National Institute of Advanced Industrial Science and Technology

Tanita Corporation

Sumitomo Electric Industries, Limited

Toppan Printing Co., Ltd.

Katayanagi Institute

Stack Electronics Co., Ltd.

Canon Kabushiki Kaisha

Satoshi Koide

Kenji Yokoyama

Yoshio Suzuki

Atsushi Nakamura

Isao Karube

Kazuyoshi Yano

Koji Sakairi

Hideya Konda

Toshio Morita

Hideki Yamaguchi

Nobuhiko Utagawa

A method of purifying 8-isoprostane is provided that includes a step of contacting a liquid sample containing 8-isoprostane with an ion exchange support having a quaternary ammonium salt immobilized thereon such that 8-isoprostane in the liquid sample is retained on the ion exchange support and a step of eluting 8-isoprostane from the ion exchange support using a first eluent containing a water-soluble organic solvent and water as main components.

Method of purifying 8-isoprostane

A method of quantitatively determining 8-isoprostane is provided that includes fluorescently labeling 8-isoprostane with a quinoxalinone derivative in an excess amount relative to 8-isoprostane, separating a fluorescently labeled 8-isoprostane from a unreacted quinoxalinone derivative by contacting a reaction mixture containing the fluorescently labeled 8-isoprostane and the unreacted quinoxalinone derivative with a cation exchange support having a sulfonic acid or a sulfonate immobilized thereon, and quantitatively determining the fluorescently labeled 8-isoprostane that has been separated from the unreacted quinoxalinone derivative.

Method of quantitatively determining 8-isoprostane

The methods for producing microchannel chips of the present invention comprise the steps of shielding substrate surfaces on which groove-like channels have been formed, using a mask that exposes the channels, and then forming polymer membranes on the exposed surfaces of the substrates; and the step of laminating cover materials onto the side of the substrate surfaces on which the channels have been formed.

Methods for producing microchannel chips, microchannel chips, methods for separating biomolecules using the microchannel chips, and electrophoretic apparatus having the microchannel chips

A composite cablewith a plugattached thereto includes optical fibers, metal wires, a tensile strength fiberand an envelopefor enveloping them and the plugincludes a ferruleof the plug for connecting the optical fiber, a cable clampand a Kevler holder(first fixing mechanism) for fixing the tensile strength fiberand a gasket(second fixing mechanism) for blocking a twist of the envelopeand further includes a joint mechanism () of a detachable traction cap for pulling the composite cableand inserting the composite cableinto piping.

Optical DVI cable system and method of laying cable

Growing community of inventors

Tokyo, Japan

Satoshi Koide