Sekisui Medical Co., Ltd.

Erma Optical Works, Ltd.

Ulvac Service Corporation

Shinya Okuyama

Motoki Morita

Masashi Kobayashi

Keigo Kohno

Kazunori Saito

Kozo Shirato

Kazuyasu Kawashima

Kazuo Hiraizumi

Toru Yunoki

Satoshi Shinohara

Yasuo Koyama

Yoshio Yamamoto

Kanako Azuma

Akira Takeya

Minoru Tanaka

To provide an immunochromatographic test device capable of accurate diagnosis even when an excess sample is introduced. Provided is the immunochromatographic test device consisting: a test strip; a lower housing including a plurality of support bases that support the test strip; and an upper housing including a dropping hole for dropping a sample into the test strip and a detection window in a direction in which the sample introduced from the dropping hole develops on the test strip, wherein a width of the support base that supports portion of the test strip exposed from the detection window is smaller than a width of the test strip, or wherein among the plurality of support bases, the width of the support base arranged on the lower housing between a position corresponding to the detection window and a position corresponding to the dropping hole is larger than the width of the test strip.

Immunochromatographic test device

A measuring apparatus for measuring the number and size of impurities such as dust and bacteria in super-pure water includes a sealed container; a sample supply line which sealingly interconnects a source of super-pure water with the sealed container and supplies a sample mixture of super-pure water and electrolyte to the sealed container; an overflow pipe which sealingly connects with the side of the sealed container; a negative electrode which extends into the sample mixture in the sealed container; a hollow sensor which extends into the sample mixture in the sealed container, the hollow sensor containing a positive electrode surrounded by electrolyte and having a small hole at its lower end; and a detecting circuit connected to said negative and positive electrodes for supplying a certain DC current therebetween and detecting voltage pulses caused by impurities passing through the small hole into the hollow sensor.

Apparatus for measuring impurities in super-pure water without exposure

Growing community of inventors

Tokyo, Japan

Shinya Okuyama