Inventor
Kazuhiro Nagaoka
Inventor
Fujisawa, JP
Overview
Patents· 11 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 transducer36%
H05KPrinted circuits16%
H01RElectrically-conductive connections12%
H02GInstallation of electric cables or lines, or of combined optical and electric cables or lines8%
H10NElectric solid-state devices not otherwise provided for8%
B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material4%
G01RMeasuring electric variables4%
G01SRadio direction-finding4%
H01LSemiconductor devices4%
H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses4%
PatentTitleYear
10,575,424Hermetic sealed electrical connector with high-speed transmission for hard disk drive202010,515,668Low permeability electrical feed-through201910,395,694Low permeability electrical feed-through20199,870,806'Hermetic sealing with high-speed transmission for hard disk drive'20189,841,457'Pseudo flexure for disk drive and method of testing electronic circuit for disk drive'20179,558,790'Hermetic sealing with high-speed transmission for hard disk drive'20179,036,305'Magnetic recording disk drive with write driver to write head transmission line with multiple segments having different numbers of conductive traces'20159,036,306'Grounding for a hard disk drive suspension tail'20158,857,233'Pipe bending processing apparatus'20148,194,356'Head-stack assembly including heat-dissipation and impedance-matching structure and hard-disk drive using the head-stack assembly'20126,747,488'Multiple PLL oscillator and multiple CW radar used therefore'2004Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2004Based in Hachioji, JP· patent location history
2012–2014Patents assigned to NAGAOKA KAZUHIRO (2)· patent assignee history
2012Patents assigned to HITACHI GLOBAL STORAGE TECH NL (1)· patent assignee history
2012Based in Tokyo, JP· patent location history
2014Patents assigned to AMASAKI YOSHIAKI (1)· patent assignee history
2014Based in Koga, JP· patent location history
2015–2018Patents assigned to HGST Netherlands BV (4)· patent assignee history
2015–2020Based in Fujisawa, JP· patent location history
2017–2020Patents assigned to WESTERN DIGITAL TECH INC (5)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| WESTERN DIGITAL TECH INC | 5 | 2017–2020 |
| HGST Netherlands BV | 4 | 2015–2018 |
| NAGAOKA KAZUHIROself | 2 | 2012–2014 |
| AMASAKI YOSHIAKI | 1 | 2014 |
| HITACHI GLOBAL STORAGE TECH NL | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Fujisawa, JP | 8 | 2015–2020 |
| Koga, JP | 1 | 2014 |
| Tokyo, JP | 1 | 2012 |
| Hachioji, JP | 1 | 2004 |