Koji AGA

Person

Chiba, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Ferrite powder and method for producing same
- Patent number 12,134,567
- Issue date Nov 5, 2024
- Powdertech Co., Ltd.
- Takashi Kojima
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Ferrite powder and method of producing the same
- Patent number 12,119,151
- Issue date Oct 15, 2024
- Powdertech Co., Ltd.
- Koji Aga
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Mn ferrite powder, resin composition, electromagnetic wave shieldin...
- Patent number 11,952,286
- Issue date Apr 9, 2024
- Powdertech Co., Ltd.
- Koji Aga
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Mn—Zn ferrite particles, resin molded body, soft magnetic mixed pow...
- Patent number 11,651,881
- Issue date May 16, 2023
- Powdertech Co., Ltd.
- Takashi Kojima
- C30 - CRYSTAL GROWTH
Information Patent Grant
Iron oxide powder for brake friction material
- Patent number 11,572,926
- Issue date Feb 7, 2023
- Powdertech Co., Ltd.
- Koji Aga
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Ferrite particles, resin compositions and electromagnetic wave shie...
- Patent number 11,542,174
- Issue date Jan 3, 2023
- Powdertech Co., Ltd.
- Takashi Kojima
- C30 - CRYSTAL GROWTH
Information Patent Grant
Ferrite powder, resin composition, and molded body
- Patent number 11,521,768
- Issue date Dec 6, 2022
- Powdertech Co., Ltd.
- Kazutaka Ishii
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Iron oxide powder for brake friction material
- Patent number 11,359,689
- Issue date Jun 14, 2022
- Powdertech Co., Ltd.
- Koji Aga
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Ferrite powder, resin composition, and molded article
- Patent number 11,072,537
- Issue date Jul 27, 2021
- Powdertech Co., Ltd.
- Koji Aga
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Ferrite powder, resin composition, electromagnetic shielding materi...
- Patent number 11,032,955
- Issue date Jun 8, 2021
- Powdertech Co., Ltd.
- Koji Aga
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Ferrite particles, resin composition and resin film
- Patent number 11,014,826
- Issue date May 25, 2021
- Powdertech Co., Ltd.
- Takashi Kojima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Iron oxide powder for brake friction material
- Patent number 10,919,779
- Issue date Feb 16, 2021
- Powdertech Co., Ltd.
- Koji Aga
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Ni—Zn—Cu ferrite particle, resin composition, and resin molding
- Patent number 10,825,593
- Issue date Nov 3, 2020
- Powdertech Co., Ltd.
- Takashi Kojima
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Ferrite carrier core material for electrophotographic developer, fe...
- Patent number 10,775,711
- Issue date Sep 15, 2020
- Powdertech Co., Ltd.
- Takao Sugiura
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Ferrite particles having outer shell structure used for filtering m...
- Patent number 10,603,614
- Issue date Mar 31, 2020
- Powdertech Co., Ltd.
- Koji Aga
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Spherical ferrite particles in nano-size and method of manufacturin...
- Patent number 10,593,454
- Issue date Mar 17, 2020
- Powdertech Co., Ltd.
- Koji Aga
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Ferrite particle having outer shell structure
- Patent number 10,585,369
- Issue date Mar 10, 2020
- Powdertech Co., Ltd.
- Koji Aga
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Ferrite carrier core material for electrophotographic developer, fe...
- Patent number 10,564,561
- Issue date Feb 18, 2020
- Powdertech Co., Ltd.
- Takao Sugiura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Spherical ferrite powder, resin compound including spherical ferrit...
- Patent number 10,501,333
- Issue date Dec 10, 2019
- Powdertech Co., Ltd.
- Koji Aga
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Ferrite particles provided with outer shell structure for catalyst...
- Patent number 10,258,970
- Issue date Apr 16, 2019
- Powdertech Co., Ltd.
- Koji Aga
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Ferrite particle having outer shell structure, ferrite carrier core...
- Patent number 9,372,426
- Issue date Jun 21, 2016
- Powdertech Co., Ltd.
