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:
Aug. 28, 2018
Filed:
Apr. 20, 2017
Kyocera Document Solutions Inc., Osaka-shi, Osaka, JP;
Keisuke Isoda, Osaka, JP;
KYOCERA Document Solutions Inc., Osaka-shi, Osaka, JP;
Abstract
A toner amount detection sensor has a substrate, and a case housing. In the substrate, the light emitting element, the first light receiving element, and the second light receiving element are attached with an interval to the same first surface. In the substrate, first and second slits and are provided between a region where the light emitting element is attached and regions where the first light receiving element and the second light receiving element are attached. In the case housing, first and second light shielding walls and are disposed in such a manner as to extend to reach the inside of the first and second slits and when attached to the substrate and first and second light shielding walls and are provided between the light emitting element and the first light receiving element and between the light emitting element and the second light receiving element.