Mitsubishi Denki Kabushiki Kaisha

Fujifilm Corporation

Shigeki Kageyama

Nobuhito Masuda

Kentaro Nakamura

Takashi Murakami

Hideaki Tanaka

Takashi Motoda

Jun Arakawa

Shoichi Karakida

Katsuhiko Goto

Nobuaki Kaneno

Satoru Toda

Kazuo Mizuguchi

Kazuo Yokoyama

Jun Otsuji

Toru Takiguchi

It is an object of the present invention to provide a method capable of measuring a high concentration (up to 2500 U/L) of animal sample without dilutions, which is further capable of specifically measuring &#x3b1;-amylase even in a sample comprising animal &#x3b1;-amylase (EC 3.2.1.1) and glucoamylase (EC 3.2.1.3). The present invention provides a method for specifically measuring &#x3b1;-amylase contained in a non-human animal sample comprising &#x3b1;-amylase and glucoamylase without diluting said sample, wherein measurement is carried out by using an oligosaccharide having a protected nonreducing terminus and a p-nitrophenyl group at the reducing terminus thereof, and pH of reaction is 6 or more, and less than 7.

Method for measuring animal &#x3b1;-amylase

It is an object of the present invention to provide: a dry analytical element for analyzing pancreatic lipase wherein the triglyceride is not transcribed on the support to contaminate a transportation slip or other analytical elements and wherein an additive solution of the triglyceride neither reaggregates nor precipitate, so that the dry analytical element is stable and is compatible with production. The present invention provides a dry analytical element for measuring pancreatic lipase contained in body fluid, which comprises triglyceride of long chain alkyl fatty acid having 12 to 22 carbon atoms, monoglyceride lipase, and a glycerin measurement reagent, and which comprises a water-impermeable support and at least one spreading or reagent layer, wherein a hydrophilic polymer at a weight ratio of 1.8:1 or greater with respect to the triglyceride is contained.

Dry analytical element for lipase measurement

It is an object of the present invention to provide a dry analytical element for pancreatic lipase analysis having high selectivity with respect to pancreatic lipase, whose multianalyte correlation has been improved. The present invention provides a dry analytical element for measurement of pancreatic lipase contained in a body fluid, which comprises at least one development layer and/or reagent layer containing diglyceride or triglyceride of long-chain alkyl fatty acid having 12 to 22 carbon atoms, monoglyceride lipase, and a glycerine measurement reagent, wherein the development layer and/or the reagent layer comprise two or more types of anionic surfactants and at least one type of the anionic surfactant is alkylarylsulfonate.

The present invention provides a method for producing a dry analytical element for measurement of pancreatic lipase contained in a body fluid which contains triglyceride of long chain alkyl fatty acid having 12 to 22 carbon atoms, monoglyceride lipase, and a glycerine measurement reagent, and comprises a water-impermeable support and at least one spreading or reagent layer, said method comprising the step of coating an emulsion/dispersion solution of triglyceride with an average particle size of 1 &#x3bc;m or less.

A semiconductor device includes a multiplayer substrate with a cavity, a semiconductor chip in the cavity, wiring lines with lands, a cover of a material, covering the semiconductor chip and having a protruding part, and chips bonded to the wirings lines with a solder having a low melting point. The protruding part has a height from the surface of the multiplayer substrate greater than the thickness of the wiring layer.

Semiconductor device

A semiconductor device which has a preferable construction for downsizing, in which chip part(s) and a cap are not short-circuited, is provided. The semiconductor device includes: a substrate having a first surface with a cavity and a second surface opposite to the first surface; a semiconductor chip arranged in the cavity; a chip part mounted on the second surface of the substrate; a heat sink which is mounted on the second surface of the substrate and transfers heat liberated from the chip; a cap which is fitted to the substrate, covers the second surface of the substrate, and is joined to the heat sink; and an insulator provided between the cap and the chip part. By providing the insulator, short-circuiting of the chip part and the cap is prevented. Consequently, a distance between the cap and chip part can be shortened to downsize the size of semiconductor device.

A semiconductor optical modulator includes an active region including a multi quantum well structure. Thereby, it is possible to absorb laser light having two polarization wave modes to a high degree as well as increase the number of quantum wells without fracturing the crystal, thereby providing a modulator having no polarization plane dependency and an increased extinction ratio. Further, a plurality of electrodes, each having an aperture, are provided at an upper surface and an electrode having the same number of apertures as on the upper surface is provided at a lower surface opposite the other electrodes. Multiple laser light beams incident from the apertures at the upper surface are respectively modulated and output from the apertures at the opposing lower surface. Therefore, in the active region, laser light beams including both TE and TM modes are absorbed or transmitted by the modulator without dependency on their respective polarization planes.

Semiconductor optical modulator

An apparatus for producing a compound semiconductor layer includes a first flow rate controller for adjusting flow rates of respective material source gases, a gas mixing pipe for mixing the respective material source gases, gas distributing pipes for distributing gases and connected to the gas mixing pipe, a second flow rate controller for adjusting flow rates of the material source gases flowing through the gas distributing pipes and for supplying the material source gases to a reaction tube, a pressure detector for detecting pressure in the gas mixing pipe, and a third controller responsive to the pressure detector for controlling the second flow rate controller to maintain a constant pressure in the gas mixing pipe. Retardation of the gases between the first and second flow rate controllers is avoided, improving thickness uniformity in grown layers.

Apparatus for producing compound semiconductor devices

A semiconductor laser producing visible light includes a first conductivity type GaAs substrate, a first conductivity type (Al.sub.w Ga.sub.1-w).sub.0.5 In.sub.0.5 P cladding layer disposed on the substrate, a (Al.sub.z Ga.sub.1-z).sub.0.5 In.sub.0.5 P active layer disposed on the first conductivity type cladding layer wherein 0.ltoreq.z&lt;w, a second conductivity type (Al.sub.w Ga.sub.1-w).sub.0.5 In.sub.0.5 P cladding layer having a lattice constant and disposed on the active layer, a first conductivity type In.sub.1-x Ga.sub.x As.sub.1-y P.sub.y current blocking layer disposed on part of the second conductivity type cladding layer wherein y is approximately equal to -2x+2, 0.5.ltoreq.x&lt;1, and 0&lt;y.ltoreq.1 so that the lattice constant of the current blocking layer is substantially the same as the lattice constant of the second conductivity type cladding layer, a current concentration and collection structure in contact with the second conductivity type cladding layer for concentrating current flow in a central part of the active layer, and first and second electrodes disposed in contact with the substrate and current concentration and collection structure, respectively.

Growing community of inventors

Tokyo, Japan

Shigeki Kageyama