Seiji Ishitani

Person

Hiroshima, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Soft magnetic material, powder magnetic core and method of manufact...
- Patent number 8,323,725
- Issue date Dec 4, 2012
- Sumitomo Electric Industries, Ltd.
- Toru Maeda
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Soft magnetic material comprising an insulating layer containing al...
- Patent number 8,153,256
- Issue date Apr 10, 2012
- Sumitomo Electric Industries, Ltd
- Toru Maeda
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Soft magnetic material, powder magnetic core and method of manufact...
- Patent number 7,767,034
- Issue date Aug 3, 2010
- Sumitomo Electric Industries, Ltd.
- Toru Maeda
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Hematite particles aggregates, non-magnetic undercoatt layer for ma...
- Patent number 6,723,456
- Issue date Apr 20, 2004
- Toda Kogyo Corporation
- Kazuyuki Hayashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 6,689,452
- Issue date Feb 10, 2004
- Toda Kogyo Corporation
- Mamoru Kamigaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Black magnetic toner
- Patent number 6,638,675
- Issue date Oct 28, 2003
- Toda Kogyo Corporation
- Kazuyuki Hayashi
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Black magnetic toner and black magnetic composite particles therefor
- Patent number 6,562,532
- Issue date May 13, 2003
- Toda Kogyo Corporation
- Kazuyuki Hayashi
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Magnetic recording medium
- Patent number 6,458,453
- Issue date Oct 1, 2002
- Toda Kogyo Corporation
- Kazuyuki Hayashi
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Black magnetic composite particles for a black magnetic toner
- Patent number 6,416,864
- Issue date Jul 9, 2002
- Toda Kogyo Corporation
- Kazuyuki Hayashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Black magnetic toner and black magnetic composite particles therefor
- Patent number 6,379,855
- Issue date Apr 30, 2002
- Toda Kogyo Corporation
- Kazuyuki Hayashi
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Black magnetic composite particles for black magnetic toner and bla...
- Patent number 6,251,555
- Issue date Jun 26, 2001
- Toda Kogyo Corporation
- Kazuyuki Hayashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Black non-magnetic composite particles for black toner and black to...
- Patent number 6,130,017
- Issue date Oct 10, 2000
- Toda Kogyo Corporation
- Kazuyuki Hayashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
NON-MAGNETIC PARTICLES FOR NON-MAGNETIC UNDERCOAT LAYER OF MAGNETIC...
- Publication number 20140322437
- Publication date Oct 30, 2014
- Seiji ISHITANI
- B82 - NANO-TECHNOLOGY
Information Patent Application
MANUFACTURING METHOD OF SOFT MAGNETIC MATERIAL AND MANUFACTURING ME...
- Publication number 20120164320
- Publication date Jun 28, 2012
- TODA KOGYO CORP.
- Toru Maeda
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
SOFT MAGNETIC MATERIAL, POWDER MAGNETIC CORE AND METHOD OF MANUFACT...
- Publication number 20100255188
- Publication date Oct 7, 2010
- Sumitomo Electric Industries, Ltd.
- Toru MAEDA
- B22 - CASTING POWDER METALLURGY
Information Patent Application
PROCESS FOR PRODUCING FERROMAGNETIC METAL PARTICLES AND MAGNETIC RE...
- Publication number 20100035087
- Publication date Feb 11, 2010
- TODA KOGYO CORPORATION
- Hiroko Morii
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
FERROMAGNETIC METAL PARTICLES AND PROCESS FOR PRODUCING THE SAME, A...
- Publication number 20090220823
- Publication date Sep 3, 2009
- TODA KOGYO CORPORATION
- Hiroko MORII
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
SOFT MAGNETIC MATERIAL, DUST MAGNETIC CORE, PROCESS FOR PRODUCING S...
- Publication number 20090047519
- Publication date Feb 19, 2009
- Sumitomo Electric Industries, Ltd.
- Toru Maeda
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
NON-MAGNETIC PARTICLES FOR NON-MAGNETIC UNDERCOAT LAYER OF MAGNETIC...
- Publication number 20090042064
- Publication date Feb 12, 2009
- TODA KOGYO CORPORATION
- Seiji ISHITANI
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
Soft Magnetic Material, Method of Manufacturing Soft Magnetic Mater...
- Publication number 20080248245
- Publication date Oct 9, 2008
- Toru Maeda
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Soft Magnetic Material, Powder Magnetic Core and Method of Manufact...
- Publication number 20070235109
- Publication date Oct 11, 2007
- Toru Maeda
- B22 - CASTING POWDER METALLURGY
Information Patent Application
Magnetic composite particles for magnetic color toner, magnetic col...
- Publication number 20030175518
- Publication date Sep 18, 2003
- Seiji Ishitani
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Black magnetic toner
- Publication number 20030073016
- Publication date Apr 17, 2003
- Toda Kogyo Corp.
- Kazuyuki Hayashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Magnetic recording medium
- Publication number 20030031895
- Publication date Feb 13, 2003
- Mamoru Kamigaki
- G11 - INFORMATION STORAGE
Information Patent Application
Black magnetic toner and black magnetic composite particles therefor
- Publication number 20020192584
- Publication date Dec 19, 2002
- Kazuyuki Hayashi
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Hematite particles aggregates, non-magnetic undercoatt layer for ma...
- Publication number 20020136928
- Publication date Sep 26, 2002
- Kazuyuki Hayashi
- G11 - INFORMATION STORAGE

Seiji Ishitani

Person

Patents Grantslast 30 patents

Soft magnetic material, powder magnetic core and method of manufact...

Soft magnetic material comprising an insulating layer containing al...

Soft magnetic material, powder magnetic core and method of manufact...

Hematite particles aggregates, non-magnetic undercoatt layer for ma...

Magnetic recording medium

Black magnetic toner

Black magnetic toner and black magnetic composite particles therefor

Magnetic recording medium

Black magnetic composite particles for a black magnetic toner

Black magnetic toner and black magnetic composite particles therefor

Black magnetic composite particles for black magnetic toner and bla...

Black non-magnetic composite particles for black toner and black to...

Patents Applicationslast 30 patents

NON-MAGNETIC PARTICLES FOR NON-MAGNETIC UNDERCOAT LAYER OF MAGNETIC...

MANUFACTURING METHOD OF SOFT MAGNETIC MATERIAL AND MANUFACTURING ME...

SOFT MAGNETIC MATERIAL, POWDER MAGNETIC CORE AND METHOD OF MANUFACT...

PROCESS FOR PRODUCING FERROMAGNETIC METAL PARTICLES AND MAGNETIC RE...

FERROMAGNETIC METAL PARTICLES AND PROCESS FOR PRODUCING THE SAME, A...

SOFT MAGNETIC MATERIAL, DUST MAGNETIC CORE, PROCESS FOR PRODUCING S...

NON-MAGNETIC PARTICLES FOR NON-MAGNETIC UNDERCOAT LAYER OF MAGNETIC...

Soft Magnetic Material, Method of Manufacturing Soft Magnetic Mater...

Soft Magnetic Material, Powder Magnetic Core and Method of Manufact...

Magnetic composite particles for magnetic color toner, magnetic col...

Black magnetic toner

Magnetic recording medium

Black magnetic toner and black magnetic composite particles therefor

Hematite particles aggregates, non-magnetic undercoatt layer for ma...