Inventor

OBATA SHIGEO

JP18 patents

⚠️ This page may combine multiple inventors who share the name “OBATA SHIGEO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

OBATA SHIGEO

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

Disk drive with head supporting device

Hydrodynamic bearing spindle motor

Spindle motor and disk drive unit

Rotor assembly, information-recording/-reproducing device using the rotor assembly and method of assembling the rotor assembly

Spindle motor

Fluid bearing motor, and disk drive mounted with same

Spindle motor, information recording and reproducing apparatus having a spindle motor, and manufacturing method of spindle motor

Disk drive

Fluid bearing motor, and disk drive mounted with same

Hydrodynamic bearing device, method for manufacturing the same, spindle motor and recording and reproduction apparatus

Thrust dynamic pressure bearing, spindle motor using thereof, and information recording/reproducing device using the spindle motor

Thrust dynamic pressure bearing, spindle motor using the same, and information recording and reproducing apparatus using them

Method of assembling rotor structure

PANASONIC CORP

Hydrodynamic bearing device, and spindle motor equipped with same

Spindle motor and disk drive device using the same

Spindle motor with a magnetic shield plate having an inclined annular face

Disk device

MATSUSHITA ELECTRIC INDUSTIAL

Rotary head drum assembly with upper, lower and inner drums with cylindrical surfaces of differing outward radial position