LexDanaLexDanabeta
Inventor

Kazuhiko Takaishi

Inventor
Kawasaki, JP

Overview

68→
Patents
1992–2018
Patent span
Physics
Primary field (CPC G)

Patents· 68 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 transducer89%
G05BControl or regulating systems in general3%
G06FElectric digital data processing3%
B41JTypewriters1%
F16LPipes1%
G05DSystems for controlling or regulating non-electric variables1%
Y02DClimate change mitigation technologies in information and communication technologies [ict], i.e. information and communication technologies aiming at the reduction of their own energy use1%
PatentTitleYear
10,115,422Hard disk drive, manufacturing method of the same, and servo data writing method20189,905,257'Hard disk drive, manufacturing method of the same, and servo data writing method'20189,837,114Disk device and method for manufacturing disk device20179,466,328'Contact-detecting method, manufacturing method of disk drive, and disk drive'20168,817,416'Magnetic disk device and method of controlling magnetic heads'20148,773,808'Magnetic disk device and head-position control method'20148,625,230'Position demodulator and position demodulation method'20148,553,345'Position demodulation apparatus and position demodulation method'20138,520,334'Disk storage device, controller of the same, controlling method performed by the same, and electronic device'20138,514,512'Disk storage device, controller of the same, controlling method performed by the same, and electronic device'20138,068,307'Position control apparatus and disk apparatus using the same'20118,049,987'Position control apparatus and disk apparatus using the same'20118,023,222'Information storage device and computer product'20118,009,382'Position control apparatus and disk apparatus using the same'20117,953,502'Position control method, position control device, and medium storage device having disturbance suppression function'20117,948,698'Pattern transfer apparatus and pattern transfer method'20117,869,156'Method of creating correction table for head position control, head position control method, and disk device'20117,826,168'Method of creating correction table for head position control, head position control method, and disk device'20107,787,200'Disk-device correcting system, information managing device, master-disk producing device, and master-disk producing method'20107,724,467'Storage device, control circuit for storage device, and servo-write-mode identifying method'20107,684,142'Disk device, positioning control circuit and information processing apparatus using same'20107,609,474'Seek control method, seek control device and disk device'20097,605,998'Settling judgment method for positioning control device, positioning control device and disk apparatus'20097,570,452'Two degree of freedom position control method, two degree of freedom position control device, and medium storage device'20097,564,643'Head position control device and medium storage device'20097,551,391'System and method for controlling head velocity by demodulating servo information'20097,535,192'Head positioning control method, head positioning control device and disk apparatus'20097,515,375'Positioning control device and disk device'20097,508,620'Disk apparatus, information processing system, and information providing apparatus'20097,504,795'Head position control method, head position control device, and disk device'20097,466,101'Head position control method, head position control device, and disk device'20087,463,439'Control device, storage device, storage medium, servo data demodulation method, repeatable velocity error measuring device, and computer product'20087,460,331'Seek control method, seek control device and medium storage device'20087,460,330'Settling judgment method for positioning control device and positioning control device'20087,433,147'Position control device, disk device, and position control method'20087,423,836'Settling judgment method for position control device and position control device'20087,397,628'Two degree of freedom position control method, two degree of freedom position control device, and medium storage device'20087,394,613'Control device, disk device, and seek orbit generation method'20087,372,658'Correction table creation method for head position control, head position control method and disk device'20087,372,659'Head position control method, head position control device and disk device'20087,352,526'Offset measurement method for magnetic recording head and magnetic recording/reproducing device'20087,265,934'Head position control method, head position control device, and disk device'20077,193,808'Correction table creation method for head position control, head position control method and disk device'20077,136,256'Head positioning control method for a storage device and head positioning control device'20067,075,747'Head position control method and disk device'20067,027,254'Head positioning control method, device for disk device and disk device'20066,995,944'Head positioning control method for a storage device and head positioning control device'20066,989,956'Head position control method, disk device, and servo track write method'20066,956,712'Head position demodulating method and disk apparatus'20056,950,258'Head positioning control method and device for storage disk apparatus'20056,943,970'Position demodulating method and circuit of disk apparatus'20056,865,051'Head position control method and disk storage device'20056,819,519'Head position control method for a disk device and the disk device'20046,728,061'Head position control method, control device for disk device and disk device'20046,646,824'Head-positioning control method and device for a disk device'20036,421,200'Control method and control device for a disk storage device'20026,166,871'Method for decoding head position signal including on-the-fly compensation for misread track number'20006,166,875'Method of positionally controlling a recording/reproducing head so as to follow a rotational frequency component of a disk while eliminating a high order frequency component'20006,160,676'Storage disk apparatus and method of controlling same'20006,118,615'Apparatus for positioning head of magnetic storage device'20006,088,187'Control system for two-stage actuator'20006,084,742'Drive control apparatus for a disk drive'20005,995,318'Head positioning control system for disk drives each formed by assembling disks after servo control information is written externally on respective disks and disk drive'19995,907,859'Storage device in which read/write operation is controlled in response to source voltage'19995,859,742'Disk storage apparatus having head overshoot and undershoot control'19995,801,907'Magnetic disk drive with automatic actuator and locking structure'19985,731,973'Developing system and measuring system for filing apparatus'19985,151,639'System for positioning a transducer'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–2009Patents assigned to FUJITSU LTD (47)· patent assignee history
1992Based in Atsugi, JP· patent location history
1998–2011Based in Kawasaki, JP· patent location history
2010–2011Patents assigned to TOSHIBA STORAGE DEVICE CORP (11)· patent assignee history
2011–2014Patents assigned to TAKAISHI KAZUHIKO (6)· patent assignee history
2011–2018Based in Tokyo, JP· patent location history
2013–2018Patents assigned to TOSHIBA KK (10)· patent assignee history
2013–2014Patents assigned to KOSUGI TATSUHIKO (2)· patent assignee history
2016–2018Based in Machida, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FUJITSU LTD471992–2009
TOSHIBA STORAGE DEVICE CORP112010–2011
TOSHIBA KK102013–2018
TAKAISHI KAZUHIKOself62011–2014
KOSUGI TATSUHIKO22013–2014
Locations
LocationPatentsSpan
Kawasaki, JP561998–2011
Tokyo, JP82011–2018
Machida, JP32016–2018
Atsugi, JP11992