto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Magnetic core having magnetically biasing bond magnet and inductanc...
- Patent number 6,590,485
- Issue date Jul 8, 2003
- NEC TOKIN Corporation
- Teruhiko Fujiwara
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
PERMANENT MAGNET AND DEVICE
- Publication number 20240047104
- Publication date Feb 8, 2024
- Kyushu Institute of Technology
- Masaaki TAKEZAWA
- B22 - CASTING POWDER METALLURGY
Information Patent Application
PERMANENT MAGNET AND DEVICE
- Publication number 20230095210
- Publication date Mar 30, 2023
- TOKIN CORPORATION
- Hiroaki MACHIDA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
RARE-EARTH COBALT PERMANENT MAGNET, MANUFACTURING METHOD THEREFOR,...
- Publication number 20210249165
- Publication date Aug 12, 2021
- TOKIN CORPORATION
- Hiroaki MACHIDA
- B22 - CASTING POWDER METALLURGY
Information Patent Application
RARE-EARTH COBALT PERMANENT MAGNET, MANUFACTURING METHOD THEREFOR,...
- Publication number 20210241948
- Publication date Aug 5, 2021
- TOKIN CORPORATION
- Hirokazu MAKUTA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
RARE-EARTH COBALT PERMANENT MAGNET, METHOD OF MANUFACTURING THE SAM...
- Publication number 20200365301
- Publication date Nov 19, 2020
- Kyushu Institute of Technology
- Masaaki TAKEZAWA
- B22 - CASTING POWDER METALLURGY
Information Patent Application
RARE EARTH-COBALT PERMANENT MAGNET
- Publication number 20200243232
- Publication date Jul 30, 2020
- KYUSHU INSTITUTE OF TECHNOLOGY
- Masaaki TAKEZAWA
- B22 - CASTING POWDER METALLURGY
Information Patent Application
AMORPHOUS SOFT MAGNETIC ALLOY AND INDUCTANCE COMPONENT USING THE SAME
- Publication number 20170294254
- Publication date Oct 12, 2017
- TOKIN CORPORATION
- Akiri URATA
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
RARE EARTH-COBALT PERMANENT MAGNET
- Publication number 20150380134
- Publication date Dec 31, 2015
- NEC Tokin Corporation
- Hiroaki MACHIDA
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
RARE EARTH-COBALT PERMANENT MAGNET
- Publication number 20150262740
- Publication date Sep 17, 2015
- NEC Tokin Corporation
- Teruhiko FUJIWARA
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Inductance device, filter device comprising the same, and noise fil...
- Publication number 20080084254
- Publication date Apr 10, 2008
- NEC Tokin Corporation
- Masahiko Takahashi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Amorphous soft magnetic alloy and inductance component using the same
- Publication number 20070175545
- Publication date Aug 2, 2007
- NEC Tokin Corporation
- Akiri Urata
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Method for manufacturing bonded magnet and method for manufacturing...
- Publication number 20060280921
- Publication date Dec 14, 2006
- Shigun Oh
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Magnetic core for high frequency and inductive component using same
- Publication number 20060170524
- Publication date Aug 3, 2006
- Teruhiko Fujiwara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
High-frequency core and inductance component using the same
- Publication number 20050254989
- Publication date Nov 17, 2005
- NEC Tokin Corporation
- Teruhiko Fujiwara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Magnetically biasing bond magnet for improving DC superposition cha...
- Publication number 20050116804
- Publication date Jun 2, 2005
- NEC Tokin Corporation
- Teruhiko Fujiwara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Magnetic core including magnet for magnetic bias and inductor compo...
- Publication number 20040207500
- Publication date Oct 21, 2004
- NEC Tokin Corporation
- Teruhiko Fujiwara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Inductor component containing permanent magnet for magnetic bias an...
- Publication number 20040168303
- Publication date Sep 2, 2004
- NEC Tokin Corporation
- Hatsuo Matsumoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Powder core and high-frequency reactor using the same
- Publication number 20040021542
- Publication date Feb 5, 2004
- NEC Tokin Corporation
- Teruhiko Fujiwara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
POWDER CORE AND REACTOR USING THE SAME
- Publication number 20030160677
- Publication date Aug 28, 2003
- NEC Tokin Corporation
- Teruhiko Fujiwara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
POWDER CORE AND HIGH-FREQUENCY REACTOR USING THE SAME
- Publication number 20030150523
- Publication date Aug 14, 2003
- NEC TOKIN CORPORATION
- Teruhiko Fujiwara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Inductor component containing permanent magnet for magnetic bias an...
- Publication number 20020190830
- Publication date Dec 19, 2002
- TOKIN CORPORATION
- Hatsuo Matsumoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Magnetic core, coil assembly and power supply circuit using the same
- Publication number 20020159277
- Publication date Oct 31, 2002
- TOKIN CORPORATION
- Hatsuo Matsumoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Magnetically biasing bond magnet for improving DC superposition cha...
- Publication number 20020149458
- Publication date Oct 17, 2002
- TOKIN CORPORATION
- Teruhiko Fujiwara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Magnetic core comprising a bond magnet including magnetic powder wh...
- Publication number 20020109571
- Publication date Aug 15, 2002
- TOKIN CORPORATION
- Teruhiko Fujiwara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Magnetic core including magnet for magnetic bias and inductor compo...
- Publication number 20020097126
- Publication date Jul 25, 2002
- TOKIN CORPORATION
- Teruhiko Fujiwara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Magnetic core including bias magnet and inductor component using th...
- Publication number 20020097127
- Publication date Jul 25, 2002
- Tokin Corporation
- Teruhiko Fujiwara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Magnetic core having magnetically biasing bond magnet and inductanc...
- Publication number 20020093409
- Publication date Jul 18, 2002
- TOKIN CORPORATION
- Teruhiko Fujiwara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Inductor component having a permanent magnet in the vicinity of mag...
- Publication number 20020089400
- Publication date Jul 11, 2002
- TOKIN CORPORATION
- Kazuyuki Okita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Inductance component in which a permanent magnet for applying a mag...
- Publication number 20020050905
- Publication date May 2, 2002
- TOKIN CORPORATION
- Kazuyuki Okita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Inductance component having a permanent magnet in the vicinity of a...
- Publication number 20020033747
- Publication date Mar 21, 2002
- TOKIN CORPORATION
- Toru Ito
- H01 - BASIC ELECTRIC ELEMENTS

