Horiba, Ltd.

Sankyo Company, Limited

Kunio Terada

Seiji Usui

Hiroaki Takahasi

Yoshihiro Sato

Yukio Saito

Junji Aoki

Narihiro Oku

Takeshi Kohno

Hiroaki Uematsu

Koichi Sekiya

Yoshio Horii

Takao Yoshii

Takayuki Aoki

The present invention relates to a chemical luminescence-detecting apparatus that is provided with a plurality of optical detectors different in sensitivity in the vicinity of a photometric cell. A ratio of outputs from the optical detectors based on intensity of luminescence is previously determined and stored. Signal processing can multiply an output of a low sensitivity optical detector by a factor determined by the stored ratio to measure the intensity of luminescence so that a conversion value corresponding to an equivalent output from a high sensitivity optical detector may be obtained when the output from the high sensitivity optical detector has become saturated.

Chemical luminescence-detecting apparatus with multiple sensors

An improved pinch valve assembly for opening and closing flexible tubular conduits is provided. A housing member is capable of supporting flexible tubular conduits and contains an engagement member that is capable of closing the passageways through the flexible tubular conduit. The engagement member can configure to receive a stop member that is capable of restraining the engagement member at a position which prohibits closing of a flexible tubular conduits during non-operative storage and transporting modes of operation.

Pinch valve assembly with a storage mode

A flow through type ion electrode apparatus including a number of interconnectable block structures. Each block structure includes recesses in respective faces thereof, which lead to a through hole extending between the faces. A membrane electrode is located within each block structure so as to communicate with the through hole. A spacer having a through hole therein is inserted in a recess of each of a pair of adjacent block structures to interconnect the adjacent block structures.

Flow through type ion electrode

Flow through type liquid analyzer

A packing which includes a plurality of seal portions integrally formed on an annular elastic sheet. The seal portions are spaced about the circumference of the sheet and project from one side surface of the sheet. Each seal portion has a through hole extending entirely through the sheet parallel to the center axis of the sheet. In the preferred embodiment, the packing is used in a rotary change-over valve and each seal portion has an annular rib at its free end which is adapted to fit in a corresponding hole in a rotary valve inlet element with the packing held in a recess in the inlet element between the inlet element and a rotary valve outlet element.

Packing having multiple seal portions

An apparatus for drawing liquid samples and the like into an analytical testing machine, which includes a vertically extending guide rail fixed to a base, a movable support member slidably mounted on the guide rail for movement between an upper position and a lower position, a stopper for blocking movement of the movable support member above the upper position, an arm holding a probe at an end thereof and pivotally mounted to the movable support member at the other end, an arciform guide projecting from a pivot member so as to engage the upper surface of a fixed support member when the movable support member in its upper position and the arm is pivoted upward, and a detent mechanism fixed to the movable support member and elastically engageable with the pivot member for releasably holding the arm in a first predetermined inclination. When the movable support member is in its upper position, the arm is pivotable upward to a second predetermined inclination so as to bring the arciform guide into a position where it is vertically supported by the fixed support member.

Apparatus for drawing liquid samples into a liquid testing machine

The present invention is concerned with a tubing pump used for conveying various kinds of fluids with a plurality of tubes different from each other in inner diameter and pressed by a rotating tube-pressing device. Each of the tubing parts of tubes to be pressed by the tube pressing device is connected to the remaining parts of the tube so as to be replaceable and to compose a tube unit in cooperation with the remaining parts. Relative position coordinating pins are provided for enabling correct replacement of tubing parts assembled into the tube unit to be pressed.

Growing community of inventors

Kyoto, Japan

Kunio Terada