A metal-graphite brush for supplying electricity to a coil wound around a core provided at a rotor of a motor is made of sintered material having porosities at a surface of, or inside, the sintered material. The metal-graphite brush is infiltrated by a liquid containing a plurality of kinds of glycol ether having varying numbers of alkylene oxide structure units. The liquid has a boiling point higher than that of water.

Web www.patentalert.com

< Production method of racemic 3-hydroxy-3-(2-phenylethyl)hexanoic acid C1-6 alkyl ester

< Process for producing acetylene compound

> Laminated polarizing film

> Medium for the production of betacarotene and other carotenoids from dunaliella salina (ARL 5) and a strain of dunaliella salina for production of carotenes using the novel media

~ 00258