Hitachi High-tech Science Corporation

Hitachi-high-technologies Corporation

Hitachi High-tech Corporation

Fdk Corporation

Hideyuki Akiyama

Hiroshi Sasaki

Masao Kamahori

Yusuke Goto

Kiyotoshi Mori

Masafumi Watanabe

Kantaro Maruoka

Kentaro Yamada

Shintaro Kubo

Noriaki Sakai

Ryusuke Hirose

Kiyoshi Hironaka

Toshitada Takeuchi

Ryoji Inaba

Motohiro Yamazaki

Akihiro Fujii

Yu Ishige

Takashi Gomi

Katsuo Yamada

Toru Hirohashi

Kosaku Toyosaki

Tohru Hirohashi

Katsunobu Hama

Disclosed is an apparatus and method for analyzing an evolved gas, wherein the precision of detection of a gas component is improved without enlarging the apparatus. The apparatus includes a gas component evolving unit, a detection member for detecting the gas component, and a mixed gas channel for allowing a mixed gas containing the gas component and carrier gas to flow therethrough, and further includes a branch channel branched from the mixed gas channel, an inert gas channel for allowing an inert gas to flow therethrough, a first flow rate regulator for adjusting the flow rate of the carrier gas, a second flow rate regulator for adjusting the flow rate of the inert gas, and a flow rate control unit for controlling the second flow rate regulator such that the flow rate of the mixed gas guided to the detection member is a predetermined value.

Apparatus and method for analyzing evolved gas

A composite structure with high pressure resistance that is suitable for a flow channel is produced by reducing the number of components while maintaining the excellent chemical resistance and high stress tolerance inherent to a glass substrate and a resin substrate. A glass substrate surface is modified with a hydrolyzable silicon compound, and the glass substrate is brought into contact with the resin substrate. Subsequently, the contact surface between the glass substrate and the resin substrate is heated to a temperature from the glass transition temperature to the pyrolysis temperature of the resin substrate, eliminating gaps between the glass substrate and the resin substrate to bring them into close contact with each other, and causing chemical binding or anchor effects between the glass substrate and the resin substrate via the hydrolyzable silicon compound. Thus, the glass substrate and the resin substrate are firmly fixed to each other.

Glass/resin composite structure and method for manufacturing same

The apparatus for mass analysis includes: a heating unit heating a sample containing a first substance and a second substance having different gasification temperatures to evolve gas components; a heating control unit controlling the heating unit to heat the sample at a first temperature point at which gas of the first substance is evolved and gas of the second substance is not evolved, until reaching a first time point, whereafter the heating unit is controlled to heat the sample until reaching a second temperature point at which gas of the second substance is evolved; and an analysis control unit performing mass analysis under a first measurement condition assigned to the first substance until reaching the first time point at the first temperature point, and performing mass analysis under a second measurement condition assigned to the second substance at the second temperature point.

Apparatus for and method of mass analysis

Disclosed herein are an evolved gas analyzer and a method for analyzing evolved gas, the apparatus cooling a sample holder in a short time without using excessive cooling performance and without providing the entire apparatus in an excessively large size, thereby enhancing analysis work efficiency. The apparatusincludes: a sample holderholding a sample S; a heating unitreceiving the sample holder therein, and evolving a gas component G by heating the sample; a detecting meansdetecting the gas component; a sample holder supporting unitL movably supporting the sample holder to move the sample holder to predetermined outer and inner positions of the heating unit; and a cooling unitprovided at an outside of the heating unit, and cooling the sample holder by being in direct or indirect contact with the sample holder, when the sample holder is moved to a discharging position.

Evolved gas analyzer and method for analyzing evolved gas

Disclosed herein is a method for analyzing evolved gas and an evolved gas analyzer, the method correcting detection sensitivity differences in analysis devices, day-to-day variations thereof, thereby quantifying a measurement target with high accuracy. The method for analyzing evolved gas of the apparatus including: a sample holder; a heating unit evolving a gas component; an ion source generating ions by ionizing the gas component; a mass spectrometer detecting the gas component; and a gas channel through which mixed gas flows, the method including: operating a discharged flow rate controlling process of controlling a flow rate of the mixed gas discharged to outside; operating a sample holder cooling process of cooling the sample holder by bringing the sample holder into contact with a cooling unit; and operating a correction process including: correcting a mass spectrum position; calculating a sensitivity correction factor; and calculating a heating correction factor.

