Tokuho Takagaki

Person

Yokohama-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing magnetic head device
- Patent number 7,159,303
- Issue date Jan 9, 2007
- Hitachi Global Storage Technologies, Ltd.
- Ryoichi Nakatani
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic apparatus with perpendicular recording medium and head hav...
- Patent number 7,054,120
- Issue date May 30, 2006
- Hitachi Global Storage Technologies Japan, Ltd.
- Ryoichi Nakatani
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head with conductors formed on endlayers of a multilayer f...
- Patent number 6,687,099
- Issue date Feb 3, 2004
- Hitachi, Ltd.
- Ryoichi Nakatani
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk apparatus including magnetic head having multilayered...
- Patent number 6,483,677
- Issue date Nov 19, 2002
- Hitachi, Ltd.
- Ryoichi Nakatani
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetoresistance effect elements and magnetic heads using the tunn...
- Patent number 6,278,593
- Issue date Aug 21, 2001
- Hitachi, Ltd.
- Ryoichi Nakatani
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Magnetoresistance effect multilayer film with ferromagnetic film su...
- Patent number 6,011,674
- Issue date Jan 4, 2000
- Hitachi, Ltd.
- Ryoichi Nakatani
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Magnetic disk and method of and apparatus for manufacturing magneti...
- Patent number 5,879,569
- Issue date Mar 9, 1999
- Hitachi, Ltd.
- Hiroshi Matsumoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium having at least two magnetic layers with...
- Patent number 5,736,235
- Issue date Apr 7, 1998
- Hitachi, Ltd.
- Yoshibumi Matsuda
- G11 - INFORMATION STORAGE
Information Patent Grant
Multilayer magnetoresistance effect-type magnetic head
- Patent number 5,726,837
- Issue date Mar 10, 1998
- Hitachi, Ltd.
- Ryoichi Nakatani
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Magnetic recording medium and magnetic recording apparatus
- Patent number 5,587,235
- Issue date Dec 24, 1996
- Hitachi, Ltd.
- Hiroyuki Suzuki
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of head positioning and magnetic recording disk drive using...
- Patent number 5,568,331
- Issue date Oct 22, 1996
- Hitachi, Ltd.
- Kyo Akagi
- G11 - INFORMATION STORAGE
Information Patent Grant
Multilayer magnetoresistance effect-type magnetic head
- Patent number 5,390,061
- Issue date Feb 14, 1995
- Hitachi, Ltd.
- Ryoichi Nakatani
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Magnetic recording data storage system
- Patent number 5,325,244
- Issue date Jun 28, 1994
- Hitachi, Ltd.
- Hisashi Takano
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium and method of producing same
- Patent number 4,950,548
- Issue date Aug 21, 1990
- Hitachi, Ltd.
- Kenji Furusawa
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Magnetoresistance effect elements, magnetic heads and magnetic stor...
- Publication number 20060152862
- Publication date Jul 13, 2006
- Ryoichi Nakatani
- G01 - MEASURING TESTING
Information Patent Application
Magnetoresistance effect elements, magnetic heads and magnetic stor...
- Publication number 20040090850
- Publication date May 13, 2004
- Hitachi, Ltd.
- Ryoichi Nakatani
- G01 - MEASURING TESTING
Information Patent Application
Magnetoresistance effect elements, magnetic heads and magnetic stor...
- Publication number 20030117750
- Publication date Jun 26, 2003
- Hitachi, Ltd.
- Ryoichi Nakatani
- G01 - MEASURING TESTING
Information Patent Application
Magnetoresistance effect elements, magnetic heads and magnetic stor...
- Publication number 20020018325
- Publication date Feb 14, 2002
- Hitachi, Ltd.
- Ryoichi Nakatani
- B82 - NANO-TECHNOLOGY

Tokuho Takagaki

Person

Patents Grantslast 30 patents

Method for manufacturing magnetic head device

Magnetic apparatus with perpendicular recording medium and head hav...

Magnetic head with conductors formed on endlayers of a multilayer f...

Magnetic disk apparatus including magnetic head having multilayered...

Magnetoresistance effect elements and magnetic heads using the tunn...

Magnetoresistance effect multilayer film with ferromagnetic film su...

Magnetic disk and method of and apparatus for manufacturing magneti...

Magnetic recording medium having at least two magnetic layers with...

Multilayer magnetoresistance effect-type magnetic head

Magnetic recording medium and magnetic recording apparatus

Method of head positioning and magnetic recording disk drive using...

Multilayer magnetoresistance effect-type magnetic head

Magnetic recording data storage system

Magnetic recording medium and method of producing same

Patents Applicationslast 30 patents

Magnetoresistance effect elements, magnetic heads and magnetic stor...

Magnetoresistance effect elements, magnetic heads and magnetic stor...

Magnetoresistance effect elements, magnetic heads and magnetic stor...

Magnetoresistance effect elements, magnetic heads and magnetic stor...