Abstract: An imaging lens system and an imaging device capable of capturing a long-distance image in a central direction of an optical axis with high resolution and capturing a neighborhood image at a wide angle. An imaging lens system includes, in order from an object side: a first lens group including at least a first lens, a second lens, and a third lens; an aperture stop (STOP); and a second lens group including two or more lens and having a positive combined power, an image side of the first lens has a concave surface, a combined focal length of the first lens and the second lens is negative, the third lens is a lens having a positive power, an object side of the first lens has an aspherical surface, and an incident-side surface (object side) of the first lens has an inflection point.

Abstract: An imaging lens system and an imaging device capable of capturing a long-distance image in a central direction of an optical axis with high resolution and capturing a neighborhood image at a wide angle. An imaging lens system includes, in order from an object side: a first lens group including at least a first lens, a second lens, and a third lens; an aperture stop (STOP); and a second lens group including two or more lens and having a positive combined power, an image side of the first lens has a concave surface, a combined focal length of the first lens and the second lens is negative, the third lens is a lens having a positive power, an object side of the first lens has an aspherical surface, and an incident-side surface (object side) of the first lens has an inflection point.

Abstract: An imaging lens system and an imaging device capable of capturing a long-distance image in a central direction of an optical axis with high resolution and capturing a neighborhood image at a wide angle. An imaging lens system includes, in order from an object side: a first lens group including at least a first lens, a second lens, and a third lens; an aperture stop (STOP); and a second lens group including two or more lens and having a positive combined power, an image side of the first lens has a concave surface, a combined focal length of the first lens and the second lens is negative, the third lens is a lens having a positive power, an object side of the first lens has an aspherical surface, and an incident-side surface (object side) of the first lens has an inflection point.

Abstract: There are provided an acoustic generator, an acoustic generation device, and an electronic apparatus capable of enhancing sound pressure and sound quality. An acoustic generator includes a piezoelectric element having a surface electrode; a vibration body to which the piezoelectric element is attached; and a wiring member extending in one direction, having a flat shape, wherein one end portion in the one direction of the wiring member is connected to the surface electrode, and the wiring member is provided with a slit formed in a side of the wiring member which extends in the one direction from the one end portion of the wiring member.

Abstract: An imaging lens system includes: in order from an object side, a first lens including a negative meniscus lens having a convex surface facing the object side, a second lens including a positive lens having a convex surface facing the object side, a third lens including a negative lens having a concave surface facing an image side, a fourth lens including a positive lens having a convex surface facing the object side, and a fifth lens including a meniscus lens having a concave surface facing the image side, in which: the imaging lens system further includes an aperture stop arranged on the object side or the image side of the second lens, and the lens surface on the image side of the third lens and the lens surface on the object side of the fourth lens are bonded to each other.

Abstract: There are provided an acoustic generator, an acoustic generation device, and an electronic apparatus capable of enhancing sound pressure and sound quality. An acoustic generator includes a piezoelectric element having a surface electrode; a vibration body to which the piezoelectric element is attached; and a wiring member extending in one direction, having a flat shape, wherein one end portion in the one direction of the wiring member is connected to the surface electrode, and the wiring member is provided with a slit formed in a side of the wiring member which extends in the one direction from the one end portion of the wiring member.

Abstract: A sound generator 30 includes a piezoelectric element 1, a vibrating body 3a, a reflection member 81, a reflection member 82, an opening 21, and an opening 22. The vibrating body 3a vibrates due to vibration of the piezoelectric element 1 and generates a sound. The reflection member 81 is disposed in a first direction from the vibrating body 3a so as to be inclined with respect to the vibrating body 3a. The reflection member 82 is disposed in a second direction, which is opposite to the first direction, from the vibrating body 3a so as to face the reflection member 81 with the vibrating body 3a therebetween and so as to be inclined with respect to the vibrating body 3a. The opening 21 faces in a third direction. The opening 22 faces in a fourth direction, which is different from the third direction.

Abstract: An imaging lens system includes: in order from an object side, a first lens including a negative meniscus lens having a convex surface facing the object side, a second lens including a positive lens having a convex surface facing the object side, a third lens including a negative lens having a concave surface facing an image side, a fourth lens including a positive lens having a convex surface facing the object side, and a fifth lens including a meniscus lens having a convex surface facing the image side, in which: the imaging lens system further includes an aperture stop arranged on the object side or the image side of the second lens, and the lens surface on the image side of the third lens and the lens surface on the object side of the fourth lens are bonded to each other.

Abstract: An acoustic generator according to one embodiment includes a piezoelectric element (exciter), a vibrating portion, and a plurality of dampers. The piezoelectric element receives an input of an electrical signal and is caused to vibrate. The piezoelectric element is mounted on the vibrating portion, and the vibrating portion is caused to vibrate by the vibration of the piezoelectric element. The dampers are integrated with the vibrating portion. The dampers are asymmetrically provided with respect to an axis of symmetry of a shape delineated by the outline of the vibrating portion, in a plan view of the vibrating portion from a side on which the piezoelectric element is mounted.

Abstract: An acoustic generator according to an aspect of an embodiment includes a piezoelectric element (exciter), a vibrating body. The piezoelectric element receives an input of an electrical signal and is caused to vibrate. The piezoelectric element is mounted on the vibrating body, and the vibrating body is caused to vibrate by the vibration of the piezoelectric element. The acoustic generator includes at least one pair of two adjacent portions with different stiffnesses in a plan view, and has at least one damper provided contacting with both of the two adjacent portions.

