Inventor
Kazushi Tsuwako
Inventor
Machida, JP
Overview
Patents· 10 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 transducer64%
H05KPrinted circuits14%
A41DOuterwear7%
H01FMagnets7%
H02KDynamo-electric machines7%
PatentTitleYear
10,916,269Magnet for motor of magnetic storage device20219,293,161'Iron-oxidized hard disk drive enclosure cover'20169,202,483'Iron-oxidized hard disk drive enclosure cover'20158,885,287'Method and apparatus for prevention of Fe contamination with oxygen mixture in a hard disk drive'20148,125,727'Disk drive and method for adjusting common-mode voltage of an element on a head-slider'20126,822,823'Hard disk drive with electrically conductive sheet for electrostatic discharge protection'20046,618,236'Magnetic head handling glove'20036,259,573'Preamplifier circuit with magnetoresistive sensor ESD protection'20015,754,355'Disk drive apparatus and read error recovery method in a disk drive apparatus'19985,696,643'Disk drive apparatus and read error recovery method in a disk drive apparatus'1997Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1997–2004Patents assigned to IBM (5)· patent assignee history
1997–2016Based in Machida, JP· patent location history
2012Patents assigned to HITACHI GLOBAL STORGAE TECHNOLOGIES NETHERLANDS B V (1)· patent assignee history
2012Patents assigned to MATSUDA YUUSUKE (1)· patent assignee history
2012Patents assigned to MURAI MASASHI (1)· patent assignee history
2012–2021Based in Tokyo, JP· patent location history
2014–2016Patents assigned to HGST Netherlands BV (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| IBM | 5 | 1997–2004 |
| HGST Netherlands BV | 3 | 2014–2016 |
| HITACHI GLOBAL STORGAE TECHNOLOGIES NETHERLANDS B V | 1 | 2012 |
| MATSUDA YUUSUKE | 1 | 2012 |
| MURAI MASASHI | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Machida, JP | 7 | 1997–2016 |
| Tokyo, JP | 3 | 2012–2021 |