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Inventor

Takenori Atsumi

Inventor
Ibaraki, JP

Overview

15→
Patents
2004–2015
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 transducer100%
PatentTitleYear
9,093,094'Hard disk drive actuator assembly with interleaved voice coil motor'20158,593,749'Hard-disk drive including fly-height-adjustment heating element and position-adjustment heating element and method of controlling fly height'20138,488,268'Disk device'20138,059,356'Disk drive and method for head servo control of the disk drive'20117,576,943'Magnetic disk drive with positioning control system'20097,545,607'Carriage arm assembly for locating magnetic head, and magnetic disk apparatus using the same'20097,474,494'Magnetic disk device with positioning control'20097,394,609'Magnetic disk drive with positioning accuracy'20087,161,761'Magnetic disk drive with feedback control'20077,110,223'Carriage arm assembly for locating magnetic head, and magnetic disk apparatus using the same'20067,031,118'Carriage arm assembly for locating magnetic head, and magnetic disk apparatus using the same'20066,961,205'Magnetic disk apparatus'20056,927,934'Magnetic disk apparatus'20056,879,467'Carriage arm assembly for locating magnetic head, and magnetic disk apparatus using the same'20056,819,522'Positioning control apparatus'2004

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2004–2013Patents assigned to HITACHI LTD (3)· patent assignee history
2004–2005Based in Ushiku, JP· patent location history
2005–2009Patents assigned to HITACHI GLOBAL STORAGE TECH (9)· patent assignee history
2005–2009Based in Chiyoda-ku, JP· patent location history
2007–2013Based in Ibaraki, JP· patent location history
2011–2013Patents assigned to ATSUMI TAKENORI (3)· patent assignee history
2011Patents assigned to HITACHI GLOBAL STORAGE TECH NL (1)· patent assignee history
2013–2015Patents assigned to HGST Netherlands BV (2)· patent assignee history
2013–2015Based in Yamato, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI GLOBAL STORAGE TECH92005–2009
ATSUMI TAKENORIself32011–2013
HITACHI LTD32004–2013
HGST Netherlands BV22013–2015
HITACHI GLOBAL STORAGE TECH NL12011
Locations
LocationPatentsSpan
Ibaraki, JP62007–2013
Chiyoda-ku, JP42005–2009
Ushiku, JP32004–2005
Yamato, JP22013–2015