Panasonic Intellectual Property Management Co., Ltd.

Sanyo Electric Co., Ltd.

Panasonic Corporation

Koichi Muramatsu

Masami Haino

Kouji Fukushima

Kazuo Momoo

Yuichi Takahashi

Takumi Kuwahara

Yukio Hibino

Satoshi Obase

Masayuki Shodai

Katsuya Kawakita

Fumitake Sakai

A speaker unit incorporated in a housing of an earphone includes: a frame having a cylindrical shape; a diaphragm emitting sound; and a board to which a wiring line of a coil provided to the diaphragm is connected. The frame has a space inside, and the diaphragm and the board are placed inside the frame with the space interposed between the diaphragm and the board.

Speaker unit and earphone

A battery pack includes: a connector holder that is fixed to an exterior case and has two main surfaces that include a first main surface exposed through an opening of the exterior case; a floating connector connected with a center of the connector holder in such a manner that the floating connector floats in such a manner that an orientation or a position of the floating connector is variable upward, downward, leftward, and rightward; a lead wire fixed to an inner surface of the floating connector, the lead wire extending through an inside of the exterior case, and the lead wire connecting floating connector with a circuit board; and a positioning buffer that pushes the floating connector, and positions the floating connector at a predetermined original state when an external force is not applied to the floating connector.

Battery pack and production method for same

A battery pack includes: a connector holder that is fixed to an exterior case and has a second main surface that faces an inside of the exterior case; a floating connector connected with a center of the connector holder in such a manner that the floating connector floats such that an orientation of the floating connector is variable upward, downward, leftward, and rightward; and a lead wire fixed to an inner surface of the floating connector. The lead wire extends through an inside of the exterior case. The Lead wire) connects the floating connector with a circuit board. The connector holder has a guide pipe on a second-main-surface side of connector holder. A shape of an edge of the guide pipe is a circle that has a cut-off portion. The cut-off portion has a radius of curvature that is larger than a radius of curvature of the circle.

The battery module has a structure in which a plurality of batteries are arranged at fixed positions by a battery holder, a lead plate is connected to a projecting electrode of each of the batteries, a potting resin is thermally coupled to the lead plate, the battery holder includes an outer peripheral cover having an electrode window to expose the projecting electrode, the lead plate has a connection recess that is locally formed in a planar part to let a protrusion face protrude toward the projecting electrode through the electrode window, and a sealing label is put into intimate contact with the planar part of the lead plate to close an opening of the connection recess. This structure prevents the potting resin from flowing into an outlet formed in the projecting electrode.

Battery module

A lens barrel of this technique includes a movable lens barrel unit section, and a master flange unit having a lens unit, and is switched between a collapsed state where the movable lens barrel unit section is stored in the master flange unit and an extended state where the movable lens barrel unit section is extended from the master flange unit. The master flange unit has a moving frame supported to be movable in an optical axis direction via a first elastic member extendable in the optical axis direction, and a lens frame supported to be movable in the optical axis direction via a second elastic member extendable in the optical axis direction relative to the moving frame. In the collapsed state, the movable lens barrel unit section presses the lens frame such that the moving frame and the lens frame get closer to the master flange against repulsive forces of the first elastic member and the second elastic member.

Lens barrel

A lens hood which is integrated with a lens cover is provided. The lens hood is attached in front of an imaging lens, and is configured to prevent undesired light incident on the imaging lens. The lens hood includes a lens cover having an upper door and a lower door, and a hood body. The hood body supports the upper door and the lower door so as to rotate the upper door and the lower door in opposite directions to each other about an axis orthogonal to an optical axis of the imaging lens, and has a storage space that stores the upper door and the lower door.

Lens hood and imaging apparatus

An optical pickup device according to the present invention comprises: a first mirror for reflecting a first light beam outputted from a first light source and letting a second light beam outputted from a second light source pass therethrough; a first object lens for converging the first light beam reflected by the first mirror on an information recording surface of a recording medium; a second mirror for reflecting the second light beam passing through the first mirror; a second object lens for converging the second light beam reflected by the second mirror on the information recording surface of the recording medium; and an achromatic lens for correcting an axial chromatic aberration of the second object lens generated by wavelength variation of the second light beam, wherein the achromatic lens is provided in an optical path between the first mirror and the second mirror.

Growing community of inventors

Osaka, Japan

Koichi Muramatsu