- Koji Aga
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Porous ferrite core material for electrophotographic developer, res...
- Patent number 9,201,329
- Issue date Dec 1, 2015
- Powdertech Co., Ltd.
- Koji Aga
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Ferrite carrier core material and ferrite carrier for electrophotog...
- Patent number 9,081,318
- Issue date Jul 14, 2015
- Powdertech Co., Ltd.
- Tomoyuki Suwa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Carrier core material and carrier for electrophotographic developer...
- Patent number 8,895,218
- Issue date Nov 25, 2014
- Powdertech Co., Ltd.
- Takashi Kojima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Porous ferrite core material for electrophotographic developer, res...
- Patent number 8,728,699
- Issue date May 20, 2014
- Powedertech Co., Ltd.
- Toru Iwata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Ferrite core material and ferrite carrier for electrophotographic d...
- Patent number 8,535,867
- Issue date Sep 17, 2013
- Powdertech Co., Ltd.
- Tomoyuki Suwa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Ferrite carrier core material and ferrite carrier for electrophotog...
- Patent number 8,465,898
- Issue date Jun 18, 2013
- Powdertech Co., Ltd.
- Toru Iwata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Carrier core material for electrophotographic developer, carrier, a...
- Patent number 8,039,190
- Issue date Oct 18, 2011
- Mitsui Mining & Smelting Co., Ltd.
- Yasunori Tabira
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Granulating method, granulated particle(s) and granulating device
- Patent number 7,914,715
- Issue date Mar 29, 2011
- Powdertech Co., Ltd.
- Koji Aga
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Carrier core material for electrophotographic developer, carrier an...
- Patent number 7,879,522
- Issue date Feb 1, 2011
- Powdertech Co., Ltd.
- Koji Aga
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
FERRITE POWDER, FERRITE RESIN COMPOSITE MATERIAL, AND ELECTROMAGNET...
- Publication number 20240182323
- Publication date Jun 6, 2024
- POWDERTECH CO., LTD.
- Tatsuto KANEKO
- C01 - INORGANIC CHEMISTRY
Information Patent Application
FERRITE POWDER AND METHOD OF PRODUCING THE SAME
- Publication number 20230085745
- Publication date Mar 23, 2023
- Powdertech Co., Ltd.
- Koji AGA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
FERRITE POWDER AND METHOD FOR PRODUCING SAME
- Publication number 20230055795
- Publication date Feb 23, 2023
- Powdertech Co., Ltd.
- Takashi KOJIMA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
FERRITE POWDER, FERRITE RESIN COMPOSITE MATERIAL, AND ELECTROMAGNET...
- Publication number 20220340444
- Publication date Oct 27, 2022
- POWDERTECH CO., LTD.
- Koji AGA
- C01 - INORGANIC CHEMISTRY
Information Patent Application
IRON OXIDE POWDER FOR BRAKE FRICTION MATERIAL
- Publication number 20220163082
- Publication date May 26, 2022
- POWDERTECH CO., LTD.
- Koji AGA
- C01 - INORGANIC CHEMISTRY
Information Patent Application
COMPOSITE PARTICLES, POWDER, RESIN COMPOSITION AND MOULDED BODY
- Publication number 20210168974
- Publication date Jun 3, 2021
- POWDERTECH CO., LTD.
- Koji AGA
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
MN FERRITE POWDER, RESIN COMPOSITION, ELECTROMAGNETIC WAVE SHIELDIN...
- Publication number 20210047200
- Publication date Feb 18, 2021
- Powdertech Co., Ltd.
- Koji AGA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Mn-Zn FERRITE PARTICLES, RESIN MOLDED BODY, SOFT MAGNETIC MIXED POW...
- Publication number 20200251263
- Publication date Aug 6, 2020
- POWDERTECH CO., LTD.
- Takashi KOJIMA
- C01 - INORGANIC CHEMISTRY
Information Patent Application
FERRITE POWDER, RESIN COMPOSITION, AND MOLDED BODY
- Publication number 20200143966
- Publication date May 7, 2020
- Powdertech Co., Ltd.
- Kazutaka ISHII
- C01 - INORGANIC CHEMISTRY
Information Patent Application
IRON OXIDE POWDER FOR BRAKE FRICTION MATERIAL
- Publication number 20200003268
- Publication date Jan 2, 2020
- POWDERTECH CO., LTD.
- Koji AGA
- C01 - INORGANIC CHEMISTRY
Information Patent Application
FERRITE POWDER, RESIN COMPOSITION, ELECTROMAGNETIC SHIELDING MATERI...
- Publication number 20190343027
