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:
Sep. 28, 2021
Filed:
Jul. 03, 2017
Visual Technology Laboratory Inc., Tokyo, JP;
Mitsui Chemicals, Inc., Tokyo, JP;
Yoshiki Nakamura, Yokohama, JP;
Sueko Kanaya, Ota-ku, JP;
Noriaki Asada, Mobara, JP;
Shoko Matsumura, Ichihara, JP;
Akinori Nagatomo, Omuta, JP;
Taizo Nishimoto, Chiba, JP;
VISUAL TECHNOLOGY LABORATORY INC., Tokyo, JP;
MITSUI CHEMICALS, INC., Tokyo, JP;
Abstract
An analysis unit determines at least two boundaries by determining; in a coordinate system indicating a correlation between a luminance contrast value between a luminance of an attention portion and a luminance of a background portion, and a luminance average value of a visual target including the attention portion and the background portion; the boundary between a region where a subject has a visibility and a region where the subject does not have the visibility for each combination of stimulus values of a color stimulus of a visual target.