Yoshihiro Hamakawa

Person

Kokubunji, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Magnetoresistive head and magnetic storage apparatus
- Patent number 6,515,837
- Issue date Feb 4, 2003
- Hitachi, Ltd.
- Yoshihiro Hamakawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head employing magnetoresistive sensor and magnetic storag...
- Patent number 6,327,123
- Issue date Dec 4, 2001
- Hitachi, Ltd.
- Yoshiaki Kawato
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Magnetic layered material, and magnetic sensor and magnetic storage...
- Patent number 6,087,027
- Issue date Jul 11, 2000
- Hitachi, Ltd.
- Hiroyuki Hoshiya
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Magnetic layered material, and magnetic sensor and magnetic storage...
- Patent number 5,843,589
- Issue date Dec 1, 1998
- Hitachi, Ltd.
- Hiroyuki Hoshiya
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Magnetic head and recording and reproducing apparatus having an arr...
- Patent number 5,719,729
- Issue date Feb 17, 1998
- Hitachi, Ltd.
- Naoki Koyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetoresistive read head and magnetic storage system using the same
- Patent number 5,461,526
- Issue date Oct 24, 1995
- Hitachi, Ltd.
- Yoshihiro Hamakawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Stack type optical disc apparatus, sealed and separate type optical...
- Patent number 5,235,591
- Issue date Aug 10, 1993
- Hitachi, Ltd.
- Shigeru Nakamura
- G11 - INFORMATION STORAGE
Information Patent Grant
Thin film magnetic head having at least one magnetic core member ma...
- Patent number 5,126,907
- Issue date Jun 30, 1992
- Hitachi, Ltd.
- Yoshihiro Hamakawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Thin film magnetic head including magnetic layers having high satur...
- Patent number 4,943,879
- Issue date Jul 24, 1990
- Hitachi, Ltd.
- Hisashi Takano
- G11 - INFORMATION STORAGE
Information Patent Grant
Thin film magnetic head
- Patent number 4,881,144
- Issue date Nov 14, 1989
- Hitachi, Ltd.
- Isamu Yuito
- G11 - INFORMATION STORAGE
Information Patent Grant
Multilayered magnetic films and thin-film magnetic heads using the...
- Patent number 4,814,921
- Issue date Mar 21, 1989
- Hitachi, Ltd.
- Yoshihiro Hamakawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head made from amorphous magnetic film
- Patent number 4,766,039
- Issue date Aug 23, 1988
- Hitachi, Ltd.
- Shigekazu Otomo
- G11 - INFORMATION STORAGE
Information Patent Grant
Ferromagnetic material and a magnetic head using the same material
- Patent number 4,762,755
- Issue date Aug 9, 1988
- Hitachi, Ltd.
- Kazuo Shiiki
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Thin film magnetic head having an improved coil
- Patent number 4,760,481
- Issue date Jul 26, 1988
- Hitachi, Ltd.
- Isamu Yuito
- G11 - INFORMATION STORAGE

Yoshihiro Hamakawa

Person

Patents Grantslast 30 patents

Magnetoresistive head and magnetic storage apparatus

Magnetic head employing magnetoresistive sensor and magnetic storag...

Magnetic layered material, and magnetic sensor and magnetic storage...

Magnetic layered material, and magnetic sensor and magnetic storage...

Magnetic head and recording and reproducing apparatus having an arr...

Magnetoresistive read head and magnetic storage system using the same

Stack type optical disc apparatus, sealed and separate type optical...

Thin film magnetic head having at least one magnetic core member ma...

Thin film magnetic head including magnetic layers having high satur...

Thin film magnetic head

Multilayered magnetic films and thin-film magnetic heads using the...

Magnetic head made from amorphous magnetic film

Ferromagnetic material and a magnetic head using the same material

Thin film magnetic head having an improved coil