Method for analyzing evolved gas and evolved gas analyzer

Disclosed herein is a method for correcting an evolved gas analyzer and the evolved gas analyzer. The method includes: correcting a mass spectrum position to be located at a reference spectrum position, the mass spectrum position corresponding to a mass-to-charge ratio m/z of a mass spectrum of a gas component of a reference sample; calculating a sensitivity correction factor Cs=Ss/S by using an area S and a reference area Ss of a chromatogram, the sensitivity correction factor being used to measure an area of a chromatogram of the gas component of a test sample; and calculating a heating correction factor H=t/ts by using a time t and a reference time is indicating a maximum peak of the chromatogram about the reference sample, the heating correction factor being used to correct a heating rate of the test sample when measuring the gas component of the test sample.

Method for correcting evolved gas analyzer and evolved gas analyzer

Disclosed herein is an evolved gas analyzer and a method for analyzing evolved gas, the apparatus enhancing detection accuracy for gas component without providing the apparatus in a large size. The apparatus includes a heating unit evolving a gas component by heating a sample, a detecting means detecting the gas component, a gas channel connecting the heating unit to the detecting means, the gas channel through which mixed gas of the gas component and carrier gas flows, wherein the gas channel includes a branching channel being open to outside and including a discharge flow rate controlling device, and a flow rate control device controlling the discharge flow rate controlling device based on a detection signal received from the detecting means so as to control the detection signal to be within a predetermined range.

To prevent lowering of sensitivity of a flow cell based on total reflection of light at an outer face of a glass capillary at a joint part with a pipe, the flow cell includes, at joint parts with a pipeto introduce solution to a glass capillaryand with a pipe to discharge solution from the capillary, an inorganic material layerthat reflects measurement light to modify the outer face of the glass capillary as well as a reinforcement layerto modify the surface thereof.

Flow cell and liquid analyzer

The present invention provides a transformer including a first bobbin around which a primary coil is wound, a second bobbin which is disposed adjacent to the first bobbin and around which a secondary coil is wound, a core disposed across the first and second bobbins and forming a closed magnetic path. The core is divided into a first core positioned on the side where the first bobbin is present and a second core positioned on the side where the second bobbin is present, and an insulating member is interposed in a magnetically coupled portion between the first core and the second core, the insulating member including outer circumference sheaths that cover at least one of the first and second cores and a barrier interposed between the opposing surfaces of the first and second cores.

Transformer

[Problems] To realize a structure that is substantially highly reliable, that solves a problem of a wire break accompanied by an application of an external force to a terminal and at the same time solves a problem of a wire break caused by heat effects during dip soldering, without causing a strength reduction of the terminal, cost increase, and wire thinning. [Means for Solution] A winding component in which a terminalis disposed in a protruding manner to a bobbinprovided with a winding portion, and a winding end is connected to the terminal, wherein a resin protrusionis formed integral with the bobbin at a foot of the terminal, the resin protrusion is shaped with a part of its circumference notched so that a side surface of the terminal partially juts out, and a wire material that is wound around the resin protrusion a plurality of times comes into contact with the terminal and is to be connected by dip soldering.

Winding component

Detection sensitivity is improved by increasing the amount of light of beams that irradiate a sample cell without causing saturation of a detector with ultraviolet beams or visible beams. This spectrophotometer includes a sample cell, which stores a sample to be measured, a visible light source and an ultraviolet light source each for supplying an incident beam that enters the sample, a spectroscope, which disperses a beam that has passed through the sample, an optical detector, which detects beams dispersed from such beam (spectrum), and a dichroic element which reflects or transmits ultraviolet beams from the ultraviolet light source and which transmits or reflects visible beams from the visible light source. Optics are configured such that ultraviolet beams and visible beams that have passed through or have been reflected by the dichroic element enter the sample cell.

Growing community of inventors

Tokyo, Japan

Hideyuki Akiyama