Abstract: A battery includes a positive electrode having a first strip shape and a positive electrode lead, and a negative electrode having a second strip shape and a negative electrode lead. First ends of the positive electrode and the negative electrode in a longitudinal direction are on an inner peripheral side, and second ends of the positive electrode and the negative electrode in the longitudinal direction are on an outer peripheral side. The positive electrode lead and the negative electrode lead are extended out from a first end side in a width direction of the positive electrode and the negative electrode, and a first thickness of the positive electrode on the first end side is thinner than a second thickness of the positive electrode on a second end side in the width direction.

Abstract: An endoscope system includes an image forming section configured to arrange first and second images obtained by picking up images of first and second regions of a subject to be adjacent to each other to form an image of one frame, a light source section configured to emit illumination light based on a brightness evaluation of the image to the first and second regions, a brightness-range calculating section configured to detect minimum and maximum luminance values in the first and second images, and an image processing section configured to perform a luminance shift such that a minimum or maximum luminance value of an image, a luminance range of which is smaller than a predetermined luminance range, among the first and second images coincides with a predetermined luminance lower limit or upper limit value.

Abstract: Provided is a loudspeaker device that can improve sound quality. The loudspeaker device includes: a loudspeaker housing; a first loudspeaker unit provided in a first wall of the loudspeaker housing; and an acoustic tube communicating an inside and an outside of the loudspeaker housing to each other. The acoustic tube has a predetermined length, and is accommodated in the loudspeaker housing and is helically shaped.

Abstract: A speaker device includes: a loudspeaker including a diaphragm and a field portion disposed rearwardly of the diaphragm; and a cabinet accommodating the field portion. The loudspeaker also includes a mounting member with which the loudspeaker is mounted to the cabinet, and a mounting plane of the mounting member includes a center of gravity of the loudspeaker.

Abstract: A speaker device includes: a loudspeaker including a diaphragm and a field portion disposed rearwardly of the diaphragm; and a cabinet accommodating the field portion. The loudspeaker also includes a mounting member with which the loudspeaker is mounted to the cabinet, and a mounting plane of the mounting member includes a center of gravity of the loudspeaker.

Abstract: A secondary battery includes a cathode terminal; an anode terminal; a wound electrode body; and a step reducing member. The step reducing member is attached to one or both of a first cathode wound portion and a first anode wound portion in one or more of a first region, a second region and a third region. The first region is in a major axis direction outside the cathode terminal in a wound direction of a cathode, and the second region is in the major axis direction outside the anode terminal in the wound direction of an anode and the third region between the cathode terminal and the anode terminal.

Abstract: A loudspeaker device includes: a plurality of loudspeaker units; and a plurality of horns provided in the plurality of loudspeaker units, respectively, the plurality of horns each restricting spread of sound output from a corresponding one of the loudspeaker units to a predetermined range.

Abstract: A loudspeaker device includes: a loudspeaker housing; a first loudspeaker unit provided in a first wall of the loudspeaker housing; and an acoustic tube communicating an inside and an outside of the loudspeaker housing to each other. The acoustic tube has a predetermined length, and is accommodated in the loudspeaker housing while spirally bent.

Abstract: A charging method includes: in a case of charging a lithium ion secondary battery having a positive electrode, a negative electrode, and an electrolyte housed in an exterior body, calculating a value obtained by second-order differentiation of a charging current in constant-voltage charging with respect to a charging electric quantity or time during charging; and, during charging with an environmental temperature of T1 immediately before start of charging, in a case where a change in a sign of the value calculated by second-order differentiation from positive to negative or from negative to positive is observed, if an ambient temperature immediately before start of next and subsequent charging is T2 or lower, making the whole or a part of a current in a constant-current charging current section lower than an initial setting.

Abstract: An endoscope system includes: an image configuring portion configured to configure a first image and a second image based on image pickup signals corresponding to different areas in a same subject; a luminance detecting portion configured to detect luminances of the first and second images; and a luminance control portion adjusting, for areas obtained by dividing each of the first and second images as units, the luminance of at least one of the images so that a luminance difference between two areas where the first image and the second image adjoin each other becomes equal to or smaller than a threshold.

Abstract: A loudspeaker includes a frame, a diaphragm, an edge connecting portion, a magnetic circuit having a magnetic gap, and a voice coil body. The edge connecting portion connects an outer peripheral end portion of the diaphragm and the frame to each other. The diaphragm is disposed inside of the frame. The diaphragm has a planer diaphragm and a reinforcing diaphragm. Both a front surface and a rear surface of the planer diaphragm are flat. The reinforcing diaphragm includes a thick portion and a recessed portion, and is joined to the planer diaphragm. The reinforcing diaphragm is made of resin. The thick portion is formed on an outer periphery of the reinforcing diaphragm. The recessed portion is formed at a center side of the reinforcing diaphragm.

