Hitachi, Ltd.

Hitachi-high-technologies Corporation

Nissan Motor Company Limited

Hajime Katou

Ryo Miyake

Katsuhiro Kambara

Hiroyasu Uchida

Shigenori Watari

Tomonori Mimura

Takenori Okusa

Miki Taki

Akira Inagaki

Yoichiro Suzuki

Shigeo Ohashi

Yoshihiro Kondo

Tsuyoshi Nakagawa

Takashi Naganawa

Rintaro Minamitani

Masato Nakanishi

Yuuji Yoshitomi

Hiroshi Mitsumaki

Takao Terayama

Takeshi Shibuya

Yasushi Nomura

Shinji Matsushita

Naruo Watanabe

Takahiro Watanabe

Yasuhiko Sasaki

Shigenori Togashi

Takao Nakadate

Yoshihiro Konno

Hiroyuki Yuasa

Yukako Asano

Masaharu Satou

Tetsuro Miyamoto

Hisao Inami

Hikaru Nakajima

Yuuki Murayama

Mineki Ri

Chemical analysis apparatus for inserting a sample serving as an analyzable substance and a reagent into a reaction container and agitating by irradiating sound waves to the reaction container, the chemical analysis apparatus including: a piezoelectric element generating sound waves; and a driver for driving the piezoelectric element, and including: a wave form producing device for producing an oscillation waveform having a fundamental frequency of the sound waves to be irradiated; an auxiliary waveform producing device for producing an oscillation wave form having a frequency lower than that of the oscillation waveform; a multiplying circuit creating a multiplied waveform between the waveform and the wave form; and, a power amplifier for power-amplifying the multiplied waveform, wherein it is intermittently irradiated with the sound wave in the reaction container, and further, the wave form producing device has a function capable of frequency-modulation with a prescribed frequency width.

Chemical analysis apparatus and chemical analysis method

A chemical analysis apparatus comprising reaction containers containing therein a substance to be analyzed; an agitating mechanism spaced from the substance to be analyzed and agitating said substance to be analyzed with a liquid in said reaction container; and, a measuring portion for measuring physical properties of the substance to be analyzed, said agitating mechanism having a sound supply portion supplying sound waves to the substance to be analyzed, wherein said sound supply portion comprises a mechanism changing, in time, intensity of ultrasonic waves to be irradiated so as to apply pulsation to a swirl flow in the reaction container.

A microreactor capable of reducing a pressure drop in an entire system includes a mixerhaving a mixing channel for mixing two kinds of raw materialsand, and a reactorhaving a reaction channel connected to the downstream side of the mixing channel to receive the mixture flowing out from the mixing channel and cause chemical reactions of the mixture inside the reaction channel. The reactora first reactor unithaving a large surface-to-volume (S-V) ratio of the reaction channel at an upstream side, and a second reactor unithaving a small S-V ratio of the reaction channel at a downstream.

Microreactor

Multiple piezoelectric elementsare arranged in a row along the top of liquid level in the reaction vessel. An ultrasonic reflecting materialis installed on the bottom of the portion of the heat insulating bathwhere heat insulating mediumis stored. A lateral ultrasonic waveis generated on the lower side is generated by actuation of the piezoelectric element. Waveis reflected by the ultrasonic reflecting material. As a lower ultrasonic waveadvances along the wall surface of the reaction vessel, it collides with the specimen liquid level, thereby causing a portion of the liquid level closer to the piezoelectric elementto be raised. When the lateral ultrasonic waveis applied to this portion, it reaches the inclined portion of the raised liquid level of the specimen. Swirling flow by agitationis produced by the acoustic radiation pressure of the ultrasonic wave. The specimen and reagent are mixed and agitated by this swirling flow.

Automatic analyzer

A suspension structure is provided having a shock absorber for dampening the vibration from a wheel and a stabilizer for suppressing the up and down strokes in opposite phases generated from opposing wheels on a vehicle. The end portion of the stabilizer is connected to the lower end portion of the shock absorber.

Suspension structure

Provided is a chemical analysis apparatus comprising a mechanism which can efficiently agitate a substance to be agitated so that a sample and a reagent are agitated and mixed together in a shorter time with a saved consumption power, incorporating a plurality of sound sources or reflecting plates, and a reaction container is located between one of the sound sources and another of the sound sources or one of the reflecting plates, whereby sound waves can be irradiated toward the reaction container in several directions in order to efficiently fluidize a solution in the reaction container.

A chemical analysis apparatus in which a sample to be analyzed and a reagent are placed into a reaction container, and sound waves are irradiated to said reaction container so as to agitate them, wherein said chemical analysis apparatus comprises a piezoelectric element producing said sound waves, and drivers for driving said piezoelectric element, said sound waves being intermittently irradiated into said reaction container.

