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:
Jul. 06, 2004
Filed:
Apr. 19, 2001
Yoshiki Yasuda, Nara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
An object of the present invention is to provide a photocoupling device which can supply sufficient light to a light receiving element by increasing brightness on the input section side at a low input current, and provide a method of manufacturing, with which such a photocoupling device can be assembled without adding an extra process. A photocoupling device of the invention includes an input section having two light emitting elements and lead terminals for supplying a drive current to the light emitting elements, and an output section having a light receiving element opposed to light emitting faces of the light emitting elements and lead terminals for supplying a drive current to the light receiving element, wherein the two light emitting elements are connected in series.