Abstract: A sound generator 30 includes a piezoelectric element 1, a vibrating body 3a, a reflection member 81, a reflection member 82, an opening 21, and an opening 22. The vibrating body 3a vibrates due to vibration of the piezoelectric element 1 and generates a sound. The reflection member 81 is disposed in a first direction from the vibrating body 3a so as to be inclined with respect to the vibrating body 3a. The reflection member 82 is disposed in a second direction, which is opposite to the first direction, from the vibrating body 3a so as to face the reflection member 81 with the vibrating body 3a therebetween and so as to be inclined with respect to the vibrating body 3a. The opening 21 faces in a third direction. The opening 22 faces in a fourth direction, which is different from the third direction.

Abstract: An acoustic generator according to one embodiment includes a piezoelectric element (exciter), a vibrating portion, and a plurality of dampers. The piezoelectric element receives an input of an electrical signal and is caused to vibrate. The piezoelectric element is mounted on the vibrating portion, and the vibrating portion is caused to vibrate by the vibration of the piezoelectric element. The dampers are integrated with the vibrating portion. The dampers are asymmetrically provided with respect to an axis of symmetry of a shape delineated by the outline of the vibrating portion, in a plan view of the vibrating portion from a side on which the piezoelectric element is mounted.

Abstract: An acoustic generator according to an aspect of an embodiment includes a piezoelectric element (exciter), a vibrating body. The piezoelectric element receives an input of an electrical signal and is caused to vibrate. The piezoelectric element is mounted on the vibrating body, and the vibrating body is caused to vibrate by the vibration of the piezoelectric element. The acoustic generator includes at least one pair of two adjacent portions with different stiffnesses in a plan view, and has at least one damper provided contacting with both of the two adjacent portions.

Abstract: Provided are a branching filter capable of well branching two electrical signals having a wide frequency band, and a wireless communication module and wireless communication device using same. The branching filter is provided with an input terminal (11), a first output terminal (12a), a second output terminal (12b), a first line conductor (14a) which is electromagnetically coupled to a resonator (13a) of an input stage so as to interconnect the input terminal (11) and the first output terminal (12a), a capacitor (15a) which interconnects the first line conductor (14a) and ground, and a second line conductor (14b) which is electromagnetically coupled to a resonator (13b) of an output stage and is connected to the second output terminal (12b), wherein a low pass filter is configured from the first line conductor (14a) and the capacitor (15a), and a band pass filter is configured from the first line conductor (14a), the second line conductor (14b), and a plurality of resonators.

Abstract: A process for producing a semiconductor device, includes: first melting by heating only a superior portion of a bump formed on an electrode on one principle surface of a semiconductor substrate; and second melting the entire bump by also heating an inferior portion of the bump.

Abstract: A process for producing a semiconductor device, includes: first melting by heating only a superior portion of a bump formed on an electrode on one principle surface of a semiconductor substrate; and second melting the entire bump by also heating an inferior portion of the bump.

Abstract: A method for manufacturing semiconductor device which includes forming a first metal film over an electrode pad disposed on a substrate, forming a second metal film on the first metal film, forming a first oxide film on a surface of the first metal film and a second oxide film on a surface of the second metal film by oxidizing the surfaces of the first metal film and the second metal film, removing the first oxide film, and melting the second metal film after removing the first oxide film.

Abstract: A failure detection apparatus for a resolver outputting a sine signal indicative of sin ? and a cosine signal indicative of cos ? according to a rotational angle ? of a rotator, includes an inspection value calculating section configured to calculate an inspection value based on at least one of the sine signal and the cosine signal; a failure detecting section configured to judge whether the resolver is in a failure state or not on the basis of the inspection value; a counting section configured to gradually increase a count value with a lapse of time when the failure detecting section is determining that the resolver is in the failure state, and configured to gradually decrease the count value with a lapse of time when the failure detecting section is determining that the resolver is not in the failure state; and a failure deciding section configured to finally decide that the resolver has caused the failure on the basis of the count value.

Abstract: Provided are a branching filter capable of well branching two electrical signals having a wide frequency band, and a wireless communication module and wireless communication device using same. The branching filter is provided with an input terminal (11), a first output terminal (12a), a second output terminal (12b), a first line conductor (14a) which is electromagnetically coupled to a resonator (13a) of an input stage so as to interconnect the input terminal (11) and the first output terminal (12a), a capacitor (15a) which interconnects the first line conductor (14a) and ground, and a second line conductor (14b) which is electromagnetically coupled to a resonator (13b) of an output stage and is connected to the second output terminal (12b), wherein a low pass filter is configured from the first line conductor (14a) and the capacitor (15a), and a band pass filter is configured from the first line conductor (14a), the second line conductor (14b), and a plurality of resonators.

Abstract: A forming method of an electrode includes the steps of providing an electrode material on a conductive part; exposing the electrode material at a temperature equal to or higher than a melting point of the electrode material in an oxidizing atmosphere; and exposing the melted electrode material, in a reducing atmosphere, at a temperature equal to or higher than the melting point of the electrode material and lower than the temperature at which the electrode material is exposed in the oxidizing atmosphere.