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. 07, 1982
Filed:
Nov. 18, 1980
Hajime Matsushita, Katsuta, JP;
Yoshimasa Shimura, Katsuta, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
After a slide glass having blood smeared thereon has been mounted on a movable stage of a microscope, the stage is moved to position a view field of the microscope to the center of the slide glass. Then, the stage is moved in one direction along the length of the slide glass. The view field of the microscope moves as the stage is moved so that red blood corpuscle densities on the smear are measured sequentially along the length of the slide glass. Based on the measurement a computer determines an optimum test area on the smear for the recognition of white blood corpuscles and the stage is moved to a start position of the optimum test area by an instruction from the computer. Thereafter, a normal stage scan operation for detecting the white blood corpuscles is carried out and the detected white blood corpuscles are automatically classified.