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. 20, 2009
Filed:
Dec. 20, 2006
Applicants:
Tatusya Muraoka, Kyoto, JP;
Hisataka Mukai, Kyoto, JP;
Inventors:
Tatusya Muraoka, Kyoto, JP;
Hisataka Mukai, Kyoto, JP;
Assignee:
Kyoto Electronics Manufacturing Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 1/00 (2006.01); G01J 1/40 (2006.01);
U.S. Cl.
CPC ...
Abstract
A stored light intensity measurement device capable of measuring an afterglow intensity from a light storing sign in a simple way, even if the light storing sign is provided on walls or risers of stairs in facilities or underground shopping mall. The stored light intensity measurement device comprising the light measuring unit configured o measure afterglow from a part of a light storing section on a light storing sign, and calculation means for calculating an afterglow intensity from the light storing sign based on the measured results.