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:
Apr. 26, 2022
Filed:
Jan. 08, 2021
Asahi Kasei Microdevices Corporation, Tokyo, JP;
Asahi Kasei Microdevices Corporation, Tokyo, JP;
Abstract
Sticking of core layer is suppressed, and deterioration of sensitivity of a sensor is prevented. An optical waveguide () includes a substrate (), a core layer (), a support, and a protrusion (). The core layer () can transmit light. The support connects at least a portion of the substrate () and a portion of the core layer () together. The support supports the core layer (). The protrusion () is arranged at a position different from a position of the support in a space between the substrate () and the core layer (). The protrusion () has a maximum height at a position deviated from a central position cp of the core layer () in a width direction. The protrusion () protrudes toward the core layer () from the substrate ().