US 12,332,103 B2
Dispensing device, automated analysis device, and dispensing method
Masaaki Hirano, Tokyo (JP); Masafumi Shimada, Tokyo (JP); Eiichiro Takada, Tokyo (JP); and Akihisa Makino, Tokyo (JP)
Assigned to HITACHI HIGH-TECH CORPORATION, Tokyo (JP)
Appl. No. 17/919,820
Filed by HITACHI HIGH-TECH CORPORATION, Tokyo (JP)
PCT Filed Feb. 2, 2021, PCT No. PCT/JP2021/003675
§ 371(c)(1), (2) Date Oct. 19, 2022,
PCT Pub. No. WO2021/215068, PCT Pub. Date Oct. 28, 2021.
Claims priority of application No. 2020-077207 (JP), filed on Apr. 24, 2020.
Prior Publication US 2023/0236056 A1, Jul. 27, 2023
Int. Cl. G01N 35/10 (2006.01); G01F 23/263 (2022.01)
CPC G01F 23/266 (2013.01) [G01N 35/1016 (2013.01); G01N 2035/1025 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A dispensing device that dispenses a liquid, comprising:
a nozzle that suctions or ejects a liquid; and
a moving mechanism that moves the nozzle,
wherein the nozzle contains a first liquid portion and starts a first suction before contacting the liquid to suction segmenting air into the nozzle during a first period which commences at a first time when the nozzle starts to be lowered toward a liquid level of the liquid and ends at a second time when an end portion of the nozzle comes into contact with the liquid level of the liquid, and the nozzle further starts a second suction of a second liquid portion during a second period before the lowering of the nozzle is stopped so that an entirety of the segmenting air remains disposed between the first liquid portion and the second liquid portion.