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Inventor

Toyomi Ohsawa

Inventor
Kanagawa, JP

Overview

9→
Patents
2002–2011
Patent span
Physics
Primary field (CPC G)

Patents· 9 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 transducer90%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%
PatentTitleYear
7,969,681'Disk drive and control method thereof'20117,864,474'Disk drive and control method thereof'20117,852,583'Disk drive device, altitude determination method therefore and method for determining characteristic of head element portion'20107,525,752'Media drive and control method for the same'20097,457,067'Method of controlling a recording current, and magnetic disk device'20087,417,209'Recording disk drive with reduced noise thermal flyheight control'20087,385,777'Data storage device with heater, and control method therefor with timing control'20087,369,349'Data storage device with heater, and control method therefor involving different control modes'20086,466,409'Negative pressure slider with temperature-insensitive flying height for disk storage device'2002

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2002Patents assigned to IBM (1)· patent assignee history
2002Based in Kawasak, JP· patent location history
2008–2009Patents assigned to HITACHI GLOBAL STORAGE TECH (5)· patent assignee history
2008–2011Based in Kanagawa, JP· patent location history
2008Based in Kawasaki, JP· patent location history
2010–2011Patents assigned to HITACHI GLOBAL STORAGE TECH NL (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI GLOBAL STORAGE TECH52008–2009
HITACHI GLOBAL STORAGE TECH NL32010–2011
IBM12002
Locations
LocationPatentsSpan
Kanagawa, JP72008–2011
Kawasaki, JP12008
Kawasak, JP12002