Fumihiko Hirata

Person

Chiba, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Magnet powder, sintered magnet, process for producing them, bonded...
- Patent number 6,258,290
- Issue date Jul 10, 2001
- TDK Corporation
- Hitoshi Taguchi
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Process for the production of anisotropic ferrite magnets and aniso...
- Patent number 6,132,635
- Issue date Oct 17, 2000
- TDK Corporation
- Hitoshi Taguchi
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Magnet powder, sintered magnet, process for producing them, bonded...
- Patent number 6,086,781
- Issue date Jul 11, 2000
- TDK Corporation
- Hitoshi Taguchi
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Hexagonal system ferrite particles and their production process
- Patent number 5,945,028
- Issue date Aug 31, 1999
- TDK Corporation
- Hitoshi Taguchi
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Preparation of anisotropic hexagonal barium ferrite sintered magnet
- Patent number 5,811,024
- Issue date Sep 22, 1998
- TDK Corporation
- Hitoshi Taguchi
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Process for the production of anisotropic ferrite magnets
- Patent number 5,648,039
- Issue date Jul 15, 1997
- TDK Corporation
- Hitoshi Taguchi
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Hexagonal ba-ferrite sintered magnet, its making method, and polar...
- Patent number 5,607,615
- Issue date Mar 4, 1997
- TDK Corporation
- Hitoshi Taguchi
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES

Fumihiko Hirata

Person

Patents Grantslast 30 patents

Magnet powder, sintered magnet, process for producing them, bonded...

Process for the production of anisotropic ferrite magnets and aniso...

Magnet powder, sintered magnet, process for producing them, bonded...

Hexagonal system ferrite particles and their production process

Preparation of anisotropic hexagonal barium ferrite sintered magnet

Process for the production of anisotropic ferrite magnets

Hexagonal ba-ferrite sintered magnet, its making method, and polar...