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Inventor

Koichi Nishioka

Inventor
Hiratsuka, JP

Overview

22→
Patents
1996–2014
Patent span
Physics
Primary field (CPC G)

Patents· 22 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer28%
B82YSpecific uses or applications of nanostructures25%
Y10TTechnical subjects covered by former us classification14%
G01RMeasuring electric variables12%
H01FMagnets9%
H10NElectric solid-state devices not otherwise provided for7%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form1%
G11CStatic stores1%
PatentTitleYear
8,879,214'Half metal trilayer TMR reader with negative interlayer coupling'20148,351,163'Tunneling magnetoresistance read head having a cofe interface layer and methods for producing the same'20138,339,752'Magnetic head with wide sensor back edge, low resistance, and high signal to-noise ratio and methods of production thereof'20128,284,526'Tunneling junction magnetoresistive effect element and manufacturing method thereof'20128,254,067'Tunnel junction type magneto-resistive head'20128,064,159'Current perpendicular to plane (CPP) magnetic read head'20117,957,109'Magnetic head of magnetoresistance effect type with high resistance to external stress'20117,848,064'Enhanced anti-parallel-pinned sensor using thin ruthenium spacer and high magnetic field annealing'20107,623,323'Magnetoresistive head and read/write separation-type magnetic head'20097,408,747'Enhanced anti-parallel-pinned sensor using thin ruthenium spacer and high magnetic field annealing'20087,230,803'Magnetic head with magnetic domain control structure having anti-ferromagnetic layer and plural magnetic layers'20077,209,326'Magnetoresistive head and manufacturing method thereof'20077,159,304'Method of manufacturing a spin-valve giant magnetoresistive head'20077,016,170'Magnetic head and tunnel junction magneto-resistive head having plural ferromagnetic layers associated with an antiferromagnetic coupling layer for magnetically biasing the sensing free layer'20066,903,906'Magnetic head with a lamination stack to control the magnetic domain'20056,741,433'Magneto-resistive head and magnetic tunnel junction magneto-resistive head having plural ferromagnetic layers and an anitferromagnetically coupling layer'20046,717,778'Spin-valve giant magnetoresistive head and method of manufacturing the same'20046,697,235'Magnetoresistive head and magnetic recoding/reproducing apparatus using the same'20046,319,622'Magnetic head'20016,120,919'Magnetic head'20005,648,885'Giant magnetoresistive effect sensor, particularly having a multilayered magnetic thin film layer'19975,490,118'Multiple power source memory control circuit for memory devices'1996

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1996Based in Itami, JP· patent location history
1997–2007Patents assigned to HITACHI LTD (7)· patent assignee history
1997Based in Takefu, JP· patent location history
2000–2013Based in Hiratsuka, JP· patent location history
2004–2009Patents assigned to HITACHI GLOBAL STORAGE TECH (6)· patent assignee history
2008–2014Based in Kanagawa, JP· patent location history
2010–2013Patents assigned to HITACHI GLOBAL STORAGE TECH NL (7)· patent assignee history
2011–2014Patents assigned to NISHIOKA KOICHI (6)· patent assignee history
2011–2013Patents assigned to SAKAMOTO KOJI (4)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI GLOBAL STORAGE TECH NL72010–2013
HITACHI LTD71997–2007
HITACHI GLOBAL STORAGE TECH62004–2009
NISHIOKA KOICHIself62011–2014
SAKAMOTO KOJI42011–2013
Locations
LocationPatentsSpan
Hiratsuka, JP132000–2013
Kanagawa, JP72008–2014
Takefu, JP11997
Itami, JP11996