Inventor
Hans Leuthold
Inventor
Santa Cruz, CA, US
Overview
Patents· 74 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 transducer41%
F16CShafts34%
H02KDynamo-electric machines8%
G01BMeasuring length, thickness or similar linear dimensions4%
Y10TTechnical subjects covered by former us classification3%
B23HWorking of metal by the action of a high concentration of electric current on a workpiece using an electrode which takes the place of a tool2%
C10MLubricating compositions1%
C10NIndexing scheme associated with subclass c10m relating to lubricating compositions1%
G01DMeasuring not specially adapted for a specific variable1%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests1%
PatentTitleYear
10,585,465Environmental state profiling for electronics devices arranged in a multi-dimensional array20209,995,596Spindle force actuator20189,865,298'Conical pumping seal'20189,790,990'Bearing gap determined depth and width'20179,638,508'Offset reduction for displacement sensor'20179,524,745'Drive motor with limiter with increased stiffness'20169,482,276'Method of filling lubricating fluid in hard disk drives'20169,482,510'Noise measurement for measured displacement'20169,418,697'Radial channel with fluid reservoir'20169,310,179'Spindle force actuator'20169,200,671'Fluid dynamic bearing reservoir'20159,196,294'Apparatus with repulsive force between stationary and rotatable components'20159,181,978'Grooved thrust bearing'20159,163,925'Electric field measurement apparatus'20159,099,903'Stator assembly support'20159,036,293'Disk clamp and lock'20158,934,195'Fluid dynamic bearing with non-linear damping'20158,913,344'Dynamically adjustable fluid dynamic bearing stiffness'20148,891,202'Notched disk clamp'20148,885,295'Undulating disk clamp'20148,699,182'Fluid dynamic motor with reduced vibrations'20148,339,731'Fluid dynamic bearing with non-linear damping'20127,965,589'Recordable disc and motor'20117,957,091'Recordable disc with fluid bearing features'20117,885,786'Sleeve cone quality measurement system and method'20117,826,171'Interconnect architecture for disc drive array'20107,284,909'Hybrid orbital fluid dynamic bearing motor'20077,284,910'Capillary seal with flow restrictors'20077,193,811'Fluid dynamic bearing with non-linear damping'20077,090,401'Grooving pattern for grooved fluid bearing'20066,817,767'Hybrid spindle bearing'20046,799,892'Hybrid spindle bearing'20046,702,408'Single plate hydrodynamic bearing cartridge'20046,702,465'Exclusion seal for fluid dynamic bearing motors'20046,679,501'Motor with stationary shaft and high speed capillary seal'20046,603,225'Brushless spindle DC motor as an actuator to create radial force'20036,583,952'In-hub spindle motor with separate fluid dynamic bearings'20036,505,968'System for active stiffness, power, and vibration control in bearings'20036,473,271'Aerodynamically streamlined actuator arm for disc drives'20026,373,655'Low cost hydrodynamic spindle'20026,296,390'Single plate hydrodynamic bearing with extended single journal bearing'20016,292,328'Both ends open fluid dynamic bearing having a journal in combination with a conical bearing'20016,280,088'Crowned conical bearing'20016,239,943'Squeeze film damping for a hard disc drive'20016,201,322'Brushless spindle DC motor used as an actuator to create radial force'20016,148,501'Fabrication means for in-hub spindle with separate fluid dynamic bearings'20006,140,790'Active electromagnetic damping system for spindle motors'20006,137,650'Spindle motor with fluid dynamic bearing having a journal bearing in combination with a conical bearing'20006,130,802'Both ends open fluid dynamic bearing having a journal in combination with a conical bearing'20006,118,620'In-hub spindle motor with separate fluid dynamic bearings'20006,069,768'Spindle motor with multiple thrust plate fluid dynamic bearing'20006,069,767'Both ends open fluid dynamic bearing with multiple thrust plates'20006,065,877'Thermal compensation for fluid dynamic bearing using bimetal parts'20006,019,516'Crowned conical bearing'20006,005,748'Spindle motor with multiple thrust plate fluid dynamic bearing'19995,993,066'Fluid retention principle for hydrodynamic bearings'19995,977,674'Single plate hydrodynamic bearing with self-balancing fluid level'19995,969,903'Magnetic particle trap for hydrodynamic bearing'19995,940,246'Disc drive hydro bearing lubricant with electrically conductive, non-metallic additive'19995,930,075'Disc drive spindle motor having hydro bearing with optimized lubricant viscosity'19995,908,247'Sinusoidal grooving pattern for grooved journal bearing'19995,907,456'Disc drive spindle motor having hydro bearing with lubricant optimized with disc drive compatible additives'19995,795,074'Grooved hydrodynamic thrust bearing'19985,793,129'Low distortion interference fits for spindle motor assembly'19985,710,678'Disc drive with self-pressurizing fluid bearing and shaft-supporting-ball retaining element'19985,697,708'Hydrodynamic bearing with reduced temperature sensitivity'19975,685,647'Single plate hydrodynamic bearing with self-balancing fluid level and fluid circulation'19975,666,716'Low distortion interference fits for spindle motor assembly'19975,653,540'Hydrodynamic bearing assembly with single sided grooved counterplace'19975,577,842'Absorbent oil barrier for hydrodynamic bearing'19965,533,812'Single plate hydrodynamic bearing with self-balancing fluid level'19965,524,986'Fluid retention principles for hydrodynamic bearings'19965,487,608'Single plate hydrodynamic bearing with self-balancing fluid level and fluid circulation'19965,457,589'Hub-disc interface reducing hub reloaded disc surface curvature'1995Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1995–2000Patents assigned to SEAGATE TECHNOLOGY (24)· patent assignee history
1995–2020Based in Santa Cruz, CA, US· patent location history
2000–2020Patents assigned to SEAGATE TECHNOLOGY LLC (47)· patent assignee history
2012–2015Patents assigned to LEUTHOLD HANS (3)· patent assignee history
2012–2015Patents assigned to CEBALLOS SAUL (2)· patent assignee history
2012–2015Patents assigned to IMMISCH SUSAN (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SEAGATE TECHNOLOGY LLC | 47 | 2000–2020 |
| SEAGATE TECHNOLOGY | 24 | 1995–2000 |
| LEUTHOLD HANSself | 3 | 2012–2015 |
| CEBALLOS SAUL | 2 | 2012–2015 |
| IMMISCH SUSAN | 2 | 2012–2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Santa Cruz, California, US | 74 | 1995–2020 |