Hitachi, Ltd.

Nec Corporation

Renesas Electronics Corporation

Hitachi Astemo Ltd.

Hitachi-high-technologies Corporation

Renesas Technology Corp.

Hitachi High-tech Corporation

Nec C Orporation

Tatsuo Nakagawa

Masayuki Miyazaki

Akira Kotabe

Ryosuke Fujiwara

Akeo Satoh

Kenichi Osada

Kenji Yamada

Ming Liu

Tomoyuki Ishii

Kunio Harada

Goichi Ono

Shinya Kajiyama

Kenichi Mizugaki

Masahiro Matsumoto

Riichiro Takemura

Takayuki Kawahara

Takashi Oshima

Daisuke Maeda

Yuzuru Shimazaki

Junko Tanaka

Iwao Suzuki

Tsukasa Suenari

Yutaka Igarashi

Hideaki Kurata

Atsushi Isobe

Kiyotaka Sugiyama

Chihiro Uematsu

Yusaku Katsube

Kazuo Ono

Shigeru Oho

Yoshimitsu Yanagawa

Yohei Nakamura

Takahide Terada

Hiroshi Masuzawa

Masayoshi Ishibashi

Midori Kato

Takuma Nishimoto

Yasuyuki Okuma

Kanako Esaki

Akihiko Hyodo

Maki Fukano

Naoto Honda

Akiko Shiratori

The present disclosure provides a technique capable of manufacturing a measurement cell having a high specimen utilization ratio in the case of using a measurement cell that introduces a specimen into a surface hole. In the measurement cell manufacturing method according to the present disclosure, a measurement cell includes a channel wall protruding from the lower surface substrate toward the through-hole, and a specimen solution is introduced into a lower surface side space to introduce the specimen into the through-hole.

Measurement cell manufacturing method and measurement cell

A digital PCR measuring apparatus capable of measuring a melting curve with high accuracy is provided. The digital PCR measuring apparatus includes a temperature adjuster that controls a temperature of a sample container including a plurality of minute regions, a fluorescence measurement part that measures fluorescence intensity of a plurality of minute regions, and a controller that controls the temperature adjuster and the fluorescence measurement part. The controller controls the temperature adjuster to raise a temperature of the sample container, and, after removing air bubbles generated in the sample container, measures fluorescence intensity of a plurality of minute regions while controlling the temperature adjuster to lower the temperature of the sample container, and measures a melting curve of a plurality of the minute regions.

Digital PCR measuring device

An electronic circuit that recognizes a disconnected state from an outside during disconnection of a power supply line is provided. For this purpose, an electronic circuit includes: a load provided between a power supply line and an output terminal in the electronic circuit; a transistor provided between the load and the output terminal; a current generation circuit that generates current using a power supply voltage at a power supply line in the electronic circuit; and a control circuit that controls the transistor using a control voltage that changes according to the current generated by the current generation circuit.

Electronic circuit and sensor system

The present invention addresses the problem of providing a novel digital PCR analysis method. One embodiment of the novel digital PCR analysis method is a DNA detection method including the steps of: partitioning a DNA solution containing a fluorescent-labeled probe or a DNA intercalator and a target DNA to be detected into a plurality of compartments; carrying out a nucleic acid amplification reaction in the compartments; measuring a fluorescence intensity in association with a temperature change; calculating a melting temperature of a DNA double strand based on a change in the fluorescence intensity in association with the temperature change; and calculating a ratio of a fluorescence intensity at a second temperature that is lower than a first temperature in association with the temperature change to that at the first temperature.

Method and device for digital PCR measurement

An electronic circuit including an output circuit capable of reducing breakage while satisfying the characteristics of an output signal is provided. For this purpose, the electronic circuit includes output signal generation elementsandconfigured to generate an output signal, switchesand, and a voltage monitor circuitconfigured to monitor a voltage applied to an output terminal. Here, the output signal generation elementsandare connected to the output terminalvia the switchesand, and the voltage monitor circuitis configured to be able to measure a voltage higher than a power supply voltage VDD connected to the output signal generation elementand controls the switchesandso as to disconnect the output signal generation elementsandand the output terminalwhen the voltage of the output terminalbecomes equal to or higher than a predetermined value set higher than the power supply voltage VDD.

Provided are a semiconductor device and a sensor system capable of achieving improvement of noise resistance. Thus, an output circuitin the semiconductor device includes: input terminals; and an output terminal; an output amplifierconnecting the input terminalsto the output terminal; a feedback elementreturning the output terminalto the input terminal; a switching transistor; and a resistance element. A drain of the switching transistoris connected to the input terminal. The resistance elementis provided between a back gate of the switching transistorand a power source Vdd and has impedance of a predetermined value or more for suppressing noise of a predetermined frequency generated at the input terminal

Semiconductor device and sensor system

To prevent an output of an intermediate potential by suppressing sneaking of a current from a signal line to a power line at the time of disconnection of a power supply. A control circuit which receives a power supply voltage from a power line Land outputs an output signal to a signal line Lincludes: a load Rwhich is provided between the power line and the signal line; a first transistor Pwhich is provided between the load and the signal line; a second transistor Pwhich is provided between a well of the first transistor and the power line; and a gate control circuitwhich connects a gate terminal of the first transistor and a gate terminal of the second transistor to the signal line and turns off the first transistor and the second transistor, at the time of disconnection of a power supply.

