Provided is a powder coating device including a powder fluidization tank including a bottom member having a plurality of spacers interposed between a first plate member and a second plate member, a fixing member to which the powder fluidization tank is fixed, a coupling support member coupling and supporting the first plate member to the fixing member, and a vibration mechanism coupled to the first plate member, wherein the coupling support member includes an elastic member.

An apparatus for coating a glass substrate having a plurality of through-holes, the apparatus including a support frame including one or more abutment portions configured to support the glass substrate in a levelled orientation; a dispenser head operable to deposit a liquid coating on the glass substrate; and a coating unit configured to apply a force on the liquid coating so as to urge the liquid coating to permeate the plurality of through-holes in the glass substrate.

An apparatus for coating a glass substrate having a plurality of through-holes, the apparatus including a support frame including one or more abutment portions configured to support the glass substrate in a levelled orientation; a dispenser head operable to deposit a liquid coating on the glass substrate; and a coating unit configured to apply a force on the liquid coating so as to urge the liquid coating to permeate the plurality of through-holes in the glass substrate.

According to an embodiment, an apparatus for applying hydroxyapatite to a nonwoven fabric includes a tank, a shower head, an ultrasonic wave generator, and a drying section. The tank stores suspension containing hydroxyapatite. The shower head jets the suspension against the nonwoven fabric in the suspension in the tank. The ultrasonic wave generator emits ultrasonic waves against the nonwoven fabric. The drying section dries the nonwoven fabric in a wet state removed from the suspension in the tank.

According to an embodiment, an apparatus for applying hydroxyapatite to a nonwoven fabric includes a tank, a shower head, an ultrasonic wave generator, and a drying section. The tank stores suspension containing hydroxyapatite. The shower head jets the suspension against the nonwoven fabric in the suspension in the tank. The ultrasonic wave generator emits ultrasonic waves against the nonwoven fabric. The drying section dries the nonwoven fabric in a wet state removed from the suspension in the tank.