Konica Minolta, Inc.

Tdk Corporation

Nec Corporation

Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Yusuke Imai

Takashi Morimoto

Kazuhiko Inoue

Takeshi Ogata

Naoyoshi Yoshida

Takeshi Yanata

Satoshi Goto

Masayuki Uchida

Takeshi Oyanagi

Shin Kagaya

Daiki Suzuki

Atsuo Masui

Katsuhiro Takamoto

Haruyuki Hayashi

Kaname Ueda

Sadanobu Imamura

Masato Hayatsu

Takeshi Hashimoto

A transient voltage protection device includes: an element body; a cavity portion provided in the element body; a pair of internal electrodes disposed in the element body; and a pair of external electrodes connected to the pair of internal electrodes. The pair of internal electrodes extend along a first direction and face each other in a second direction intersecting the first direction. The cavity portion includes a gap region located between the pair of internal electrodes in the second direction. A tip portion of at least one of the pair of internal electrodes is in contact with only the element body.

Transient voltage protection device

A chip varistor includes an element body exhibiting varistor characteristics, internal electrodes containing a first electrically conductive material, and an intermediate conductor containing a second electrically conductive material. The intermediate conductor is separated from the internal electrodes in a direction in which the internal electrodes oppose each other, and is disposed between the internal electrodes. At least a part of the intermediate conductor overlaps the internal electrodes in the direction in which the internal electrodes oppose each other. The element body includes a low resistance region in which the second electrically conductive material is diffused. The low resistance region is located between the first and second internal electrodes in the direction in which the first and second internal electrodes oppose each other.

Method for producing chip varistor and chip varistor

A multilayer chip varistor includes an element body, first and second external electrodes, and first and second electrical conductor groups. The first electrical conductor group includes a first internal electrode connected to the first external electrode, and a first intermediate electrical conductor opposed to the first internal electrode. The second electrical conductor group includes a second internal electrode including a first electrically conductive material and connected to the second external electrode, and a second intermediate electrical conductor opposed to the second internal electrode. At least one of the first and second intermediate electrical conductors includes the second electrically conductive material. The element body includes a low electrical resistance region between the first and second internal electrodes. The second electrically conductive material is diffused in the low electrical resistance region.

Multilayer chip varistor

An analysis apparatus detects persons from a first image generated by a first camera that captures a vehicle, detects the number of occupants in the vehicle captured in the first image, detects persons from a second image generated by a second camera that captures the vehicle, detects the number of occupants in the vehicle captured in the second image, determines whether or not the first image and the second image satisfy a predetermined condition, and decides, in a case where the first image and the second image satisfy the predetermined condition, the number of occupants in the vehicle with use of the number of occupants in the vehicle captured in the first image and the number of occupants in the vehicle captured in the second image.

Analysis apparatus, analysis method, and non-transitory storage medium for deciding the number of occupants detected in a vehicle

A projection optical system that projects, while enlarging, an image displayed on an image display surface includes in order from an enlargement side: a first negative refractive power lens group; a second negative refractive power lens group; at least one positive or negative refractive power lens group; a stop; and a first positive refractive power lens group. The projection optical system causes magnification variation by varying distances between lens groups. The at least one positive or negative refractive power lens groups disposed between the second negative refractive power lens group and the stop is movable during the magnification variation. The first positive refractive power lens group is an only lens group that is positioned closer to a reduction side than the stop and is also movable during the magnification variation.

Projection optical system and projector

According to the present invention, there is provided an analysis apparatus () including an image analysis unit () that detects a predetermined part of a vehicle and persons on the vehicle from each of a plurality of images obtained by imaging the same vehicle from different directions a plurality of times, and detects coordinates of each of the plurality of persons in a coordinate system having the detected predetermined part as a reference; a grouping unit () that groups the persons detected from the different images, on the basis of the coordinates; and a counting unit () that counts the number of groups.

