Takeshi Nakao

Person

Sgamihara, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Laser source module and scanning image display device equipped with...
- Patent number 9,210,388
- Issue date Dec 8, 2015
- Hitachi-LG Data Storage, Inc.
- Atsushi Kazama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Laser light source module
- Patent number 9,036,233
- Issue date May 19, 2015
- Hitachi-LG Data Storage, Inc.
- Wataru Sato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Scan type image display device
- Patent number 8,693,075
- Issue date Apr 8, 2014
- Hitachi Media Electronics Co., Ltd.
- Takeshi Nakao
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
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
Optical head and apparatus for recording and reproducing optical in...
- Patent number 6,272,097
- Issue date Aug 7, 2001
- Hitachi, Ltd.
- Takeshi Nakao
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup for optical disk apparatus
- Patent number 6,125,087
- Issue date Sep 26, 2000
- Hitachi, Ltd.
- Kunikazu Ohnishi
- G11 - INFORMATION STORAGE
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
Tracking method for optical disk apparatus using diffraction light
- Patent number 5,930,220
- Issue date Jul 27, 1999
- Hitachi, Ltd.
- Takeshi Shimano
- 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
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
Optical information processing apparatus and method of controlling...
- Patent number 5,490,133
- Issue date Feb 6, 1996
- Hitachi, Ltd.
- Shigeru Nakamura
- G11 - INFORMATION STORAGE
Information Patent Grant
Recording/reproducing optical head producing focusing error signal...
- Patent number 5,404,344
- Issue date Apr 4, 1995
- Hitachi, Ltd.
- Nobuo Imada
- 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
Data recording/reproducing method and apparatus using a recording m...
- Patent number 5,377,178
- Issue date Dec 27, 1994
- Hitachi, Ltd.
- Atsushi Saito
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical head and information recording apparatus
- Patent number 5,361,244
- Issue date Nov 1, 1994
- Hitachi, Ltd.
- Shigeru Nakamura
- G11 - INFORMATION STORAGE
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
Non-linear optical saturable absorber layer in an optical disk to d...
- Patent number 5,315,573
- Issue date May 24, 1994
- Hitachi, Ltd.
- Takeshi Nakao
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical recording and reproducing method, magneto-optical m...
- Patent number 5,270,987
- Issue date Dec 14, 1993
- Hitachi, Ltd.
- Toshimitsu Kaku
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical recording apparatus having a magnetic slider with i...
- Patent number 5,253,232
- Issue date Oct 12, 1993
- Hitachi, Ltd.
- Kyo Akagi
- 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
High-density magnetic recording and optical reproducing apparatus
- Patent number 5,093,822
- Issue date Mar 3, 1992
- Hitachi, Ltd.
- Fumio Kugiya
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetooptical recording method and apparatus utilizing shift adjus...
- Patent number 5,060,208
- Issue date Oct 22, 1991
- Hitachi, Ltd.
- Nobuyuki Nagai
- G11 - INFORMATION STORAGE
Information Patent Grant
Overwritable magneto-optic recording and reproducing apparatus
- Patent number 5,043,960
- Issue date Aug 27, 1991
- Hitachi, Ltd.
- Takeshi Nakao
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto-optical memory apparatus having a floating magnetic head
- Patent number 5,020,041
- Issue date May 28, 1991
- Hitachi, Ltd.
- Takeshi Nakao
- G11 - INFORMATION STORAGE
Information Patent Grant
Two-laser collimated beam optical head with monitor
- Patent number 5,016,234
- Issue date May 14, 1991
- Hitachi, Ltd.
- Shigeru Nakamura
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
LASER LIGHT SOURCE MODULE
- Publication number 20130222876
- Publication date Aug 29, 2013
- Hitachi Media Electronics Co., Ltd.
- Wataru SATO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SCANNING PROJECTION APPARATUS AND SCANNING IMAGE DISPLAY
- Publication number 20130076800
- Publication date Mar 28, 2013
- Michio HATAGI
- G02 - OPTICS
Information Patent Application
LASER SOURCE MODULE AND SCANNING IMAGE DISPLAY DEVICE EQUIPPED WITH...
- Publication number 20130070206
- Publication date Mar 21, 2013
- Hitachi Media Electronics Co., Ltd.
- Atsushi KAZAMA
- G02 - OPTICS
Information Patent Application
SCAN-TYPE IMAGE DISPLAY DEVICE AND SCAN-TYPE PROJECTION DEVICE
- Publication number 20130003022
- Publication date Jan 3, 2013
- Teppei Tanaka
- G02 - OPTICS
Information Patent Application
SCAN-TYPE IMAGE DISPLAY DEVICE
- Publication number 20120327373
- Publication date Dec 27, 2012
- Norio HOSAKA
- G02 - OPTICS
Information Patent Application
SCAN TYPE IMAGE DISPLAY DEVICE
- Publication number 20120275002
- Publication date Nov 1, 2012
- Hitachi Media Electronics Co., Ltd.
- Takeshi NAKAO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL PICKUP
- Publication number 20070297313
- Publication date Dec 27, 2007
- Nobuhiro Konuma
- G11 - INFORMATION STORAGE
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
Optical head capable of recording and reproducing information on an...
- Publication number 20060136951
- Publication date Jun 22, 2006
- Takeshi Nakao
- G11 - INFORMATION STORAGE
Information Patent Application
Optical head
- Publication number 20040190427
- Publication date Sep 30, 2004
- Tatsuro Ide
- 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
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

Takeshi Nakao

Person

Patents Grantslast 30 patents

Laser source module and scanning image display device equipped with...

Laser light source module

Scan type image display device

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...

Optical head and apparatus for recording and reproducing optical in...

Optical pickup for optical disk apparatus

Magnetoresistance effect multilayer film with ferromagnetic film su...

Tracking method for optical disk apparatus using diffraction light

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

Multilayer magnetoresistance effect-type magnetic head

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

Optical information processing apparatus and method of controlling...

Recording/reproducing optical head producing focusing error signal...

Multilayer magnetoresistance effect-type magnetic head

Data recording/reproducing method and apparatus using a recording m...

Optical head and information recording apparatus

Magnetic recording data storage system

Non-linear optical saturable absorber layer in an optical disk to d...

Magneto-optical recording and reproducing method, magneto-optical m...

Magneto-optical recording apparatus having a magnetic slider with i...

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

High-density magnetic recording and optical reproducing apparatus

Magnetooptical recording method and apparatus utilizing shift adjus...

Overwritable magneto-optic recording and reproducing apparatus

Magneto-optical memory apparatus having a floating magnetic head

Two-laser collimated beam optical head with monitor

Patents Applicationslast 30 patents

LASER LIGHT SOURCE MODULE

SCANNING PROJECTION APPARATUS AND SCANNING IMAGE DISPLAY

LASER SOURCE MODULE AND SCANNING IMAGE DISPLAY DEVICE EQUIPPED WITH...

SCAN-TYPE IMAGE DISPLAY DEVICE AND SCAN-TYPE PROJECTION DEVICE

SCAN-TYPE IMAGE DISPLAY DEVICE

SCAN TYPE IMAGE DISPLAY DEVICE

OPTICAL PICKUP

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

Optical head capable of recording and reproducing information on an...

Optical head

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

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

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