Panasonic Corporation

Matsushita Electric Industrial Co., Ltd.

Panasonic Healthcare Co., Ltd.

Naoshi Kainoh

Akihito Shirai

Junichi Nakamura

Youichi Nishimoto

Shigeo Obata

Takumi Nishimura

Yosei Yoshikawa

Tomohiro Haga

Tsuyoshi Matsumoto

Kazunori Maekawa

Yoichi Nishimoto

Takanao Tanaka

An automatic drug dispenser comprises: a non-filled tray unit for holding vacant trays, a drug feeding unit for feeding a stored drug to a tray in accordance with a pharmacist's instruction, a printer unit for outputting a printed sheet and feeding the printed sheet to the tray; a filled tray unit for holding the tray containing the drug and the printed sheet; and a tray-carrying unit. The tray is provided with an electronic card, in which patient's data is written, and the printer unit is provided, with an electronic card-writing unit for writing the patient's data to the electronic card.

Automatic drug dispenser

A spindle motor rotatably drives recording discs, and includes a base plate, a stator, a rotor hub, a yoke, a rotor magnet, and a hydrodynamic bearing. The hub includes a disc support cylindrical portion for supporting the recording discs in the radial direction, an annular disc mount portion formed on an outer circumference of the cylindrical portion for mounting the recording discs thereon, and an annular projection formed on the lower portion of the disc mount portion in the axial direction and having an outer circumference to which the yoke is fixed. The disc mount portion is formed with an annular non-contact surface formed on the upper portion in the axial direction, and an annular disc receiving face formed around an outer circumference of the non-contact surface and upward of the non-contact surface in the axial direction for being in contact with the recording disc in the axial direction.

Spindle motor with flange land portion for ensuring flatness of recording disc

An annular groove is provided to the rotary portion and/or the fixed portion in a bearing seal portion, and its cross section has a shape approximated by an arc. The annular groove is such that the relationship between the groove width W in a direction following the surface constituting a bearing seal portion and the groove depth Dg in a direction perpendicular to the surface constituting the bearing seal portion is Dg/W&#x3c;0.4.

Hydrodynamic bearing device, spindle motor, and recording and reproducing apparatus

The object of the present invention is to provide a hydrodynamic bearing, a method for manufacturing the same, and a spindle motor, with which the gap in the axial direction required for the smooth operation of a bearing can be sufficiently ensured. A method for manufacturing a hydrodynamic bearing comprising a shaft, a sleeve attached so as to be capable of relative rotation with respect to the shaft, a first flange unitfixed to or integrated with the shaft, and a second flange unit fixed to the shaft, the method comprising at least inserting the shaft into the sleeve, and inserting the shaft into the second flange unit, pressing the top face of the second flange unit in the axial direction, and fixing the second flange unit to the shaft by welding the shaft and the second flange unit while maintaining the pressing state.

Hydrodynamic bearing and method for manufacturing the same, and spindle motor and method for manufacturing the same

A hydrodynamic bearing devicecomprises a shaft, a second thrust flange, a sleeve, a radial bearing, and a thrust bearing. The second thrust flangeis fixed near one end of the shaft. A third cylindrical protrusionthat protrudes farther in the axial direction than the second thrust flange is fixed to or integrally machined at one end of the sleeve. A notchthat communicates between a radial inner space and a radial outer space separated by the third cylindrical protrusionis provided to the third cylindrical protrusion

Hydrodynamic bearing device, motor, recording disc driving apparatus and assembly jig

A hydrodynamic bearing device which can improve workability of injecting a lube repellant and effectively prevent leakage of a lubricant, a method for manufacturing the same, a spindle motor, and a recording and reproduction apparatus are provided. A hydrodynamic bearing deviceincludes a lube repellantwhich is applied in a circular shape by a predetermined distance in a radial direction from a portion of an upper surface of a second thrust flangewhere it is connected to a shaftand a lube repellantwhich is applied in a circular shape on an outer peripheral surface of the second thrust flangebelow from an upper end in the radial direction by a predetermined distance. The lube repellantis applied near the upper end portion in a gap formed between the outer peripheral surface of the second thrust flangeand an inner peripheral surface of an outer sleeve

Growing community of inventors

Ehime, Japan

Naoshi Kainoh