P

Inventor

WATANABE TOSHINORI

JP70 patents
⚠️ This page may combine multiple inventors who share the name “WATANABE TOSHINORI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ALPS ELECTRIC CO LTD

32 patents
US6153062ANov 28, 2000

Magnetoresistive sensor and head

ALPS ELECTRIC CO LTD241 citations99
US5869963AFeb 9, 1999

Magnetoresistive sensor and head

ALPS ELECTRIC CO LTD102 citations98
US6687084B2Feb 3, 2004

Perpendicular magnetic recording head having main magnetic pole layer formed on high-flatness surface of yoke layer, and method of manufacturing the head

ALPS ELECTRIC CO LTD51 citations96
US5784225AJul 21, 1998

Manufacturing method for magnetoresistive head having an antiferromagnetic layer of PTMN

ALPS ELECTRIC CO LTD68 citations96
US5768067AJun 16, 1998

Magnetoresistive head using exchange anisotropic magnetic field with an antiferromagnetic layer

ALPS ELECTRIC CO LTD55 citations96
US6738223B2May 18, 2004

Thin film magnetic head having side faces of the Gd defining layer and the lower magnetic pole layer aligned in the track width dimension

ALPS ELECTRIC CO LTD25 citations93
US6352621B1Mar 5, 2002

Method of manufacturing film laminate having exchange anisotropic magnetic field

ALPS ELECTRIC CO LTD16 citations93
US6201465B1Mar 13, 2001

Magnetoresistive sensor and its manufacturing method

ALPS ELECTRIC CO LTD21 citations93
US6128167AOct 3, 2000

Spin-valve magnetoresistive element

ALPS ELECTRIC CO LTD25 citations93
US6122151ASep 19, 2000

Spin-valve magnetoresistive element

ALPS ELECTRIC CO LTD21 citations93
US6018443AJan 25, 2000

Thin film magnetic head having hard films for magnetizing a shield layer in a single domain state

ALPS ELECTRIC CO LTD40 citations93
US5992004ANov 30, 1999

Method for producing a thin film magnetic head

ALPS ELECTRIC CO LTD35 citations93
US5972420AOct 26, 1999

Magnetoresistive sensor manufacturing method

ALPS ELECTRIC CO LTD21 citations93
US5923503AJul 13, 1999

Thin-film magnetic head and production method thereof

ALPS ELECTRIC CO LTD21 citations93
US6697221B2Feb 24, 2004

Perpendicular magnetic recording head with inverted trapezoidal main magnetic pole layer

ALPS ELECTRIC CO LTD51 citations92
US6538845B1Mar 25, 2003

Thin-film magnetic head having a high specific resistance layer

ALPS ELECTRIC CO LTD49 citations92
US6751054B2Jun 15, 2004

Thin-film magnetic head for perpendicular magnetic recording having main magnetic pole layer on flat surface

ALPS ELECTRIC CO LTD19 citations84
US6466403B1Oct 15, 2002

Thin film magnetic head having very narrow track width and manufacturing method for the same

ALPS ELECTRIC CO LTD16 citations84
US5959813ASep 28, 1999

Combination read/write thin film magnetic head using a shielding magnetic layer

ALPS ELECTRIC CO LTD18 citations84
US6346338B1Feb 12, 2002

Combination magnetoresistive/inductive thin film magnetic head and its manufacturing method

ALPS ELECTRIC CO LTD13 citations82
US6112402ASep 5, 2000

Method for manufacturing magnetoresistive sensor

ALPS ELECTRIC CO LTD14 citations82
US7181829B2Feb 27, 2007

Method of manufacturing a perpendicular magnetic recording head

ALPS ELECTRIC CO LTD7 citations74
US6965495B2Nov 15, 2005

Thin film magnetic head and method of manufacturing the same

ALPS ELECTRIC CO LTD8 citations74
US6958886B2Oct 25, 2005

Perpendicular magnetic recording head having main magnetic pole layer formed on high-flatness surface, and method of manufacturing the head

ALPS ELECTRIC CO LTD4 citations74
US6731458B2May 4, 2004

Thin film magnetic head with upper core and lower core layers reducing side-fringing

ALPS ELECTRIC CO LTD11 citations74
US6307722B1Oct 23, 2001

Thin-film magnetic head and production method thereof

ALPS ELECTRIC CO LTD7 citations74
US6198378B1Mar 6, 2001

Magnetoresisitive sensor and manufacturing method therefor

ALPS ELECTRIC CO LTD8 citations74
US6150046ANov 21, 2000

Combination magnetoresistive/inductive thin film magnetic head and its manufacturing method

ALPS ELECTRIC CO LTD9 citations74
US5694275ADec 2, 1997

Magnetoresistive magnetic head

ALPS ELECTRIC CO LTD9 citations74
US5675460AOct 7, 1997

Magnetic head and method of producing the same

ALPS ELECTRIC CO LTD9 citations74
US6768611B2Jul 27, 2004

Thin film magnetic head causing appropriately suppressed side fringing and method of manufacturing the same

ALPS ELECTRIC CO LTD8 citations73
US7167340B2Jan 23, 2007

Thin-film magnetic head appropriately suppressing side fringing and method for fabricating the same

ALPS ELECTRIC CO LTD7 citations70

HITACHI LTD

8 patents

DOW CORNING TORAY SILICONE

3 patents

TDK CORP

2 patents

TRINITY IND CORP

1 patent

ALPS ELECTRONIC CO LTD

1 patent

NHK SPRING CO LTD

1 patent

DOWA MINING CO

1 patent

DOW CORNING

1 patent

Showing the top 50 of 70 patents by PatentIndex Score.