Takayoshi Ohtsu

Person

Odawara, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Head-slider including thin-film magnetic-recording head having redu...
- Patent number 8,786,986
- Issue date Jul 22, 2014
- HGST Netherlands B.V.
- Shigeo Fujita
- G11 - INFORMATION STORAGE
Information Patent Grant
Device with a floating head having a heater element
- Patent number 8,711,520
- Issue date Apr 29, 2014
- HGST Netherlands B.V.
- Minoru Koike
- G11 - INFORMATION STORAGE
Information Patent Grant
Noise and particle shield for contact sensor in a slider
- Patent number 8,477,455
- Issue date Jul 2, 2013
- HGST Netherlands B.V.
- Masaru Furukawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Galvanomagnetic device and magnetic sensor
- Patent number 8,431,255
- Issue date Apr 30, 2013
- HGST Netherlands B.V.
- Das Sarbanoo
- G11 - INFORMATION STORAGE
Information Patent Grant
CPP magnetoresistive head
- Patent number 8,335,057
- Issue date Dec 18, 2012
- Hitachi Global Storage Technologies Netherlands B.V.
- Masahiro Osugi
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Magnetic head slider
- Patent number 8,284,521
- Issue date Oct 9, 2012
- Hitachi Global Storage Technologies Netherlands B.V.
- Takayoshi Ohtsu
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head slider inhibiting a side erase and method of manufact...
- Patent number 8,270,109
- Issue date Sep 18, 2012
- Hitachi Global Storage Technologies Netherlands B.V.
- Takayoshi Ohtsu
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic-recording-disk test-head and method of manufacturing a mag...
- Patent number 8,221,192
- Issue date Jul 17, 2012
- Hitachi Global Storage Technologies, Netherlands B.V.
- Hidekazu Kashiwase
- G11 - INFORMATION STORAGE
Information Patent Grant
Thin film magnetic head having an angled insulating film
- Patent number 8,184,406
- Issue date May 22, 2012
- Hitachi Global Storage Technologies Netherlands B.V.
- Nubuo Yoshida
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Thin film magnetic head with flying height adjustment capability
- Patent number 7,983,005
- Issue date Jul 19, 2011
- Hitachi Global Storage Technologies Netherlands B.V.
- Takayoshi Ohtsu
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Magnetic head slider with resistive heating film meandering in stac...
- Patent number 7,911,738
- Issue date Mar 22, 2011
- Hitachi Global Storage Technologies Netherlands, B.V.
- Masayuki Kurita
- G11 - INFORMATION STORAGE
Information Patent Grant
Thin film magnetic head
- Patent number 7,738,214
- Issue date Jun 15, 2010
- Hitachi Global Storage Technologies Netherlands B.V.
- Takayoshi Ohtsu
- G11 - INFORMATION STORAGE
Information Patent Grant
Testing and manufacturing method of magnetic heads
- Patent number 7,723,982
- Issue date May 25, 2010
- Hitachi Global Storage Technologies Netherlands B.V.
- Shinji Sasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Suspension for hard disk drive which enables easy dynamic electric...
- Patent number 7,719,796
- Issue date May 18, 2010
- Hitachi Global Storage Technologies Netherlands B.V.
- Haruhide Takahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head slider with ground and heater terminal arrangement an...
- Patent number 7,684,153
- Issue date Mar 23, 2010
- Hitachi Global Storage Technologies Netherlands B.V.
- Takayoshi Ohtsu
- G11 - INFORMATION STORAGE
Information Patent Grant
Suspension for magnetic head slider characteristic test
- Patent number 7,652,848
- Issue date Jan 26, 2010
- Hitachi Global Storage Technologies Natherlands B.V.
- Shinobu Hagiya
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetoresistive head and read/write separation-type magnetic head
- Patent number 7,623,323
- Issue date Nov 24, 2009
- Hitachi Global Storage Technologies Netherlands B.V.
- Koichi Nishioka
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head evaluation apparatus and method for manufacturing mag...
- Patent number 7,595,952
- Issue date Sep 29, 2009
- Hitachi Global Storage Technologies Netherlands B.V.
- Takayoshi Ohtsu
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head having durability against static electricity with mod...
- Patent number 7,558,188
- Issue date Jul 7, 2009
- Hitachi Global Storage Technologies Netherlands B.V.
- Takayoshi Ohtsu
- G11 - INFORMATION STORAGE
Information Patent Grant
