Abstract: Provided is an electrolyte measuring structure that can reduce the influence of the retention of a sample solution on a measured value, perform accurate measurement, and smoothly perform replacement work of an ion-selective electrode. The electrolyte measuring structure that can be connected to another electrolyte measuring structure via a sealing material, includes a main body 401 having a flow path 401a therethrough, a fixing structure 404 having a fixing recess for fixing a sealing material 405 to the main body 401, and the sealing material 405. The sealing material 405 is an elastic body in which a sheet region and a protrusion region to be fixed to the fixing structure are integrally molded.

Abstract: Provided is a small-sized in-line heater which is also capable of rapid heating. This in-line heater includes a ceramic heater, and two piping blocks each including a lid member and a piping block body in which a flow pipe is formed. The piping blocks are disposed to face each other with the ceramic heater interposed in between.

Abstract: A ceramic heater unit having at least a heater and electrodes for passing electricity through above heater to elevate the temperature of the heater, characterized in that above heater and above electrodes are respectively made of a material containing silicon carbide, and above heater and above electrodes are integrally constructed with use of a binder made of a material containing silicon carbide.

Abstract: The present invention relates to a brushless motor which utilizes part of the motor housing, which is formed by a plastic mixed with particles or fibers of a magnetic material, as a stator yoke.