Inventor · disambiguated record
Takeji Sumiya
Also filed as: SUMIYA TAKEJI
12 granted patents·1 pending application·37 citations·filing 2005–2023
87Inventor score
Technology areasG11B
Files withWESTERN DIGITAL TECH INC4HITACHI GLOBAL STORAGE TECH3HGST Netherlands BV2MURAKI TAKUMA1NAKAMIYA TERUHIRO1
Top patents by PatentIndex Score
13 records- 0189US8130470B2Suspension assembly including a limiter having a gross length larger than a between-coupling-portions distance between coupling portionsMURAKI TAKUMA·Filed 2007·Granted Mar 6, 2012·15 cites·19 claims
- 0286US11410692B1Carriage assembly with asymmetrical swage bosses and associated methodsWESTERN DIGITAL TECH INC·Filed 2021·Granted Aug 9, 2022·2 cites·21 claims
- 0379US9747956B1Base for protecting external welds of hermetically sealed electronic devicesHGST Netherlands BV·Filed 2016·Granted Aug 29, 2017·6 cites·20 claims
- 0478US7483239B2Magnetic disk drive with adjustment of rotational balanceHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Jan 27, 2009·4 cites·18 claims
- 0576US7545599B2Disk drive with vibration suppression member disposed near head assemblyHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Jun 9, 2009·3 cites·16 claims
- 0673US8125739B2Disk drive device and magnetic disk driveSUZUKI TAKAO·Filed 2009·Granted Feb 28, 2012·2 cites·17 claims
- 0767US8169747B2Cushioning ramp having a stepped structure for a magnetic disc apparatusSEKI SHOTA·Filed 2009·Granted May 1, 2012·3 cites·2 claims
- 0867US7486484B2Arm chamfer for comb type actuator in rotating disk storage device and carriage assemblyHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Feb 3, 2009·1 cites·17 claims
- 0965US11646055B1Carriage assembly with asymmetrical swage bosses and associated methodsWESTERN DIGITAL TECH INC·Filed 2022·Granted May 9, 2023·0 cites·22 claims
- 1064US8730620B1Flexible ramp in a hard disk driveHGST Netherlands BV·Filed 2012·Granted May 20, 2014·1 cites·20 claims
- 1146US12125507B2Hard disk drive breather filter enabling sorbent replacementWESTERN DIGITAL TECH INC·Filed 2023·Granted Oct 22, 2024·0 cites·17 claims
- 1245US2024194222A1Pivot-to-enclosure fastening for reducing torsional vibration of actuator coil in hard disk driveWESTERN DIGITAL TECH INC·Filed 2023·Application pending·0 cites
- 1337US8537500B2Magnetic disk deviceNAKAMIYA TERUHIRO·Filed 2010·Granted Sep 17, 2013·0 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →