Renesas Electronics Corporation

Hitachi, Ltd.

Fujifilm Corporation

Renesas Technology Corp.

Hitachi-johnson Controls Air Conditioning, Inc.

Stanley Electric Co., Ltd

Takayuki Hashimoto

Masaki Shiraishi

Noboru Akiyama

Takashi Hirao

Tetsuya Kawashima

Nobuyoshi Matsuura

Mutsuhiro Mori

Yukihiro Satou

Koji Tateno

Masahiro Masunaga

Hideo Ishii

Takashi Ooishi

Masayoshi Murofushi

Shin Miura

Takuya Ishigaki

Rei Kasahara

Yasuyuki Zanma

A processor is configured to derive, with reference to a database in which a plurality of reference images are saved such that an interpretation result about an abnormal shadow included in each reference image of the plurality of reference images is associated with the reference image, a degree of similarity between a target image and each of the plurality of reference images; the processor is configured to analyze, for a similar reference image, among the plurality of reference images, for which the degree of similarity is greater than or equal to a predetermined threshold value, an interpretation result regarding the similar reference image to thereby derive progression information about an abnormal shadow included in the similar reference image; and the processor is configured to statistically analyze the progression information to thereby derive prediction information for predicting future progression of an abnormal shadow included in the target image.

Progression prediction apparatus, progression prediction method, and progression prediction program

Provided are an image generation device, an image generation method, an image generation program, a learning device, a learning method, and a learning program that can check an efficacy of a medicine. A processor acquires a medical image including a lesion and information related to a type of medicine to be administered to a patient, from whom the medical image has been acquired, and an administration period of the medicine. The processor generates, from the medical image, a post-administration image indicating the lesion after the medicine is administered to the patient for the administration period.

Image generation device, image generation method, image generation program, learning device, learning method, and learning program

A display control unit displays a medical image from which at least one region of interest is extracted on a display unit. A correction unit corrects a boundary of the region of interest according to a correction instruction for the boundary of the region of interest extracted from the displayed medical image. An image generation unit generates a weighted image in which each pixel in the medical image has, as a pixel value of each pixel, a weight coefficient representing a weight of being within the region of interest, by setting an initial weight coefficient for the extracted region of interest and setting a corrected weight coefficient for a corrected region for which the correction instruction is given in the medical image.

Weighted image generation apparatus, method, and program, determiner learning apparatus, method, and program, region extraction apparatus, method, and program, and determiner

An interlobar position specifying unit specifies an interlobar position in a lung field area included in a three-dimensional image. An expansion unit expands a plane area at the interlobar position in a thickness direction to generate an expansion area including an interlobar membrane. A projection processing unit processes the expansion area by a projection method that emphasizes the interlobar membrane to generate a projection image. The display control unit displays the projection image on a display.

Interlobar membrane display apparatus, method, and program

The image processing apparatus includes: a sectional image acquisition unit that acquires a plurality of sectional images in a plurality of sectional directions of a test subject; a primary classification unit that performs a primary classification process of specifying, with respect to each of the plurality of sectional images, the type of a tissue or a lesion to which each pixel of each sectional image belongs; a secondary classification unit that performs a secondary classification process of evaluating results of the primary classification process with respect to each of the plurality of sectional images, with respect to a pixel that is common to the plurality of sectional images, to re-specify the type of a tissue or a lesion to which the pixel that is common to the plurality of sectional images belongs; and a correction unit that corrects a result of the secondary classification process on the basis of an anatomic feature of the tissue or the lesion, or an image feature value thereof.

Image processing apparatus, image processing method, and image processing program

The present invention provides an outdoor unit for an air conditioner that can be constructed at low cost while reducing risk of malfunction. The outdoor unit has a compressor; a fan motor; a compressor driver board having a compressor inverter circuit and a compressor driver circuit; and a fan driver board having a fan inverter circuit and fan driver circuit. The compressor driver board has at least either: a shared control circuit that feeds a first switching signal for a compressor to the compressor driver circuit and feeds a second switching signal for a fan to the fan driver circuit; or a shared power source circuit that steps down a first DC voltage to a second DC voltage and supplies the second DC voltage to the compressor driver circuit and to the fan driver circuit.

Outdoor unit for air conditioner

Provided is a vehicular lamp capable of achieving cost reduction by improving assembling workability and reducing the number of parts. The vehicular lamp includes a housing and an outer lens that covers the front opening of the housing to define a light chamber; and an LED, a light guide inner lens that guides light emitted from the LED, a light source substrate on which the LED is mounted, an extension arranged around the light guide inner lens, and a power supply unit fixed to the housing, which are accommodated in the light chamber. The light guide inner lens is composed of first and second divided pieces that are arranged in an axial direction of the light guide inner lens, and the first divided piece is fixed to the housing together with the light source substrate and the second divided piece is fixed to the extension.

