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:
Dec. 28, 2004
Filed:
May. 09, 2003
Seiichiro Ito, Tokyo, JP;
Mitsuhiro Tachibana, Tokyo, JP;
Hitachi Software Engineering Co., Ltd., Kanagawa, JP;
Abstract
A spotting pin capable of spotting equal amounts of a solution in a sequential manner comprises a first member having a solution holding portion formed at the tip thereof for holding a predetermined amount of solution, and a second member having a solution supply portion for holding the solution by a capillary action, the second member adapted to slide along the first member. As the solution supply portion is brought into contact with the solution holding portion , the solution enters the solution holding portion from the solution supply portion by a capillary action. As the solution supply portion and the solution holding portion are separated from each other, a predetermined amount of the solution can be carried in the solution holding portion . Then, as the solution holding portion is brought into contact with a water-absorbing support , a spot of a predetermined amount of the solution can be formed thereon.