The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 24, 2023
Filed:
Jun. 27, 2019
Hitachi High-tech Corporation, Tokyo, JP;
Nobuhiko Sasaki, Tokyo, JP;
Takanori Sawada, Tokyo, JP;
Toshiyuki Shimamori, Tokyo, JP;
Chie Yabutani, Tokyo, JP;
HITACHI HIGH-TECH CORPORATION, Tokyo, JP;
Abstract
A chemical dispensing mechanism detects the liquid surface of a chemical including a chemical container mounted on a chemical disk. A calculation control unit controls the operation of the chemical dispensing mechanism. The calculation control unit performs a first raising operation, in which a chemical stored in the chemical container is suctioned by the chemical dispensing mechanism, which is then raised up to a first bubble detection position, determines whether a liquid surface is present, and outputs an alert indicating the presence of a bubble on the liquid surface when the liquid surface has been determined to be absent. The first bubble detection position is when the tip of a dispensing nozzle of the chemical dispensing mechanism remains inside the liquid when there are no bubbles present on the liquid surface, and is exposed from the inside of the liquid when there are bubbles present on the liquid surface.