Slide type variable resistor
 A variable resistor includes a first resistor having linear resistance or attenuation characteristic, a second resistor disposed along the first resistor and having the linear resistance or attenuation characteristic, and a slider for bridging the first and second resistors, wherein one end of each of the first and second resistors is connected with each other. 
Sony Corporation
H
H01C
inventional
Masahiro
Fujita