CPP magneto resistive head with decreased variation in asymmetry an...
- Patent number 7,292,416
- Issue date Nov 6, 2007
- Hitachi Global Storage Technologies Japan, Ltd.
- Takayoshi Ohtsu
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head with magnetic domain control structure having anti-fe...
- Patent number 7,230,803
- Issue date Jun 12, 2007
- Hitachi, Ltd.
- Akira Morinaga
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording apparatus and magnetic head
- Patent number 7,221,544
- Issue date May 22, 2007
- Hitachi Global Storage Technologies Japan, Ltd.
- Takayoshi Ohtsu
- G11 - INFORMATION STORAGE
Information Patent Grant
Magneto resistive head and magnetic recording apparatus
- Patent number 7,031,123
- Issue date Apr 18, 2006
- Hitachi Global Storage Technologies Japan, Ltd.
- Takayoshi Ohtsu
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head and a magnetic disk drive
- Patent number 6,999,270
- Issue date Feb 14, 2006
- Hitachi, Ltd.
- Katsuro Watanabe
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head with a lamination stack to control the magnetic domain
- Patent number 6,903,906
- Issue date Jun 7, 2005
- Hitachi, Ltd.
- Akira Morinaga
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head with magnetic domain control structure having antifer...
- Patent number 6,704,177
- Issue date Mar 9, 2004
- Hitachi, Ltd.
- Akira Morinaga
- G11 - INFORMATION STORAGE
Information Patent Grant
Recording and reproducing separation type magnetic head having thin...
- Patent number 6,700,737
- Issue date Mar 2, 2004
- Hitachi Global Storage Technologies Japan, Ltd.
- Jun Ohno
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetoresistive head and magnetic recoding/reproducing apparatus u...
- Patent number 6,697,235
- Issue date Feb 24, 2004
- Hitachi, Ltd.
- Takayoshi Ohtsu
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording apparatus
- Patent number 5,307,214
- Issue date Apr 26, 1994
- Hitachi, Ltd.
- Kanji Kawakami
- G11 - INFORMATION STORAGE
Information Patent Grant
Compound magnetic head having a recording head and a reproducing ma...
- Patent number 5,079,662
- Issue date Jan 7, 1992
- Hitachi, Ltd.
- Kanji Kawakami
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
NOISE AND PARTICLE SHIELD FOR CONTACT SENSOR IN A SLIDER
- Publication number 20120120528
- Publication date May 17, 2012
- Masaru Furukawa
- G11 - INFORMATION STORAGE
Information Patent Application
FLOATING HEAD DEVICE FOR FLOATING A HEAD ON A MAGNETIC DISK AND MET...
- Publication number 20110149429
- Publication date Jun 23, 2011
- Hitachi Global Storage Technologies Netherlands B.V.
- Minoru Koike
- G11 - INFORMATION STORAGE
Information Patent Application
HEAD-SLIDER INCLUDING THIN-FILM MAGNETIC-RECORDING HEAD HAVING REDU...
- Publication number 20110116192
- Publication date May 19, 2011
- Shigeo FUJITA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC-RECORDING-DISK TEST-HEAD AND METHOD OF MANUFACTURING A MAG...
- Publication number 20110069410
- Publication date Mar 24, 2011
- Hidekazu KASHIWASE
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic Head Slider Inhibiting A Side Erase And Method Of Manufact...
- Publication number 20100157483
- Publication date Jun 24, 2010
- Takayoshi Ohtsu
- G11 - INFORMATION STORAGE
Information Patent Application
CPP MAGNETORESISTIVE HEAD
- Publication number 20100046121
- Publication date Feb 25, 2010
- Masahiro Osugi
- G11 - INFORMATION STORAGE
Information Patent Application
Galvanomagnetic device and magnetic sensor
- Publication number 20090176129
- Publication date Jul 9, 2009
- Das Sarbanoo
- G01 - MEASURING TESTING
Information Patent Application
Magnetic head slider
- Publication number 20080212234
- Publication date Sep 4, 2008
- Hitachi Global Storage Technologies Netherlands B.V.
- Takayoshi Ohtsu
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic resistive head and magnetic recording apparatus
- Publication number 20080043376
- Publication date Feb 21, 2008
- Hitachi, Ltd.
- Takayoshi Ohtsu
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic head evaluation apparatus and method for manufacturing mag...
- Publication number 20080019034
- Publication date Jan 24, 2008
- Hitachi Global Storage Technologies Netherlands B.V.
- Takayoshi Ohtsu
- G11 - INFORMATION STORAGE
Information Patent Application
Thin film magnetic head
- Publication number 20080014467