Vehicular lamp

An outdoor unit for an air conditioner, and an air conditioner are provided that allow for effectively cooling a cooled part such as a power element, even when a refrigerant is not circulated, to prevent the part from being damaged by generated heat. Said outdoor unit and said air conditioner each include: a casing; a heat exchanger that exchanges heat between a refrigerant flowing therein and air; a blower fan that sucks air outside the casing and forces the air to pass through the heat exchanger; an electric parts box that has a board and a part to be cooled; and a cooling member that is thermally connected with said part and cools it with a refrigerant flowing therein, wherein the cooling member is arranged on an outer wall surface of the electric parts box in a path of the air blown by the blower fan.

Outdoor unit for air conditioner, and air conditioner

An apparatus is adapted to drive an insulating gate-type semiconductor element by a first control voltage and a second control voltage, that are supplied to a first insulating gate and a second insulating gate, respectively, and includes a first noise filter inputting a signal about current that passes through the insulating gate-type semiconductor element, a first comparator making a comparison between an output signal of the first noise filter and a first reference signal and outputting a first comparison result, a first control voltage output circuit, and a second control voltage output circuit, the second control voltage output circuit being adapted to reduce the second control voltage when it is determined from the first comparison result that overcurrent passes through the insulating gate-type semiconductor element, the first control voltage output circuit being adapted to reduce the first control voltage after the second control voltage is reduced.

Apparatus for controlling insulating gate-type semiconductor element, and power conversion apparatus using apparatus for controlling insulating gate-type semiconductor element

The present invention provides a switching device () for power conversion in which a first gate electrode (), a p-type channel layer () having an n-type emitter region (), a second gate electrode (), and a p-type floating layer () are repeatedly arranged in order on the surface side of an n-type semiconductor substrate (). An interval a between the two gates () that sandwich the p-type channel layer () is configured to be smaller than an interval b between the two gates () that sandwich the p-type floating layer (). The first gate electrode () and the second gate electrode () are both supplied with drive signals having a time difference in drive timing.

Switching device for power conversion and power conversion device

A semiconductor device of this invention (an IGBT with a built-in diode) includes: an n-type drift layer; a p-type channel regionthat is arranged in contact with the surface side of this n-type drift layer; a gate electrodethat is provided in a trench T provided so as to penetrate this p-type channel regionand reach to the n-type drift layerthrough a gate insulating film; an n-type source regionthat is provided so as to contact the trench T on the surface side of the p-type channel region; a high-concentration n-type regionthat is arranged in contact with the back side of the n-type drift layer; and a high-concentration p-type regionthat is arranged in contact with the back side of this high-concentration n-type region; in which a junction of the high-concentration n-type regionand the high-concentration p-type regionis a tunnel junction. According to this semiconductor device, it is possible to form the IGBT and the diode on a single chip. Moreover, it is possible to avoid problems of 'snap back' and 'current concentration.'

Semiconductor device and power converter

There is provided a semiconductor device including a first emitter layer of a first conductivity type, a drift layer of a second conductivity type, adjacent to the first emitter layer, a channel layer of the first conductivity type, adjacent to the drift layer, a second emitter layer of the second conductivity type, adjacent to the channel layer, a collector electrode electrically coupled to the first emitter layer, an emitter electrode electrically coupled to the second emitter layer, a first trench-gate electrode for controlling on and off of an electric current flowing between the collector electrode and the emitter electrode, and a second trench-gate electrode for controlling a turn-off power loss. The semiconductor device further includes a thyristor unit made up of the first emitter layer, the drift layer, the channel layer, and the second emitter layer. Further, the electric current has saturation characteristics in a short circuit state, and short circuit capability of a double-gate semiconductor switching device is improved because the magnitude of electric current flowing during a short circuit is under control due to the electric current saturation characteristics.

Semiconductor device and electric power converter in which same is used

A semiconductor substrate capable of detecting operating current of a MOSFET and diode current in a miniaturized MOSFET such as a trench-gate type MOSFET is provided. A semiconductor substrate includes a main current region and a current sensing region in which current smaller than main current flowing in the main current region flows. The main current region has a source electrode disposed on a main surface, the source electrode being in contact with a p-type semiconductor region (body) and an n-type semiconductor region (source), and the current sensing region has a MOSFET current detecting electrode and a diode current detecting electrode on a main surface, the MOSFET current detecting electrode being in contact with the p-type semiconductor region (body) and the n-type semiconductor region (source), the diode current detecting electrode being in contact with the p-type semiconductor region (body).

Semiconductor substrate and semiconductor chip

The semiconductor device is included in the LED driving circuit (current regulator) of driving the LED array (with series-connected number m&#xd7;parallel-connected number n), and is formed of a plurality (n pieces) of LED driving devices of controlling a current (constant-current driving) flowing in each string. A vertical semiconductor device, for example, a vertical MOSFET is used as the LED driving device. Both of a main device functioning as a constant-current driving device and a subsidiary device functioning as a circuit-breaking switch during dimming are formed inside a chip of the device, which are formed of the vertical semiconductor devices. In a first surface of the device, each source region of the main device and the subsidiary device is formed so as to be insulated from each other through an isolation region.

Growing community of inventors

Tokai, Japan

Takayuki Hashimoto