- Publication date Nov 7, 2019
- POWDERTECH CO., LTD.
- Koji AGA
- C01 - INORGANIC CHEMISTRY
Information Patent Application
IRON OXIDE POWDER FOR BRAKE FRICTION MATERIAL
- Publication number 20190337818
- Publication date Nov 7, 2019
- POWDERTECH CO., LTD.
- Koji AGA
- C01 - INORGANIC CHEMISTRY
Information Patent Application
NI-ZN-CU FERRITE PARTICLE, RESIN COMPOSITION, AND RESIN MOLDING
- Publication number 20190341177
- Publication date Nov 7, 2019
- POWDERTECH CO., LTD.
- Takashi KOJIMA
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
FERRITE PARTICLES, RESIN COMPOSITIONS AND ELECTROMAGNETIC WAVE SHIE...
- Publication number 20190300379
- Publication date Oct 3, 2019
- POWDERTECH CO., LTD.
- Takashi KOJIMA
- C30 - CRYSTAL GROWTH
Information Patent Application
FERRITE PARTICLES, RESIN COMPOSITION AND RESIN FILM
- Publication number 20190161362
- Publication date May 30, 2019
- POWDERTECH CO., LTD.
- Takashi KOJIMA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
FERRITE POWDER, RESIN COMPOSITION, AND MOLDED ARTICLE
- Publication number 20190135653
- Publication date May 9, 2019
- Powdertech Co., Ltd.
- Koji AGA
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Application
FERRITE CARRIER CORE MATERIAL FOR ELECTROPHOTOGRAPHIC DEVELOPER, FE...
- Publication number 20190086829
- Publication date Mar 21, 2019
- POWDERTECH CO., LTD.
- Takao SUGIURA
- C01 - INORGANIC CHEMISTRY
Information Patent Application
FERRITE CARRIER CORE MATERIAL FOR ELECTROPHOTOGRAPHIC DEVELOPER, FE...
- Publication number 20190079422
- Publication date Mar 14, 2019
- POWDERTECH CO., LTD.
- Takao SUGIURA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FERRITE POWDER, RESIN COMPOSITION, AND MOLDED ARTICLE
- Publication number 20190040226
- Publication date Feb 7, 2019
- Powdertech Co., Ltd.
- Koji AGA
- C01 - INORGANIC CHEMISTRY
Information Patent Application
SPHERICAL FERRITE POWDER, RESIN COMPOUND INCLUDING SPHERICAL FERRIT...
- Publication number 20180179082
- Publication date Jun 28, 2018
- POWDERTECH CO., LTD.
- Koji AGA
- C01 - INORGANIC CHEMISTRY
Information Patent Application
FERRITE PARTICLE HAVING OUTER SHELL STRUCTURE
- Publication number 20180011414
- Publication date Jan 11, 2018
- POWDERTECH CO., LTD.
- Koji AGA
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
FERRITE PARTICLES HAVING OUTER SHELL STRUCTURE USED FOR FILTERING M...
- Publication number 20180008921
- Publication date Jan 11, 2018
- POWDERTECH CO., LTD.
- Koji AGA
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
HEXAGONAL PLATE SHAPED FERRITE POWDER, MANUFACTURING METHOD THEREOF...
- Publication number 20180009677
- Publication date Jan 11, 2018
- POWDERTECH CO., LTD.
- Koji AGA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
FERRITE PARTICLES PROVIDED WITH OUTER SHELL STRUCTURE FOR CATALYST...
- Publication number 20180008966
- Publication date Jan 11, 2018
- POWDERTECH CO., LTD.
- Koji AGA
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
MAGNETIC FILLER
- Publication number 20170369672
- Publication date Dec 28, 2017
- POWDERTECH CO., LTD.
- Koji AGA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
PLATE SHAPED FERRITE PARTICLES HAVING METALLIC LUSTER FOR PIGMENT
- Publication number 20170349449
- Publication date Dec 7, 2017
- POWDERTECH CO., LTD.
- Koji AGA
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
SPHERICAL FERRITE PARTICLES IN NANO-SIZE AND METHOD OF MANUFACTURIN...
- Publication number 20170301443
- Publication date Oct 19, 2017
- POWDERTECH CO., LTD.
- Koji AGA
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
FERRITE PARTICLE HAVING OUTER SHELL STRUCTURE, FERRITE CARRIER CORE...
- Publication number 20160070193
- Publication date Mar 10, 2016
- POWDERTECH CO., LTD.
- Koji AGA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
COMPOSITE MAGNETIC POWDER FOR NOISE SUPPRESSION
- Publication number 20160044838
- Publication date Feb 11, 2016
- POWDERTECH CO., LTD.
- Koji AGA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
POROUS FERRITE CORE MATERIAL FOR ELECTROPHOTOGRAPHIC DEVELOPER, RES...
- Publication number 20130183614
- Publication date Jul 18, 2013
- POWDERTECH CO., LTD.
- Koji AGA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Person