- Publication date Jan 17, 2008
- Hitachi Global Storage Technologies Netherlands B.
- Takayoshi Ohtsu
- G11 - INFORMATION STORAGE
Information Patent Application
Thin film magnetic head
- Publication number 20070258171
- Publication date Nov 8, 2007
- Hitachi Global Storage Technologies Netherlands B.V.
- Takayoshi Ohtsu
- G11 - INFORMATION STORAGE
Information Patent Application
Thin film magnetic head and fabrication process
- Publication number 20070253105
- Publication date Nov 1, 2007
- Hitachi Global Storage Technologies Netherlands, B.V.
- Nubuo Yoshida
- G01 - MEASURING TESTING
Information Patent Application
Magnetic head slider and head gimbals assembly
- Publication number 20070247758
- Publication date Oct 25, 2007
- Hitachi Global Storage Technologies Netherlands B.V.
- Masayuki Kurita
- G11 - INFORMATION STORAGE
Information Patent Application
Testing and manufacturing method of magnetic heads
- Publication number 20070188167
- Publication date Aug 16, 2007
- Hitachi Global Storage Technologies Netherlands B.V.
- Shinji Sasaki
- G11 - INFORMATION STORAGE
Information Patent Application
Suspension for magnetic head slider characteristic test
- Publication number 20070183096
- Publication date Aug 9, 2007
- Hitachi Global Storage Technologies Netherlands, B.V.
- Shinobu Hagiya
- G11 - INFORMATION STORAGE
Information Patent Application
Suspension for hard disk drive which enables easy dynamic electric...
- Publication number 20070002494
- Publication date Jan 4, 2007
- Hitachi Global Storage Technologies Netherlands B.V.
- Haruhide Takahashi
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic head slider with terminal arrangement and magnetic head as...
- Publication number 20060268459
- Publication date Nov 30, 2006
- Hitachi Global Storage Technologies Netherlands B.V.
- Takayoshi Ohtsu
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic resistive head and magnetic recording apparatus
- Publication number 20060152864
- Publication date Jul 13, 2006
- Hitachi Global Storage Technologies Japan, Ltd.
- Takayoshi Ohtsu
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic head with durability against static electricity
- Publication number 20060132985
- Publication date Jun 22, 2006
- Hitachi Global Storage Technologies Netherlands B.V.
- Takayoshi Ohtsu
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic head for high speed data transfer
- Publication number 20060092576
- Publication date May 4, 2006
- Hitachi Global Storage Technologies Netherlands B.V.
- Takayoshi Ohtsu
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetoresistive head and read/write separation-type magnetic head
- Publication number 20060067013
- Publication date Mar 30, 2006
- Hitachi Global Storage Technologies Netherlands B.V.
- Koichi Nishioka
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic head and a magnetic disk drive
- Publication number 20040264034
- Publication date Dec 30, 2004
- Hitachi., Ltd.
- Katsuro Watanabe
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic head with magnetic domain control structure having antifer...
- Publication number 20040223263
- Publication date Nov 11, 2004
- Akira Morinaga
- G11 - INFORMATION STORAGE
Information Patent Application
Magneto resistive head and magnetic recording apparatus
- Publication number 20040052009
- Publication date Mar 18, 2004
- HITACHI GLOBAL STORAGE TECHNOLOGIES
- Takayoshi Ohtsu
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic head
- Publication number 20030189802
- Publication date Oct 9, 2003
- Hitachi, Ltd
- Akira Morinaga
- G01 - MEASURING TESTING
Information Patent Application
Magnetoresistive effect head
- Publication number 20030076635
- Publication date Apr 24, 2003
- Akira Morinaga
- G11 - INFORMATION STORAGE
Information Patent Application
Recording and reproducing separation type magnetic head having thin...
- Publication number 20030026041
- Publication date Feb 6, 2003
- Hitachi, Ltd.
- Jun Ohno
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording apparatus and magnetic head
- Publication number 20030021070
- Publication date Jan 30, 2003
- Hitachi, Ltd
- Takayoshi Ohtsu
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetoresistive head and magnetic recording/reproducing apparatus...
- Publication number 20020160228
- Publication date Oct 31, 2002
- Takayoshi Ohtsu
- B82 - NANO-TECHNOLOGY

