Ken Hirota

Person

Toyonaka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Composite material comprising metallic alloy grains coated with a d...
- Patent number 5,352,522
- Issue date Oct 4, 1994
- Matsushita Electric Industrial Co., Ltd.
- Koichi Kugimiya
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Magnetic sintered composite material
- Patent number 5,350,628
- Issue date Sep 27, 1994
- Matsushita Electric Industrial Company, Inc.
- Koichi Kugimiya
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic material
- Patent number 5,238,507
- Issue date Aug 24, 1993
- Matsushita Electric Industrial Co., Ltd.
- Koichi Kugimiya
- G11 - INFORMATION STORAGE
Information Patent Grant
Substrate material for magnetic head and magnetic head using same
- Patent number 5,217,818
- Issue date Jun 8, 1993
- Matsushita Electric Industrial Co., Ltd.
- Mitsuo Satomi
- G11 - INFORMATION STORAGE
Information Patent Grant
Composite material and a method for producing the same
- Patent number 5,183,631
- Issue date Feb 2, 1993
- Matsushita Electric Industrial Co., Ltd.
- Koichi Kugimiya
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Composite substrate
- Patent number 5,164,264
- Issue date Nov 17, 1992
- Matsushita Electric Industrial Co., Ltd.
- Koichi Kugimiya
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Laminated magnetic material and method of producing the same
- Patent number 5,104,739
- Issue date Apr 14, 1992
- Matsushita Electric Industrial Co., Ltd.
- Ken Hirota
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic material for a magnetic head
- Patent number 5,073,214
- Issue date Dec 17, 1991
- Matsushita Electric Industrial Co., Ltd.
- Ken Hirota
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Magnetic head
- Patent number 5,034,285
- Issue date Jul 23, 1991
- Matsushita Electric Industrial Co., Ltd.
- Mitsuo Satomi
- G11 - INFORMATION STORAGE
Information Patent Grant
Process for producing single-crystal ceramics
- Patent number 4,900,393
- Issue date Feb 13, 1990
- Matsushita Electric Industrial Co., Ltd.
- Koichi Kugimiya
- C30 - CRYSTAL GROWTH
Information Patent Grant
Magnetic head having a laminated structure
- Patent number 4,901,179
- Issue date Feb 13, 1990
- Matsushita Electric Industrial Co., Ltd.
- Mitsuo Satomi
- G11 - INFORMATION STORAGE
Information Patent Grant
Polycrystalline ferrite and a magnetic head using the same
- Patent number 4,521,323
- Issue date Jun 4, 1985
- Matsushita Electric Industrial Co., Ltd.
- Ken Hirota
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES

Person

Patents Grantslast 30 patents

Composite material comprising metallic alloy grains coated with a d...

Magnetic sintered composite material

Magnetic material

Substrate material for magnetic head and magnetic head using same

Composite material and a method for producing the same

Composite substrate

Laminated magnetic material and method of producing the same

Magnetic material for a magnetic head

Magnetic head

Process for producing single-crystal ceramics

Magnetic head having a laminated structure

Polycrystalline ferrite and a magnetic head using the same