Control circuit and sensor device

A biological sample analyzer includes: a cameraimaging a blood collection tubecontaining a biological sample; an image processing sectionand a comparative analysis sectionthat analyze the image imaged by the camera in order to extract an existence region of the biological sample; a light source, a photo sensorand a liquid-level position detection sectionthat detect the amount of transmitted light in the blood collection tubein order to detect a liquid-level position of the biological sample; and the comparative analysis sectionthat, based on the extracted existence region of the biological sample and the detected liquid-level position of the biological sample, identifies a determination target portion for a category of the biological sample, and acquires color information on the identified portion, in order to determine a category of the biological sample contained in the blood collection tube

Biological sample analyzer

A conventional power supply device has a problem in miniaturization. A power supply device generates a prediction value of an error signal from first and second error signals, and controls an output voltage so that the prediction value lies between first and second threshold values. The first error signal is obtained by converting an error voltage based on the difference between the output voltage and a reference voltage at a first timing. The second error signal is obtained by converting an error voltage based on the difference between the output voltage and the reference voltage at a second timing.

Semiconductor integrated circuit device and power supply device

An ultrasound diagnosis device includes: an ultrasound probe which transmits an ultrasound wave toward a examinee and receives a reflected wave from the examinee; and a main device which controls the transmitting and receiving of the ultrasound waves from the ultrasound probe and is operated to receive a receiving signal obtained by receiving the reflected wave from the examinee by the ultrasound probe, to generate an ultrasound image of the examinee, and to display the ultrasound image on a display screen, wherein the ultrasound probe includes a plurality of subarrays having a plurality of element circuits transmitting and receiving ultrasound signals and a plurality of reference voltage sources, and the plurality of subarrays and the plurality of reference voltage sources have a one-to-one correspondence.

Ultrasound probe and ultrasound diagnosis device using the same

A compact delay circuit that can dynamically change delay time is configured. A probe includes an analog memory unit that accumulates electric charges corresponding to a reflected wave of an ultrasonic wave produced by a difference between the acoustic impedances on a plurality of capacitorsand in turn outputs the electric charges accumulated on the capacitorsto an analog memory unit. In accumulating electric charges, when a control signal Ctls_l that increases delay time of the reflected wave is inputted, the analog memory unitaccumulates the same electric charges on two or more of the capacitorsfor a preset period, or in outputting electric charges, when a control signal Ctlo_l is inputted, the analog memory unitoutputs the electric charges accumulated on one of the capacitorsfor a preset period.

Ultrasound probe and ultrasound imaging apparatus using the same

A sample liquid-surface position measurement device includes: a first light source that illuminates a side face of a container containing a sample; a first optical measurement sensor that is located on the opposite side of the container from the first light source, and measures transmitted light from the first light source; a first label position measuring unit that measures a position of a label affixed to the container; and an analysis section that calculates a liquid-surface position or an interface position of the sample in the container, from transmitted-light intensity data in a longitudinal direction of the container which is measured by the first optical measurement sensor, and from the position of the label in the longitudinal direction of the container which is measured by the first label position measuring unit.

Sample liquid-surface position measurement device and sample liquid-surface position measurement method

A delay circuit and an ultrasonic imaging apparatus with the higher-accuracy delay time, the longer maximum delay time, and the lower power consumption are provided. An input line to which an analog input signal is input, a plurality of analog signal memory devices, an output line, a plurality of sampling switches that control connection/disconnection between the input line and the plurality of analog signal memory devices, a plurality of output switches that control connection/disconnection between the plurality of analog signal memory devices and the output line, and a clock generation part that generates sampling switch control signals for controlling the sampling switches and output switch control signals for controlling the output switches are provided, and phase of the sampling switch control signals may be shifted with respect to phase of the output switch control signals.

Delay circuit, electronic circuit using delay circuit and ultrasonic imaging device

Semiconductor integrated circuit device

A detection device configured to detect each color of a plurality of components of a biological-sample is provided. The detection device executes the detection process with respect to the container which stores the sample containing the first and the second components. The detection device includes an image pickup device for picking up an image of the container, a background section serving as background of the image pickup section, and a detection section for detecting color of the first component of the sample. The container is disposed between the image pickup section and the background section. The detection section is configured to identify a first region of the first component having the label attached to the container as background, and a second region of the first component having the background section as background so as to detect color information on the first component from at least one region of the first and the second regions.

Detection device that calculates a center of gravity of a container gap region

Growing community of inventors

Tokyo, Japan

Tatsuo Nakagawa