Abstract: A loudspeaker includes a frame, a diaphragm, an edge, a magnetic circuit, and a voice coil body. The magnetic circuit includes a magnet and a bottom plate. The bottom plate includes an installation part and a plurality of arms. The installation part is located on the first side of the magnet and is magnetically connected to the magnet. The arms project from the installation part toward the outer periphery and are connected to the frame.

Abstract: An endoscope system has an insertion portion, a forward observation window configured to acquire a forward-field-of-view image, a lateral observation window configured to acquire a lateral-field-of-view image, an image pickup device and a video processor. A positional displacement correcting portion of the video processor detects a positional relationship between a portion where the forward-field-of-view image is formed and a portion where the lateral-field-of-view image is formed, on the image pickup device, and generates displacement amount data. A boundary correcting portion generates an image signal in which the forward-field-of-view image and the lateral-field-of-view image are arranged with an image center point provided in the portion and an image center point provided in the portion caused to correspond to each other, based on the displacement amount data.

Abstract: A method is provided for causing a processor included in a speaker system to execute operations. The operations include acquiring, using a measurement microphone, reflected sound information regarding an effect of sounds that are played back by a plurality of speakers having predetermined directivity and that are reflected off an object, where the plurality of speakers are included in the speaker system. The operations also include calculating correction coefficients used to correct acoustic characteristics of the plurality of speakers on the basis of the acquired reflected sound information. The operations further include correcting the acoustic characteristics of the plurality of speakers using the calculated correction coefficients.

Abstract: A loudspeaker includes a frame, a diaphragm, an edge connecting portion, a magnetic circuit having a magnetic gap, and a voice coil body. The edge connecting portion connects an outer peripheral end portion of the diaphragm and the frame to each other. The diaphragm is disposed inside of the frame. The diaphragm has a planer diaphragm and a reinforcing diaphragm. Both a front surface and a rear surface of the planer diaphragm are flat. The reinforcing diaphragm includes a thick portion and a recessed portion, and is joined to the planer diaphragm. The reinforcing diaphragm is made of resin. The thick portion is formed on an outer periphery of the reinforcing diaphragm. The recessed portion is formed at a center side of the reinforcing diaphragm.

Abstract: A speaker device for reproducing an audio signal includes a first speaker including a first diaphragm and a first magnetic circuit that drives the first diaphragm, where the first diaphragm reproduces an audio signal including a predetermined frequency range, a second speaker including a second diaphragm and a second magnetic circuit that drives the second diaphragm, where the second diaphragm reproduces an audio signal including a frequency range substantially the same as the predetermined frequency range, and at least one cabinet having the first speaker and the second speaker mounted therein so that radiation directions of sounds are opposite to each other. At least part of a space formed between the first speaker and the second speaker communicates with the outside of the cabinet. When the speaker device reproduces the audio signal, the first diaphragm and the second diaphragm vibrate in opposite directions.

Abstract: An endoscope includes: a first image acquisition portion configured to acquire a first object image from a first direction; a second image acquisition portion configured to acquire a second object image from a second direction different from the first direction; first illumination light emission portions provided on a straight line with the first image acquisition portion, the first image acquisition portion being interposed between the first illumination light emission portions, and arranged along a line orthogonal to an optical axis of the first image acquisition portion; and second illumination light emission portions lined up and arranged on a plane where the second image acquisition portion is arranged at the insertion portion, and a lining direction of the first illumination light emission portions and a lining direction of the second illumination light emission portions are arranged at positions to be a twisted relation.

Abstract: A loudspeaker includes a frame, a diaphragm, a voice coil body, a terminal, and a relay wire. The diaphragm includes a thin part and a thick part formed around the thin part. The voice coil body includes a bobbin and a voice coil, and is placed in the center of the diaphragm. The terminal is fixed to the frame. The relay wire is connected to the terminal and the voice coil. At least part of the relay wire is located in the thick part.

Abstract: An endoscope includes: an insertion portion; a first observation portion configured to observe a first area including a front of the insertion portion; a second observation portion configured to observe a second area including a side of the insertion portion and be adjacent to the first area; a first illumination portion configured to irradiate the second area with first illumination light; and a second illumination portion configured to irradiate the second area with second illumination light, and the second illumination portion performs irradiation with the second illumination light of a light quantity equal to a light quantity for which the first illumination light in a range observed in the second observation portion and illumination light from an illumination portion configured to irradiate the first area with the illumination light are put together.

Abstract: An endoscope system includes: an insertion portion inserted into a subject; a first image acquisition section provided on the insertion portion and configured to acquire a first image from a first region of an object; a second image acquisition section provided on the insertion portion and configured to acquire a second image from a second region of the object including a region adjacent to the first region; and an image processing section configured to execute image processing by setting a first display region and a second display region adjacent to the first display region in a display section configured to display an image, disposing the first image in a first display region, disposing part of the second image in the first display region adjacent to the first image, and disposing remaining part of the second image in a second display region.