Inventor
Norbert Steven Parsoneault
Inventor
Scotts Valley, CA, US
Overview
Patents· 52 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F16Cprimary
F16CShafts37%
G11BInformation storage based on relative movement between record carrier and transducer30%
H02KDynamo-electric machines19%
Y10TTechnical subjects covered by former us classification9%
B23CMilling2%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests2%
B23PMetal-working not otherwise provided for1%
F16JPistons1%
F16NLubricating1%
PatentTitleYear
9,850,941Adjustable gap for a fluid dynamic bearing20179,470,261'Adjustable gap for a fluid dynamic bearing'20169,115,758'Shield restricting axial movement'20159,016,947'Grooved limiter'20158,913,344'Dynamically adjustable fluid dynamic bearing stiffness'20148,472,132'Fluid dynamic bearing apparatus arranged to discharge air bubbles generated therein and a spindle motor and a disk drive apparatus including the same'20138,454,238'Spindle regions'20138,308,365'Air purging for a fluid dynamic bearing'20128,181,348'Shielding fluid reservoirs of fluid dynamic bearing motors'20127,959,357'Fluid dynamic bearing spindle motor'20117,944,645'Lubricated limiter for fluid dynamic bearing motor'20117,893,585'Motor assembly with multifunctional components'20117,823,290'Method of forming a hub for use in a disk drive motor'20107,758,246'Air purging for a fluid dynamic bearing'20107,726,882'Dual seal for optimized performance'20107,679,243'Motor assembly with multifunctional components'20107,626,783'Lubricated limiter for fluid dynamic bearing motor'20097,423,839'Low power support pads for moment loading and associated methods'20087,390,125'Single piece hub with integral upper and lower female cones'20087,372,663'Lubricated limiter for fluid dynamic bearing motor'20087,281,852'Spool bearing with asymmetric sealing'20077,241,051'Radial capillary seal for fluid dynamic bearing motors'20077,234,868'Radial pumping oil seal for fluid dynamic bearing motor'20077,133,250'Inboard thrust surface fluid recirculation pump'20067,056,026'Capillary seal with fill pool'20066,975,484'Selectively stiff FDB bearing for better servo write'20056,921,996'Constant pressure magnetically preloaded FDB motor'20056,900,568'Fluid dynamic bearing motor configured with an integrated counterplate to contain bearing fluid'20056,857,189'Method and apparatus for assembling a hydrodynamic bearing'20056,771,461'Spindle hub having a back iron mountingly coupled to only a hub separating member'20046,731,456'Fluid dynamic bearing thermal compensation'20046,702,408'Single plate hydrodynamic bearing cartridge'20046,669,369'Fluid dynamic bearing secondary capillary seal reservoir'20036,583,952'In-hub spindle motor with separate fluid dynamic bearings'20036,402,383'Design methods for highly efficient high speed fluid dynamic bearing motors'20026,296,390'Single plate hydrodynamic bearing with extended single journal bearing'20016,285,527'Disc drive having hydrodynamic labyrinth seal and magnet shield'20016,148,501'Fabrication means for in-hub spindle with separate fluid dynamic bearings'20006,118,620'In-hub spindle motor with separate fluid dynamic bearings'20006,065,877'Thermal compensation for fluid dynamic bearing using bimetal parts'20006,055,126'Disc drive having hydrodynamic labyrinth seal and magnet shield'20006,019,516'Crowned conical bearing'20005,969,903'Magnetic particle trap for hydrodynamic bearing'19995,956,204'Magnetic disc drive having magnetic particle trap for hydrodynamic bearing'19995,940,246'Disc drive hydro bearing lubricant with electrically conductive, non-metallic additive'19995,793,129'Low distortion interference fits for spindle motor assembly'19985,678,929'Grooved hydrodynamic bearing arrangement including a porous lubricant reservoir'19975,666,716'Low distortion interference fits for spindle motor assembly'19975,653,540'Hydrodynamic bearing assembly with single sided grooved counterplace'19975,601,125'Vacuum fill technique for hydrodynamic bearing'19975,577,842'Absorbent oil barrier for hydrodynamic bearing'19965,529,404'Adhesiveless assembly with laser welding'1996Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1996–2010Patents assigned to SEAGATE TECHNOLOGY (14)· patent assignee history
1996–2004Based in Watsonville, CA, US· patent location history
1999–2017Based in Scotts Valley, CA, US· patent location history
2000–2017Patents assigned to SEAGATE TECHNOLOGY LLC (36)· patent assignee history
2008Based in Scott Valley, CA, US· patent location history
2012–2016Patents assigned to NOTTINGHAM ROBERT A (3)· patent assignee history
2012–2015Patents assigned to PARSONEAULT NORBERT S (3)· patent assignee history
2013–2016Patents assigned to HERNDON TROY MICHAEL (3)· patent assignee history
2013–2015Based in Boulder, CO, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SEAGATE TECHNOLOGY LLC | 36 | 2000–2017 |
| SEAGATE TECHNOLOGY | 14 | 1996–2010 |
| HERNDON TROY MICHAEL | 3 | 2013–2016 |
| NOTTINGHAM ROBERT A | 3 | 2012–2016 |
| PARSONEAULT NORBERT Sself | 3 | 2012–2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Scotts Valley, California, US | 38 | 1999–2017 |
| Watsonville, California, US | 10 | 1996–2004 |
| Boulder, CO, US | 3 | 2013–2015 |
| Scott Valley, California, US | 1 | 2008 |