Teruhiko Fujiwara

Person

Patents Grantslast 30 patents

Rare earth cobalt-based permanent magnet

Amorphous soft magnetic alloy and inductance component using the same

Rare earth-cobalt permanent magnet

Inductance device, filter device comprising the same, and noise fil...

Method for manufacturing bonded magnet and method for manufacturing...

Magnetic core for high frequency and inductive component using same

Magnetically biasing bond magnet for improving DC superposition cha...

Magnetic core including magnet for magnetic bias and inductor compo...

Magnetically biasing bond magnet for improving DC superposition cha...

Powder core and high-frequency reactor using the same

Inductance component having a permanent magnet in the vicinity of a...

Magnetic core including magnet for magnetic bias and inductor compo...

Inductor component having a permanent magnet in the vicinity of mag...

Magnetic core including bias magnet and inductor component using th...

Inductor component containing permanent magnet for magnetic bias an...

Powder core and reactor using the same

Inductance component in which a permanent magnet for applying a mag...

Magnetic core comprising a bond magnet including magnetic powder wh...

Powder core and high-frequency reactor using the same

Magnetic core, coil assembly and power supply circuit using the same

Magnetic core having magnetically biasing bond magnet and inductanc...

Patents Applicationslast 30 patents

PERMANENT MAGNET AND DEVICE

PERMANENT MAGNET AND DEVICE

RARE-EARTH COBALT PERMANENT MAGNET, MANUFACTURING METHOD THEREFOR,...

RARE-EARTH COBALT PERMANENT MAGNET, MANUFACTURING METHOD THEREFOR,...

RARE-EARTH COBALT PERMANENT MAGNET, METHOD OF MANUFACTURING THE SAM...

RARE EARTH-COBALT PERMANENT MAGNET

AMORPHOUS SOFT MAGNETIC ALLOY AND INDUCTANCE COMPONENT USING THE SAME

RARE EARTH-COBALT PERMANENT MAGNET

RARE EARTH-COBALT PERMANENT MAGNET

Inductance device, filter device comprising the same, and noise fil...

Amorphous soft magnetic alloy and inductance component using the same

Method for manufacturing bonded magnet and method for manufacturing...

Magnetic core for high frequency and inductive component using same

High-frequency core and inductance component using the same

Magnetically biasing bond magnet for improving DC superposition cha...

Magnetic core including magnet for magnetic bias and inductor compo...

Inductor component containing permanent magnet for magnetic bias an...

Powder core and high-frequency reactor using the same

POWDER CORE AND REACTOR USING THE SAME

POWDER CORE AND HIGH-FREQUENCY REACTOR USING THE SAME

Inductor component containing permanent magnet for magnetic bias an...

Magnetic core, coil assembly and power supply circuit using the same

Magnetically biasing bond magnet for improving DC superposition cha...

Magnetic core comprising a bond magnet including magnetic powder wh...

Magnetic core including magnet for magnetic bias and inductor compo...

Magnetic core including bias magnet and inductor component using th...

Magnetic core having magnetically biasing bond magnet and inductanc...

Inductor component having a permanent magnet in the vicinity of mag...

Inductance component in which a permanent magnet for applying a mag...

Inductance component having a permanent magnet in the vicinity of a...