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:
Jan. 13, 1981
Filed:
May. 22, 1978
Applicant:
Inventors:
Eiichi Asai, Minami-ashigara, JP;
Kazuo Shiota, Minami-ashigara, JP;
Koji Takahashi, Minami-ashigara, JP;
Taizo Akimoto, Minami-ashigara, JP;
Assignee:
Fuji Photo Film Co., Ltd., Minami-ashigara, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01J / ; G03B / ;
U.S. Cl.
CPC ...
356404 ; 354 38 ;
Abstract
A particular color is defined in terms of red, green and blue densities thereof. When the densities fall within a predetermined ellipsoid in a three-dimensional chromaticity coordinate system the axes of which respectively represent the red, green and blue densities, the color is defined to be of the particular color. The ellipsoid is represented by the following formula.