There is provided a group of testing apparatuses that realizes high-level testing and high quality medical treatment by conducting tests using apparatuses and facilities that are located in a distributed condition. A distributed testing apparatus is configured to be connectable to a network system to which a host testing apparatus is connected, wherein the distributed testing apparatus has a testing part that assays genetic information of a specimen, a transmission part that transmits test results information of the testing part and a specimen ID corresponding to the specimen to the host testing apparatus through the network, a receiver part that receives through the network assessment information from the host testing apparatus that corresponds to the transmitted test results information, and an output part that outputs the received information.

Distributed testing apparatus and host testing apparatus

A hydraulic shock absorber in which the flow of hydraulic fluid induced in each of extension and compression hydraulic fluid passages, by sliding movement of a piston, is controlled by a main disk valve to generate damping force. The valve opening pressure of the main disk valve is adjusted by the pressure in a back-pressure chamber. In a low piston speed region, the main disk valve closes a back-pressure chamber inlet passage. Therefore, the pressure in the backpressure chamber will not rise, and sufficiently small damping force is obtained. When the main disk valve opens, the backpressure chamber inlet passage opens simultaneously. Consequently, the pressure in the backpressure chamber rises, and the damping force increases.

Hydraulic shock absorber

An independent suspension for a vehicle, including upper and lower arms pivotally moveable in a vertical direction of the vehicle, an axle with a wheel center which is connected with the upper and lower arms, and a tie rod connected with the axle at a connection point rearward of the wheel center in a fore-and-aft direction of the vehicle. The lower arm is connected to the vehicle body at front and rear connection points spaced from each other in the fore-and-aft direction of the vehicle through front and rear pivot shafts with bushings. The central axis of the front pivot shaft is inclined relative to the central axis of the rear pivot shaft in a toe-in direction of the wheel.

Independent suspension for vehicle

An electronic apparatus includes a case mounting a semiconductor element within an inside thereof, a heat-receiving member thermally connected with the semiconductor element, a heat-radiation member disposed on an inner side surface of the casing, and a liquid driver for driving a liquid coolant between the heat-radiation member and the heat-receiving member. The apparatus further includes a tank accumulating the liquid coolant therein with at least a predetermined volume of the coolant to delimit a coolant surface within the tank, wherein the tank, the heat-radiation member and the heat-receiving member are connected with tubes, and a suction end portion of a suction pipe connected into the tank is located at a position which is always below the coolant surface irrespective of change of position of the tank.

Electronic apparatus

A chemical analyzer for measuring a concentration of components of a sample liquid, by mixing the sample liquid with reagents, so as to react the reagents upon the components thereof, includes a carrier having an introducing portion through which the sample liquid is injected, passages for distributing the sample liquid injected from the introducing portion, and plural reactor portions which hold the sample liquid therein to be mixed with the reagent, thereby to react. A movable driver portion is provided on which the carrier is mounted and a reagent charging device is provided for ejecting the reagents which are different for the respective plural reactor portions of the carrier, sequentially. Further, a detector is provided for detecting the components after mixing the reagents with the sample liquid.

Chemical analyzer and chemical analyzing system

In the structure of an electronic apparatus, in which cooling of an heat-generating element is conducted through circulation of a liquid, in particular, for providing a liquid-cooling structure of being high in reliability, while also considering safety and assembling property into the consideration, wherein a water-cooling jacket is thermally connected with a heat-generating element , while thermally connecting a heat-radiation pipe with a heat-radiation plate provided on a rear surface of a display , wherein a coolant liquid is circulated between the water-cooling jacket and the heat-radiation pipe , by means of a liquid driving device . The heat-radiation pipe is connected onto a whole area of the heat-radiation plate, like crawling thereupon. A tank is provided in an upper portion of the heat-radiation plate , and is connected with the heat-radiation pipe

Liquid circulation cooling system for electronic apparatus

In an electronic equipment or apparatus, having water-cooling structure able to circulate/supply a cooling liquid with stability, for dealing with an increase of heat-generation of a heat-generating element, accompanying with an increase of processing performances, a pipe, which is located at a side where the cooling water flows out from a tank building up the water-cooling system, is extended up to the position of a center of the tank and disposed therein. Also, two (2) pieces of plates are provided for dividing the vicinity of an inlet portion of a pipe, through which the cooling water flows out, within the tank, and further, when injecting the cooling water into the tank, an injection jig for the cooling water is used, which has a connector portion with the tank.

Multiple piezoelectric elements are arranged in a row along the top of liquid level in a reaction vessel . An ultrasonic reflecting material is installed on the bottom of the portion of the heat insulating bath where heat insulating medium is stored. A lateral ultrasonic wave is generated on the lower side by actuation of the piezoelectric element . Wave is reflected by the ultrasonic reflecting material . As lower ultrasonic wave advances along the wall surface of the reaction vessel, it collides with the specimen liquid, thereby causing a portion of the liquid level closer to the piezoelectric element to be raised. When lateral ultrasonic wave is applied to this portion, it reaches the inclined portion of the raised liquid level of the specimen. Swirling flow by agitation is produced by acoustic radiation pressure of the ultrasonic wave. The specimen and reagent are mixed and agitated by this swirling flow.

Growing community of inventors

Chiyoda, Japan

Hajime Katou