Analysis apparatus, analysis method, and non transitory storage medium

A projection optical system that enlarges an image to be displayed on an image display surface to an angle of view of 70 degrees or more, projects the enlarged image, and includes: a fixed focal length lens that has, in order from an enlargement side, a first optical system and a second optical system on a same optical axis, wherein the second optical system forms an intermediate image of the image, the first optical system enlarges and projects the intermediate image, the projection optical system comprises positive lenses that are positioned on both of the enlargement side and a reduction side of the intermediate image and are adjacent to each other, and following conditional expressions are satisfied: 0.4&#x3c;Tm1/Tw&#x3c;0.7 and T12w/Tw&#x3c;0.2 (2).

A projection zoom lens includes, sequentially from an enlargement conjugate side: a first lens group having negative refractive power; a second lens group having positive or negative refractive power; a third lens group having positive refractive power; a fourth lens group having negative refractive power; a fifth lens group having positive refractive power; and a sixth lens group having positive refractive power, and configured to perform a magnification variation by changing the interval between the respective lens groups, wherein the fourth lens group includes at least one positive lens and at least one negative lens, at least one of the positive lenses included in the fourth lens group satisfies the following Conditional Expressions: 0.71&#x2264;&#x3b8;g_Fp+0.004&#xd7;&#x3bd;dp&#x2264;0.73 and 15&#x2264;&#x3bd;dp&#x2264;25, and the back focus of the entire projection zoom lenses satisfies the following Conditional Expression 1.0&#x2264;BF/Fw&#x2264;2.7.

Projection zoom lens and image projection apparatus

A projection lens system includes a first lens group including a 1a-th lens group having a negative refractive power, a 1b-th lens group having a positive or negative refractive power, and a 1c-th lens group having a positive or negative refractive power. During a zoom, the first lens group remains stationary on an optical axis. During a focus from a remote distance side to a close distance side, the 1a-th lens group remains stationary on the optical axis while the 1b-th and 1c-th lens groups move toward the enlargement conjugate side along different loci respectively. Conditional formula &#x2212;4.7&#x3c;fl/fw&#x3c;&#x2212;2.5 is fulfilled at both the remote and close distance sides, where fl represents a focal length of the first lens group, and fw represents a focal length of the entire system at a wide-angle end.

Projection lens system with magnification-varying capability and projector

A zoom lens is a projection lens which is composed of a negative first lens group, a negative second lens group, a positive third lens group, a negative fourth lens group, a fifth lens group, and a positive sixth lens group in order from the enlargement conjugate side, and changes magnification by changing the intervals between the lens groups. At least the second, third, and fifth lens groups move when the magnification is changed, and the third lens group moves from the enlargement conjugate side to the reduction conjugate side when the magnification is changed from a telephoto end to a wide angle end. An aperture stop is disposed between the surface closest to the reduction conjugate side of the third lens group and the surface closest to the enlargement conjugate side of the fifth lens group, and is approximately telecentric on the reduction conjugate side.

Projection lens system having magnification changing function and projector

A projection lens includes a first lens group having negative refractive power, a second lens group having positive refractive power, a third lens group having negative refractive power, a fourth lens group having negative refractive power, a fifth lens group having positive refractive power, and a sixth lens group having positive refractive power, in sequence from an enlargement conjugate side, the projection lens performing magnification by changing the spacing between the lens groups, wherein at the time of magnification from the telephoto end to the wide-angle end, the second, third, fourth, and fifth lens groups are moved, and an aperture stop is arranged between the surface of the third lens group closest to a reduction conjugate side and the surface of the fifth lens group closest to the enlargement conjugate side.

Projection lens and projector with magnifying function

A variable magnification projection optical system includes, in order from a magnification conjugate side to a reduction conjugate side, a first lens group, a second lens group, a third lens group, a fourth lens group, a fifth lens group, a sixth lens group, and an optical stop which is arranged at any position from a front of a lens arranged closest to the magnification conjugate side in the fourth lens group to a front of a lens arranged closest to the magnification conjugate side in the fifth lens group, wherein the fourth lens group is configured to include, in order from the magnification conjugate side, two or more negative lenses and a positive lens, and wherein the following condition expressions (1), (2) and (3) are satisfied:||&#x2267;10&#x2003;&#x2003;(1)||&#x2267;15&#x2003;&#x2003;(2)0.87&#x2266;23&#x3c6;/23&#x2266;1.15&#x2003;&#x2003;(3).

Growing community of inventors

Osaka, Japan

Yusuke Imai