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. 19, 2004
Filed:
Mar. 05, 2001
Applicant:
Inventors:
Syozo Kasai, Hitachinaka, JP;
Kiyoshi Tsukada, Mito, JP;
Toshiaki Kita, Hitachinaka, JP;
Tomonari Morioka, Hitachinaka, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 2/7453 ; G01N 3/002 ;
U.S. Cl.
CPC ...
G01N 2/7453 ; G01N 3/002 ;
Abstract
The structure of a capillary head section is made such that the liquid contacting surfaces of a capillary holder, a capillary, and an adhesive form a plane surface, and this shared liquid contacting surface is made a mirror surface with a surface roughness of 3.2 s or less. In the shared liquid contacting surface, the ratio of the total area of the capillaries to the internal diameter area of the capillary holder is made 60 to 73%.