Ryoichi Nakatani

Person

Urawa-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Magnetic field value measuring device and method for measuring magn...
- Patent number 9,482,692
- Issue date Nov 1, 2016
- Akita University
- Hitoshi Saito
- G01 - MEASURING TESTING
Information Patent Grant
Magnetic apparatus with perpendicular recording medium and head hav...
- Patent number 7,292,417
- Issue date Nov 6, 2007
- Hitachi Global Storage Technologies Japan, Ltd.
- Ryoichi Nakatani
- G11 - INFORMATION STORAGE
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 memory array, method for recording in a magnetic memory ar...
- Patent number 7,099,185
- Issue date Aug 29, 2006
- Osaka University
- Masahiko Yamamoto
- 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 memory element with vortex magnetization to control magnet...
- Patent number 6,950,332
- Issue date Sep 27, 2005
- Osaka University
- Masahiko Yamamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic memory, magnetic memory array, method for fabricating a ma...
- Patent number 6,940,750
- Issue date Sep 6, 2005
- Osaka University
- Masahiko Yamamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head with tunneling multi-layer magnetoresistive element b...
- Patent number 6,771,474
- Issue date Aug 3, 2004
- Hitachi, 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 recording apparatus with tunneling magnetoresistive elemen...
- Patent number 6,556,393
- Issue date Apr 29, 2003
- Hitachi, Ltd.
- Ryoichi Nakatani
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic device
- Patent number 6,525,532
- Issue date Feb 25, 2003
- Hitachi, Ltd.
- Toshihiko Sato
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head with tunneling magnetoresistive element biased by cur...
- Patent number 6,483,676
- Issue date Nov 19, 2002
- 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
Magnetic head and magnetic storage apparatus using the same
- Patent number 6,469,873
- Issue date Oct 22, 2002
- Hitachi, Ltd.
- Yoji Maruyama
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Tunneling magnetoresistive element using a bias magnetic field
- Patent number 6,418,001
- Issue date Jul 9, 2002
- Hitachi, Ltd.
- Ryoichi Nakatani
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Magnetic head with dual spin valve element for differential operation
- Patent number 6,392,849
- Issue date May 21, 2002
- Hitachi, Ltd.
- Yoji Maruyama
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Magnetic head
- Patent number 6,339,330
- Issue date Jan 15, 2002
- Hitachi, Ltd.
- Toshihiko Sato
- B82 - NANO-TECHNOLOGY
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
Tunneling magnetoresistive element and magnetic sensor using the same
- Patent number 6,232,777
- Issue date May 15, 2001
- Hitachi, Ltd.
- Toshihiko Sato
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Tunneling magnetoresistance element, and magnetic sensor, magnetic...
- Patent number 6,201,259
- Issue date Mar 13, 2001
- Hitachi, Ltd.
- Toshihiko Sato
- 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
Multilayer which shows magnetoresistive effect and magnetoresistive...
- Patent number 5,998,040
- Issue date Dec 7, 1999
- Hitachi, Ltd.
- Ryoichi Nakatani
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Heat resistant, high saturation magnetic flux density film
- Patent number 5,879,798
- Issue date Mar 9, 1999
- Hitachi, Ltd.
- Toshio Kobayashi
- B82 - NANO-TECHNOLOGY
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
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 film having a magnetic phase with crystallites of 200 A or...
- Patent number 5,290,629
- Issue date Mar 1, 1994
- Hitachi, Ltd.
- Toshio Kobayashi
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Antiferromagnetic film superior in corrosion resistance, magnetores...
- Patent number 5,287,237
- Issue date Feb 15, 1994
- Hitachi, Ltd.
- Masahiro Kitada
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Magnetic head having main and auxiliary magnetic paths
- Patent number 5,247,415
- Issue date Sep 21, 1993
- Hitachi, Ltd.
- Noriyuki Kumasaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic multilayered film and magnetic head using the same
- Patent number 4,935,311
- Issue date Jun 19, 1990
- Hitachi, Ltd.
- Ryoichi Nakatani
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Ferromagnetic film and magnetic head using the same
- Patent number 4,935,314
- Issue date Jun 19, 1990
- Hitachi, Ltd.
- Toshio Kobayashi
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
MAGNETIC FIELD VALUE MEASURING DEVICE AND METHOD FOR MEASURING MAGN...
- Publication number 20160109478
- Publication date Apr 21, 2016
- AKITA UNIVERSITY
- Hitoshi SAITO
- G01 - MEASURING TESTING
Information Patent Application
Magnetoresistance effect elements, magnetic heads and magnetic stor...
- Publication number 20070030604
- Publication date Feb 8, 2007
- Ryoichi Nakatani
- G01 - MEASURING TESTING
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
Magnetic memory array, method for recording in a magnetic memory ar...
- Publication number 20040165426
- Publication date Aug 26, 2004
- OSAKA UNIVERSITY
- Masahiko Yamamoto
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic memory, magnetic memory array, method for fabricating a ma...
- Publication number 20040130955
- Publication date Jul 8, 2004
- OSAKA UNIVERSITY
- Masahiko Yamamoto
- G11 - INFORMATION STORAGE
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
Magnetic memory, magnetic memory array, method for recording in a m...
- Publication number 20040080850
- Publication date Apr 29, 2004
- OSAKA UNIVERSITY
- Masahiko Yamamoto
- G11 - INFORMATION STORAGE
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
Magnetic device
- Publication number 20020190713
- Publication date Dec 19, 2002
- Toshihiko Sato
- B82 - NANO-TECHNOLOGY
Information Patent Application
Magneto-resistive element, magnetic head employing it, magnetic rec...
- Publication number 20020089797
- Publication date Jul 11, 2002
- Hitachi, Ltd.
- Ryoichi Nakatani
- B82 - NANO-TECHNOLOGY
Information Patent Application
Magneto-resistive element, magnetic head employing it, magnetic rec...
- Publication number 20020080534
- Publication date Jun 27, 2002
- Hitachi, Ltd.
- Ryoichi Nakatani
- B82 - NANO-TECHNOLOGY
Information Patent Application
Tunneling magnetoresistive element, and magnetic sensor using the same
- Publication number 20020043974
- Publication date Apr 18, 2002
- Hitachi, Ltd
- Toshihiko Sato
- B82 - NANO-TECHNOLOGY
Information Patent Application
Magneto-resistive element, magnetic head employing it, magnetic rec...
- Publication number 20020027752
- Publication date Mar 7, 2002
- Hitachi, Ltd.
- Ryoichi Nakatani
- B82 - NANO-TECHNOLOGY
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
Information Patent Application
Magnetic head and magnetic storage apparatus using the same
- Publication number 20010006443
- Publication date Jul 5, 2001
- Yoji Maruyama
- B82 - NANO-TECHNOLOGY

