Shimadzu Corporation

Gunze Limited

Hideki Sato

Yasuo Tsukuda

Akira Aono

Kazuteru Takahashi

Takeshi Uchida

Yusuke Tateishi

Goki Matsumura

Shin-ichi Kuroda

Mieko Ishikawa

Naru Maruoka

Shota Hata

Mitsutaka Matsuzaki

A switching mechanismcan perform switching to a pressurized state in which gas is supplied from a pipeto an insertion tube, or a derivation state in which gas in a head spacethat is pressurized is derived from the insertion tubeto the pipevia a collection unit. The switching mechanismincludes a discharge valvethat puts the insertion tubeand the pipeinto a non-communication state in the pressurized state and puts the insertion tubeand the pipeinto a communication state in the derivation state. A resistance pipesupplies gas to a channel between the collection unitand the discharge valvein the derivation state.

Sample introduction device

A gas chromatograph-mass spectrometer includes a gas chromatograph having a column that separates a sample into components, a mass spectrometer provided in a vacuum housing, and an interface that introduces a sample that has been separated into components in the gas chromatograph into the mass spectrometer, and the interface includes a partition wall fixed to the vacuum housing to close an opening formed in the vacuum housing, a line pipe that is fixed to the partition wall to penetrate the partition wall, includes a sample outlet line of the column and introduces the sample into the mass spectrometer, a heater that heats the line pipe in an axial direction, and a fixer that fixes the heater being in contact with the partition wall.

Gas chromatograph-mass spectrometer

The present invention provides an artificial blood vessel that can achieve a balance between cell penetration efficiency and crush resistance and can regenerate a blood vessel at very high efficiency. Provided is an artificial blood vessel having a tubular shape, including: a foam containing a bioabsorbable material; a reinforcement A containing a bioabsorbable material; and a reinforcement B including threads containing a bioabsorbable material, the foam being reinforced with the reinforcements A and B, wherein the reinforcement A is a non-woven fabric, a film, or a weft-knitted, warp-knitted, or woven fabric made of knitted or woven fibers, the reinforcement B includes monofilament threads each having a cross-sectional diameter of 0.1 mm or more and 1 mm or less, the reinforcement B includes a winding portion having a helical shape, a ring shape, or an X shape and a warp thread portion stretched in a direction parallel to a longitudinal direction of the artificial blood vessel, and the artificial blood vessel is a composite including the reinforcement A and reinforcement B inside the foam.

Artificial blood vessel

In an ion sourcein which a repeller electrodefor forming a repelling electric field that repels ions toward an ion emission portis provided inside of an ionization chamberion focusing electrodesandare respectively arranged between an electron introduction portand a filamentand between an electron discharge portand a counter filamentAn electric field formed by applying a predetermined voltage to each of the ion focusing electrodesandintrudes into the ionization chamberthrough the electron introduction portand the electron discharge portand becomes a focusing electric field that pushes the ions in an ion optical axis C direction. Ions at positions off a central part of the ionization chamberreceive the combined force of the force of the repelling electric field and the force of the focusing electric field, and move toward the ion emission portwhile approaching the ion optical axis C. Accordingly, the amount of ions sent out from the ion emission port increases. Further, even if a charge-up phenomenon occurs, the ion trajectories less easily change, and the stability of the sensitivity can be enhanced.

Ionization apparatus

An infrared light source used in spectrometers including an infrared range, a Fourier Transform Infrared Spectroscope (FTIR), etc. The infrared light source is composed of a panel made of sintered silicon nitride plates, a heating element made of metal and embedded in the panel, and a pair of conducting lines for supplying electricity to the heating element. The infrared light is emitted homogeneously from the flat surface of the panel, as compared to a conventional infrared light source using a metal filament in which infrared light is emitted inhomogeneously. It is preferred to form a silicon oxide layer on a surface of the panel to prevent initial change in the infrared emitting characteristic.

Growing community of inventors

Kyoto, Japan

Hideki Sato