Takayoshi Ohtsu

Person

Patents Grantslast 30 patents

Head-slider including thin-film magnetic-recording head having redu...

Device with a floating head having a heater element

Noise and particle shield for contact sensor in a slider

Galvanomagnetic device and magnetic sensor

CPP magnetoresistive head

Magnetic head slider

Magnetic head slider inhibiting a side erase and method of manufact...

Magnetic-recording-disk test-head and method of manufacturing a mag...

Thin film magnetic head having an angled insulating film

Thin film magnetic head with flying height adjustment capability

Magnetic head slider with resistive heating film meandering in stac...

Thin film magnetic head

Testing and manufacturing method of magnetic heads

Suspension for hard disk drive which enables easy dynamic electric...

Magnetic head slider with ground and heater terminal arrangement an...

Suspension for magnetic head slider characteristic test

Magnetoresistive head and read/write separation-type magnetic head

Magnetic head evaluation apparatus and method for manufacturing mag...

Magnetic head having durability against static electricity with mod...

CPP magneto resistive head with decreased variation in asymmetry an...

Magnetic head with magnetic domain control structure having anti-fe...

Magnetic recording apparatus and magnetic head

Magneto resistive head and magnetic recording apparatus

Magnetic head and a magnetic disk drive

Magnetic head with a lamination stack to control the magnetic domain

Magnetic head with magnetic domain control structure having antifer...

Recording and reproducing separation type magnetic head having thin...

Magnetoresistive head and magnetic recoding/reproducing apparatus u...

Magnetic recording apparatus

Compound magnetic head having a recording head and a reproducing ma...

Patents Applicationslast 30 patents

NOISE AND PARTICLE SHIELD FOR CONTACT SENSOR IN A SLIDER

FLOATING HEAD DEVICE FOR FLOATING A HEAD ON A MAGNETIC DISK AND MET...

HEAD-SLIDER INCLUDING THIN-FILM MAGNETIC-RECORDING HEAD HAVING REDU...

MAGNETIC-RECORDING-DISK TEST-HEAD AND METHOD OF MANUFACTURING A MAG...

Magnetic Head Slider Inhibiting A Side Erase And Method Of Manufact...

CPP MAGNETORESISTIVE HEAD

Galvanomagnetic device and magnetic sensor

Magnetic head slider

Magnetic resistive head and magnetic recording apparatus

Magnetic head evaluation apparatus and method for manufacturing mag...

Thin film magnetic head

Thin film magnetic head

Thin film magnetic head and fabrication process

Magnetic head slider and head gimbals assembly

Testing and manufacturing method of magnetic heads

Suspension for magnetic head slider characteristic test

Suspension for hard disk drive which enables easy dynamic electric...

Magnetic head slider with terminal arrangement and magnetic head as...

Magnetic resistive head and magnetic recording apparatus

Magnetic head with durability against static electricity

Magnetic head for high speed data transfer

Magnetoresistive head and read/write separation-type magnetic head

Magnetic head and a magnetic disk drive

Magnetic head with magnetic domain control structure having antifer...

Magneto resistive head and magnetic recording apparatus

Magnetic head

Magnetoresistive effect head

Recording and reproducing separation type magnetic head having thin...

Magnetic recording apparatus and magnetic head

Magnetoresistive head and magnetic recording/reproducing apparatus...