Ryoichi Nakatani

Person

Patents Grantslast 30 patents

Magnetic field value measuring device and method for measuring magn...

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

Method for manufacturing magnetic head device

Magnetic memory array, method for recording in a magnetic memory ar...

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

Magnetic memory element with vortex magnetization to control magnet...

Magnetic memory, magnetic memory array, method for fabricating a ma...

Magnetic head with tunneling multi-layer magnetoresistive element b...

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

Magnetic recording apparatus with tunneling magnetoresistive elemen...

Magnetic device

Magnetic head with tunneling magnetoresistive element biased by cur...

Magnetic disk apparatus including magnetic head having multilayered...

Magnetic head and magnetic storage apparatus using the same

Tunneling magnetoresistive element using a bias magnetic field

Magnetic head with dual spin valve element for differential operation

Magnetic head

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

Tunneling magnetoresistive element and magnetic sensor using the same

Tunneling magnetoresistance element, and magnetic sensor, magnetic...

Magnetoresistance effect multilayer film with ferromagnetic film su...

Multilayer which shows magnetoresistive effect and magnetoresistive...

Heat resistant, high saturation magnetic flux density film

Multilayer magnetoresistance effect-type magnetic head

Multilayer magnetoresistance effect-type magnetic head

Magnetic film having a magnetic phase with crystallites of 200 A or...

Antiferromagnetic film superior in corrosion resistance, magnetores...

Magnetic head having main and auxiliary magnetic paths

Magnetic multilayered film and magnetic head using the same

Ferromagnetic film and magnetic head using the same

Patents Applicationslast 30 patents

MAGNETIC FIELD VALUE MEASURING DEVICE AND METHOD FOR MEASURING MAGN...

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

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

Magnetic memory array, method for recording in a magnetic memory ar...

Magnetic memory, magnetic memory array, method for fabricating a ma...

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

Magnetic memory, magnetic memory array, method for recording in a m...

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

Magnetic device

Magneto-resistive element, magnetic head employing it, magnetic rec...

Magneto-resistive element, magnetic head employing it, magnetic rec...

Tunneling magnetoresistive element, and magnetic sensor using the same

Magneto-resistive element, magnetic head employing it, magnetic rec...

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

Magnetic head and magnetic storage apparatus using the same