Patents Grantslast 30 patents

Ferrite powder and method for producing same

Ferrite powder and method of producing the same

Mn ferrite powder, resin composition, electromagnetic wave shieldin...

Mn—Zn ferrite particles, resin molded body, soft magnetic mixed pow...

Iron oxide powder for brake friction material

Ferrite particles, resin compositions and electromagnetic wave shie...

Ferrite powder, resin composition, and molded body

Iron oxide powder for brake friction material

Ferrite powder, resin composition, and molded article

Ferrite powder, resin composition, electromagnetic shielding materi...

Ferrite particles, resin composition and resin film

Iron oxide powder for brake friction material

Ni—Zn—Cu ferrite particle, resin composition, and resin molding

Ferrite carrier core material for electrophotographic developer, fe...

Ferrite particles having outer shell structure used for filtering m...

Spherical ferrite particles in nano-size and method of manufacturin...

Ferrite particle having outer shell structure

Ferrite carrier core material for electrophotographic developer, fe...

Spherical ferrite powder, resin compound including spherical ferrit...

Ferrite particles provided with outer shell structure for catalyst...

Ferrite particle having outer shell structure, ferrite carrier core...

Porous ferrite core material for electrophotographic developer, res...

Ferrite carrier core material and ferrite carrier for electrophotog...

Carrier core material and carrier for electrophotographic developer...

Porous ferrite core material for electrophotographic developer, res...

Ferrite core material and ferrite carrier for electrophotographic d...

Ferrite carrier core material and ferrite carrier for electrophotog...

Carrier core material for electrophotographic developer, carrier, a...

Granulating method, granulated particle(s) and granulating device

Carrier core material for electrophotographic developer, carrier an...

Patents Applicationslast 30 patents

FERRITE POWDER, FERRITE RESIN COMPOSITE MATERIAL, AND ELECTROMAGNET...

FERRITE POWDER AND METHOD OF PRODUCING THE SAME

FERRITE POWDER AND METHOD FOR PRODUCING SAME

FERRITE POWDER, FERRITE RESIN COMPOSITE MATERIAL, AND ELECTROMAGNET...

IRON OXIDE POWDER FOR BRAKE FRICTION MATERIAL

COMPOSITE PARTICLES, POWDER, RESIN COMPOSITION AND MOULDED BODY

MN FERRITE POWDER, RESIN COMPOSITION, ELECTROMAGNETIC WAVE SHIELDIN...

Mn-Zn FERRITE PARTICLES, RESIN MOLDED BODY, SOFT MAGNETIC MIXED POW...

FERRITE POWDER, RESIN COMPOSITION, AND MOLDED BODY

IRON OXIDE POWDER FOR BRAKE FRICTION MATERIAL

FERRITE POWDER, RESIN COMPOSITION, ELECTROMAGNETIC SHIELDING MATERI...

IRON OXIDE POWDER FOR BRAKE FRICTION MATERIAL

NI-ZN-CU FERRITE PARTICLE, RESIN COMPOSITION, AND RESIN MOLDING

FERRITE PARTICLES, RESIN COMPOSITIONS AND ELECTROMAGNETIC WAVE SHIE...

FERRITE PARTICLES, RESIN COMPOSITION AND RESIN FILM

FERRITE POWDER, RESIN COMPOSITION, AND MOLDED ARTICLE

FERRITE CARRIER CORE MATERIAL FOR ELECTROPHOTOGRAPHIC DEVELOPER, FE...

FERRITE CARRIER CORE MATERIAL FOR ELECTROPHOTOGRAPHIC DEVELOPER, FE...

FERRITE POWDER, RESIN COMPOSITION, AND MOLDED ARTICLE

SPHERICAL FERRITE POWDER, RESIN COMPOUND INCLUDING SPHERICAL FERRIT...

FERRITE PARTICLE HAVING OUTER SHELL STRUCTURE

FERRITE PARTICLES HAVING OUTER SHELL STRUCTURE USED FOR FILTERING M...

HEXAGONAL PLATE SHAPED FERRITE POWDER, MANUFACTURING METHOD THEREOF...

FERRITE PARTICLES PROVIDED WITH OUTER SHELL STRUCTURE FOR CATALYST...

MAGNETIC FILLER

PLATE SHAPED FERRITE PARTICLES HAVING METALLIC LUSTER FOR PIGMENT

SPHERICAL FERRITE PARTICLES IN NANO-SIZE AND METHOD OF MANUFACTURIN...

FERRITE PARTICLE HAVING OUTER SHELL STRUCTURE, FERRITE CARRIER CORE...

COMPOSITE MAGNETIC POWDER FOR NOISE SUPPRESSION

POROUS FERRITE CORE MATERIAL FOR ELECTROPHOTOGRAPHIC DEVELOPER, RES...