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Inventor

Gen Oikawa

Inventor
Kanagawa, JP

Overview

15→
Patents
2004–2014
Patent span
Physics
Primary field (CPC G)

Patents· 15 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 transducer52%
Y10TTechnical subjects covered by former us classification38%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form3%
B82YSpecific uses or applications of nanostructures3%
H01FMagnets3%
PatentTitleYear
8,842,388'Perpendicular magnetic recording head and method for manufacturing the same'20148,351,156'Perpendicular magnetic recording head having a main pole and first and second magnetic films peripheral to the main pole and having different depths from an air bearing surface'20138,125,734'Magnetic slider, head gimbal assembly and method for manufacturing the same'20128,064,161'Perpendicular magnetic recording head and method for manufacturing the same'20117,995,311'Magnetic shield, manufacturing method thereof and thin film magnetic head employing the same'20117,842,408'Magnetic film, manufacturing method thereof and thin film magnetic head'20107,679,860'Thin film magnetic head with layer having high saturation magnetic flux density, and magnetic storage apparatus'20107,589,937'Thin film magnetic head with high Fe alloy plating film and manufacturing method thereof'20097,515,380'Magnetic head and method for production therefor'20097,485,378'Magnetic thin film head'20097,274,541'Magnetic thin film head, the fabrication method, and magnetic disk'20077,267,757'Magnetic head utilizing a CoNiFe alloy with 60-80 weight percent Fe and method for production therefor'20077,150,819'Structure and plating method of thin film magnetic head and magnetic storage apparatus'20066,795,272'Thin film magnetic head and magnetic storage apparatus'20046,723,449'Structure and plating method of thin film magnetic head and magnetic storage apparatus'2004

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2004Patents assigned to HITACHI LTD (2)· patent assignee history
2004–2009Based in Odawara, JP· patent location history
2006–2011Patents assigned to HITACHI GLOBAL STORAGE TECH (8)· patent assignee history
2007–2009Based in Fujisawa, JP· patent location history
2009–2014Based in Kanagawa, JP· patent location history
2010–2013Patents assigned to HITACHI GLOBAL STORAGE TECH NL (4)· patent assignee history
2011–2014Patents assigned to OIKAWA GEN (4)· patent assignee history
2011–2013Patents assigned to KUDO KAZUE (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI GLOBAL STORAGE TECH82006–2011
HITACHI GLOBAL STORAGE TECH NL42010–2013
OIKAWA GENself42011–2014
HITACHI LTD22004
KUDO KAZUE22011–2013
Locations
LocationPatentsSpan
Kanagawa, JP82009–2014
Odawara, JP52004–2009
Fujisawa, JP22007–2009